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- Clean up sigaction() code
- Add a port scanner example
- Introduce a ParseCidr() API
- Clean up our futex abstraction code
- Fix a harmless integer overflow in ParseIp()
- Use kernel semaphores on NetBSD to make threads much faster
This commit is contained in:
Justine Tunney 2022-11-07 02:22:09 -08:00
parent 539bddce8c
commit c995838e5c
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
107 changed files with 1085 additions and 492 deletions
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127
examples/portscan.c Normal file
View file

@ -0,0 +1,127 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/assert.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/timeval.h"
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/fmt/fmt.h"
#include "libc/mem/alloca.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/sock.h"
#include "libc/sock/struct/sockaddr.h"
#include "libc/stdio/stdio.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/ipproto.h"
#include "libc/sysv/consts/so.h"
#include "libc/sysv/consts/sock.h"
#include "libc/sysv/consts/sol.h"
#include "net/http/ip.h"
/**
* @fileoverview fast local network port scanner, e.g.
*
* make -j8 o//examples/portscan.com
* o//examples/portscan.com 10.10.10.0/24 22
*/
const char *FormatIp(char buf[16], uint32_t ip) {
snprintf(buf, 16, "%hhu.%hhu.%hhu.%hhu", ip >> 24, ip >> 16, ip >> 8, ip);
return buf;
}
#define FormatIp(x) FormatIp(alloca(16), x)
int main(int argc, char *argv[]) {
int port;
struct Cidr in;
uint32_t netmask;
const char *status;
struct timeval timeout;
uint32_t network_address;
uint32_t last_host_address;
uint32_t first_host_address;
if (argc != 3) {
PrintUsage:
fprintf(stderr,
"usage: %s IP/CIDR PORT\n"
"example: %s 192.168.0.0/24 22\n",
argv[0], argv[0]);
return 1;
}
in = ParseCidr(argv[1], -1);
if (in.addr == -1) {
fprintf(stderr, "error: bad ip/cidr\n");
goto PrintUsage;
}
port = atoi(argv[2]);
if (!(1 <= port && port <= 65535)) {
fprintf(stderr, "error: bad port\n");
goto PrintUsage;
}
if (in.cidr > 30) {
fprintf(stderr, "error: maximum supported cidr is 30\n");
goto PrintUsage;
}
if (in.cidr < 22) {
fprintf(stderr, "error: minimum cidr support right now is 22\n");
goto PrintUsage;
}
netmask = -1u << (32 - in.cidr);
network_address = in.addr & netmask;
first_host_address = network_address + 1;
last_host_address = (network_address | ~netmask) - 1;
assert(last_host_address > first_host_address);
assert(last_host_address - first_host_address < 1024);
fprintf(stderr, "scanning %s through %s\n", FormatIp(first_host_address),
FormatIp(last_host_address));
timeout = timeval_frommillis(100);
for (int64_t ip = first_host_address; ip <= last_host_address; ++ip) {
if (!fork()) {
socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
setsockopt(3, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout));
setsockopt(3, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout));
if (!connect(3,
(struct sockaddr *)&(struct sockaddr_in){
.sin_family = AF_INET,
.sin_addr.s_addr = htonl(ip),
.sin_port = htons(port),
},
sizeof(struct sockaddr_in))) {
status = "open";
} else if (errno == ECONNREFUSED) {
status = "closed";
} else if (errno != EINPROGRESS) {
status = _strerrno(errno);
} else {
status = 0;
}
if (status) {
printf("%-15s %s\n", FormatIp(ip), status);
}
_Exit(0);
}
}
for (;;) {
if (wait(0) == -1 && errno == ECHILD) {
break;
}
}
}

5
libc/calls/calls.mk
View file

@ -184,7 +184,10 @@ o/$(MODE)/libc/calls/timespec_tomicros.o \
o/$(MODE)/libc/calls/timespec_totimeval.o \
o/$(MODE)/libc/calls/timespec_fromnanos.o \
o/$(MODE)/libc/calls/timespec_frommillis.o \
o/$(MODE)/libc/calls/timespec_frommicros.o: private \
o/$(MODE)/libc/calls/timespec_frommicros.o \
o/$(MODE)/libc/calls/timeval_tomillis.o \
o/$(MODE)/libc/calls/timeval_frommillis.o \
o/$(MODE)/libc/calls/timeval_frommicros.o: private \
OVERRIDE_CFLAGS += \
-O2

200
libc/calls/sigaction.c
View file

@ -22,11 +22,6 @@
#include "libc/calls/internal.h"
#include "libc/calls/sig.internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigaction-freebsd.internal.h"
#include "libc/calls/struct/sigaction-linux.internal.h"
#include "libc/calls/struct/sigaction-netbsd.h"
#include "libc/calls/struct/sigaction-openbsd.internal.h"
#include "libc/calls/struct/sigaction-xnu.internal.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/sigaction.internal.h"
#include "libc/calls/struct/siginfo.internal.h"
@ -46,6 +41,7 @@
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/limits.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/errfuns.h"
@ -58,110 +54,111 @@ STATIC_YOINK("strsignal"); // for kprintf()
#define SA_RESTORER 0x04000000
#ifndef SWITCHEROO
#define SWITCHEROO(S1, S2, A, B, C, D) \
do { \
autotype((S2).A) a = (typeof((S2).A))(S1).A; \
autotype((S2).B) b = (typeof((S2).B))(S1).B; \
autotype((S2).C) c = (typeof((S2).C))(S1).C; \
typeof((S2).D) d; \
bzero(&d, sizeof(d)); \
memcpy(&d, &((S1).D), MIN(sizeof(d), sizeof((S1).D))); \
(S2).A = a; \
(S2).B = b; \
(S2).C = c; \
bzero(&((S2).D), sizeof((S2).D)); \
memcpy(&((S2).D), &d, MIN(sizeof(d), sizeof((S2).D))); \
} while (0);
#endif
union metasigaction {
struct sigaction cosmo;
struct sigaction_linux linux;
struct sigaction_freebsd freebsd;
struct sigaction_openbsd openbsd;
struct sigaction_netbsd netbsd;
struct sigaction_xnu_in xnu_in;
struct sigaction_xnu_out xnu_out;
};
void __sigenter_xnu(int, struct siginfo *, void *) hidden;
void __sigenter_linux(int, struct siginfo *, void *) hidden;
void __sigenter_netbsd(int, struct siginfo *, void *) hidden;
void __sigenter_freebsd(int, struct siginfo *, void *) hidden;
void __sigenter_openbsd(int, struct siginfo *, void *) hidden;
static void sigaction_cosmo2native(union metasigaction *sa) {
void *handler;
uint64_t flags;
void *restorer;
uint32_t mask[4];
if (!sa) return;
switch (__hostos) {
case _HOSTLINUX:
SWITCHEROO(sa->cosmo, sa->linux, sa_handler, sa_flags, sa_restorer,
sa_mask);
break;
case _HOSTXNU:
SWITCHEROO(sa->cosmo, sa->xnu_in, sa_handler, sa_flags, sa_restorer,
sa_mask);
break;
case _HOSTFREEBSD:
SWITCHEROO(sa->cosmo, sa->freebsd, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
case _HOSTOPENBSD:
SWITCHEROO(sa->cosmo, sa->openbsd, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
case _HOSTNETBSD:
SWITCHEROO(sa->cosmo, sa->netbsd, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
default:
break;
flags = sa->cosmo.sa_flags;
handler = sa->cosmo.sa_handler;
restorer = sa->cosmo.sa_restorer;
mask[0] = sa->cosmo.sa_mask.__bits[0];
mask[1] = sa->cosmo.sa_mask.__bits[0] >> 32;
mask[2] = sa->cosmo.sa_mask.__bits[1];
mask[3] = sa->cosmo.sa_mask.__bits[1] >> 32;
if (IsLinux()) {
sa->linux.sa_flags = flags;
sa->linux.sa_handler = handler;
sa->linux.sa_restorer = restorer;
sa->linux.sa_mask[0] = mask[0];
sa->linux.sa_mask[1] = mask[1];
} else if (IsXnu()) {
sa->xnu_in.sa_flags = flags;
sa->xnu_in.sa_handler = handler;
sa->xnu_in.sa_restorer = restorer;
sa->xnu_in.sa_mask[0] = mask[0];
} else if (IsFreebsd()) {
sa->freebsd.sa_flags = flags;
sa->freebsd.sa_handler = handler;
sa->freebsd.sa_mask[0] = mask[0];
sa->freebsd.sa_mask[1] = mask[1];
sa->freebsd.sa_mask[2] = mask[2];
sa->freebsd.sa_mask[3] = mask[3];
} else if (IsOpenbsd()) {
sa->openbsd.sa_flags = flags;
sa->openbsd.sa_handler = handler;
sa->openbsd.sa_mask[0] = mask[0];
} else if (IsNetbsd()) {
sa->netbsd.sa_flags = flags;
sa->netbsd.sa_handler = handler;
sa->netbsd.sa_mask[0] = mask[0];
sa->netbsd.sa_mask[1] = mask[1];
sa->netbsd.sa_mask[2] = mask[2];
sa->netbsd.sa_mask[3] = mask[3];
}
}
static void sigaction_native2cosmo(union metasigaction *sa) {
void *handler;
uint64_t flags;
void *restorer = 0;
uint32_t mask[4] = {0};
if (!sa) return;
switch (__hostos) {
case _HOSTLINUX:
SWITCHEROO(sa->linux, sa->cosmo, sa_handler, sa_flags, sa_restorer,
sa_mask);
break;
case _HOSTXNU:
SWITCHEROO(sa->xnu_out, sa->cosmo, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
case _HOSTFREEBSD:
SWITCHEROO(sa->freebsd, sa->cosmo, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
case _HOSTOPENBSD:
SWITCHEROO(sa->openbsd, sa->cosmo, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
case _HOSTNETBSD:
SWITCHEROO(sa->netbsd, sa->cosmo, sa_handler, sa_flags, sa_flags,
sa_mask);
break;
default:
break;
if (IsLinux()) {
flags = sa->linux.sa_flags;
handler = sa->linux.sa_handler;
restorer = sa->linux.sa_restorer;
mask[0] = sa->linux.sa_mask[0];
mask[1] = sa->linux.sa_mask[1];
} else if (IsXnu()) {
flags = sa->xnu_out.sa_flags;
handler = sa->xnu_out.sa_handler;
mask[0] = sa->xnu_out.sa_mask[0];
} else if (IsFreebsd()) {
flags = sa->freebsd.sa_flags;
handler = sa->freebsd.sa_handler;
mask[0] = sa->freebsd.sa_mask[0];
mask[1] = sa->freebsd.sa_mask[1];
mask[2] = sa->freebsd.sa_mask[2];
mask[3] = sa->freebsd.sa_mask[3];
} else if (IsOpenbsd()) {
flags = sa->openbsd.sa_flags;
handler = sa->openbsd.sa_handler;
mask[0] = sa->openbsd.sa_mask[0];
} else if (IsNetbsd()) {
flags = sa->netbsd.sa_flags;
handler = sa->netbsd.sa_handler;
mask[0] = sa->netbsd.sa_mask[0];
mask[1] = sa->netbsd.sa_mask[1];
mask[2] = sa->netbsd.sa_mask[2];
mask[3] = sa->netbsd.sa_mask[3];
} else {
return;
}
sa->cosmo.sa_flags = flags;
sa->cosmo.sa_handler = handler;
sa->cosmo.sa_restorer = restorer;
sa->cosmo.sa_mask.__bits[0] = mask[0] | (uint64_t)mask[1] << 32;
sa->cosmo.sa_mask.__bits[1] = mask[2] | (uint64_t)mask[3] << 32;
}
static int __sigaction(int sig, const struct sigaction *act,
struct sigaction *oldact) {
_Static_assert((sizeof(struct sigaction) > sizeof(struct sigaction_linux) &&
sizeof(struct sigaction) > sizeof(struct sigaction_xnu_in) &&
sizeof(struct sigaction) > sizeof(struct sigaction_xnu_out) &&
sizeof(struct sigaction) > sizeof(struct sigaction_freebsd) &&
sizeof(struct sigaction) > sizeof(struct sigaction_openbsd) &&
sizeof(struct sigaction) > sizeof(struct sigaction_netbsd)),
"sigaction cosmo abi needs tuning");
_Static_assert(
(sizeof(struct sigaction) >= sizeof(struct sigaction_linux) &&
sizeof(struct sigaction) >= sizeof(struct sigaction_xnu_in) &&
sizeof(struct sigaction) >= sizeof(struct sigaction_xnu_out) &&
sizeof(struct sigaction) >= sizeof(struct sigaction_freebsd) &&
sizeof(struct sigaction) >= sizeof(struct sigaction_openbsd) &&
sizeof(struct sigaction) >= sizeof(struct sigaction_netbsd)),
"sigaction cosmo abi needs tuning");
int64_t arg4, arg5;
int rc, rva, oldrva;
sigaction_f sigenter;
struct sigaction *ap, copy;
if (IsMetal()) return enosys(); /* TODO: Signals on Metal */
if (!(0 < sig && sig < NSIG)) return einval();
if (!(1 <= sig && sig <= _NSIG)) return einval();
if (sig == SIGKILL || sig == SIGSTOP) return einval();
if (IsAsan() && ((act && !__asan_is_valid(act, sizeof(*act))) ||
(oldact && !__asan_is_valid(oldact, sizeof(*oldact))))) {
@ -184,18 +181,23 @@ static int __sigaction(int sig, const struct sigaction *act,
if (act) {
memcpy(&copy, act, sizeof(copy));
ap = &copy;
if (IsXnu()) {
if (IsLinux()) {
if (!(ap->sa_flags & SA_RESTORER)) {
ap->sa_flags |= SA_RESTORER;
ap->sa_restorer = &__restore_rt;
}
if (IsWsl1()) {
sigenter = __sigenter_wsl;
} else {
sigenter = ap->sa_sigaction;
}
} else if (IsXnu()) {
ap->sa_restorer = (void *)&__sigenter_xnu;
sigenter = __sigenter_xnu;
// mitigate Rosetta signal handling strangeness
// https://github.com/jart/cosmopolitan/issues/455
ap->sa_flags |= SA_SIGINFO;
} else if (IsLinux()) {
if (!(ap->sa_flags & SA_RESTORER)) {
ap->sa_flags |= SA_RESTORER;
ap->sa_restorer = &__restore_rt;
}
sigenter = __sigenter_linux;
} else if (IsNetbsd()) {
sigenter = __sigenter_netbsd;
} else if (IsFreebsd()) {

5
libc/calls/sigenter-freebsd.c
View file

@ -20,7 +20,6 @@
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigaction-freebsd.internal.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo-freebsd.internal.h"
#include "libc/calls/struct/siginfo-meta.internal.h"
@ -51,7 +50,7 @@ privileged void __sigenter_freebsd(int sig, struct siginfo_freebsd *freebsdinfo,
g.uc.uc_stack.ss_sp = ctx->uc_stack.ss_sp;
g.uc.uc_stack.ss_size = ctx->uc_stack.ss_size;
g.uc.uc_stack.ss_flags = ctx->uc_stack.ss_flags;
__repmovsb(&g.uc.uc_sigmask, &ctx->uc_sigmask,
__repmovsb(&g.uc.uc_sigmask, ctx->uc_sigmask,
MIN(sizeof(g.uc.uc_sigmask), sizeof(ctx->uc_sigmask)));
g.uc.uc_mcontext.r8 = ctx->uc_mcontext.mc_r8;
g.uc.uc_mcontext.r9 = ctx->uc_mcontext.mc_r9;
@ -82,7 +81,7 @@ privileged void __sigenter_freebsd(int sig, struct siginfo_freebsd *freebsdinfo,
ctx->uc_stack.ss_size = g.uc.uc_stack.ss_size;
ctx->uc_stack.ss_flags = g.uc.uc_stack.ss_flags;
ctx->uc_flags = g.uc.uc_flags;
__repmovsb(&ctx->uc_sigmask, &g.uc.uc_sigmask,
__repmovsb(ctx->uc_sigmask, &g.uc.uc_sigmask,
MIN(sizeof(g.uc.uc_sigmask), sizeof(ctx->uc_sigmask)));
ctx->uc_mcontext.mc_rdi = g.uc.uc_mcontext.rdi;
ctx->uc_mcontext.mc_rsi = g.uc.uc_mcontext.rsi;

3
libc/calls/sigenter-linux.c
View file

@ -28,8 +28,7 @@
#include "libc/str/str.h"
#include "libc/sysv/consts/sa.h"
privileged void __sigenter_linux(int sig, struct siginfo *info,
ucontext_t *ctx) {
privileged void __sigenter_wsl(int sig, struct siginfo *info, ucontext_t *ctx) {
int i, rva, flags;
rva = __sighandrvas[sig & (NSIG - 1)];
if (rva >= kSigactionMinRva) {

1
libc/calls/sigenter-netbsd.c
View file

@ -20,7 +20,6 @@
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigaction-freebsd.internal.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo-meta.internal.h"
#include "libc/calls/struct/siginfo-netbsd.internal.h"

1
libc/calls/sigenter-openbsd.c
View file

@ -20,7 +20,6 @@
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/state.internal.h"
#include "libc/calls/struct/sigaction-freebsd.internal.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo-meta.internal.h"
#include "libc/calls/struct/siginfo-openbsd.internal.h"

16
libc/calls/struct/sigaction-freebsd.internal.h
View file

@ -1,16 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_FREEBSD_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_FREEBSD_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
struct sigset_freebsd {
uint32_t sig[4];
};
struct sigaction_freebsd {
intptr_t sa_handler;
uint32_t sa_flags;
struct sigset_freebsd sa_mask;
};
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_FREEBSD_H_ */

17
libc/calls/struct/sigaction-linux.internal.h
View file

@ -1,17 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_LINUX_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_LINUX_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
struct sigset_linux {
uint32_t sig[2];
};
struct sigaction_linux {
intptr_t sa_handler;
uint64_t sa_flags;
void (*sa_restorer)(void);
struct sigset_linux sa_mask;
};
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_LINUX_H_ */

18
libc/calls/struct/sigaction-netbsd.h
View file

@ -1,18 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_NETBSD_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_NETBSD_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
struct sigset_netbsd {
uint32_t sig[4];
};
struct sigaction_netbsd {
intptr_t sa_handler;
struct sigset_netbsd sa_mask;
uint32_t sa_flags;
};
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_NETBSD_H_ */

16
libc/calls/struct/sigaction-openbsd.internal.h
View file

@ -1,16 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_OPENBSD_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_OPENBSD_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
struct sigset_openbsd {
uint32_t sig[1];
};
struct sigaction_openbsd {
intptr_t sa_handler;
struct sigset_openbsd sa_mask;
int32_t sa_flags;
};
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_OPENBSD_H_ */

27
libc/calls/struct/sigaction-xnu.internal.h
View file

@ -1,27 +0,0 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_XNU_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_XNU_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
struct __darwin_ucontext;
struct __darwin_siginfo;
struct sigset_xnu {
uint32_t sig[1];
};
struct sigaction_xnu_in {
intptr_t sa_handler;
void (*sa_restorer)(void *, int, int, const struct __darwin_siginfo *,
const struct __darwin_ucontext *);
struct sigset_xnu sa_mask;
int32_t sa_flags;
};
struct sigaction_xnu_out {
intptr_t sa_handler;
struct sigset_xnu sa_mask;
int32_t sa_flags;
};
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_XNU_H_ */

1
libc/calls/struct/sigaction.h
View file

@ -20,7 +20,6 @@ struct sigaction { /* cosmo abi */
uint64_t sa_flags;
void (*sa_restorer)(void);
struct sigset sa_mask;
int64_t __pad;
};
sighandler_t signal(int, sighandler_t);

55
libc/calls/struct/sigaction.internal.h
View file

@ -1,10 +1,65 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGACTION_INTERNAL_H_
#include "libc/calls/struct/sigaction.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/mem/alloca.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
struct sigaction_linux {
void *sa_handler;
uint64_t sa_flags;
void *sa_restorer;
uint32_t sa_mask[2];
};
struct sigaction_freebsd {
void *sa_handler;
uint32_t sa_flags;
uint32_t sa_mask[4];
};
struct sigaction_openbsd {
void *sa_handler;
uint32_t sa_mask[1];
uint32_t sa_flags;
};
struct sigaction_netbsd {
void *sa_handler;
uint32_t sa_mask[4];
uint32_t sa_flags;
};
struct sigaction_xnu_in {
void *sa_handler;
void *sa_restorer;
uint32_t sa_mask[1];
uint32_t sa_flags;
};
struct sigaction_xnu_out {
void *sa_handler;
uint32_t sa_mask[1];
uint32_t sa_flags;
};
union metasigaction {
struct sigaction cosmo;
struct sigaction_linux linux;
struct sigaction_freebsd freebsd;
struct sigaction_openbsd openbsd;
struct sigaction_netbsd netbsd;
struct sigaction_xnu_in xnu_in;
struct sigaction_xnu_out xnu_out;
};
void __sigenter_xnu(int, struct siginfo *, void *) hidden;
void __sigenter_wsl(int, struct siginfo *, void *) hidden;
void __sigenter_netbsd(int, struct siginfo *, void *) hidden;
void __sigenter_freebsd(int, struct siginfo *, void *) hidden;
void __sigenter_openbsd(int, struct siginfo *, void *) hidden;
const char *DescribeSigaction(char[256], int, const struct sigaction *);
#define DescribeSigaction(rc, sa) DescribeSigaction(alloca(256), rc, sa)

2
libc/calls/struct/siginfo.internal.h
View file

@ -1,7 +1,5 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGINFO_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_SIGINFO_INTERNAL_H_
#include "libc/calls/struct/sigaction-xnu.internal.h"
#include "libc/calls/struct/siginfo-xnu.internal.h"
#include "libc/calls/struct/siginfo.h"
#include "libc/mem/alloca.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)

3
libc/calls/struct/timespec.internal.h
View file

@ -14,12 +14,13 @@ int sys_clock_gettime_nt(int, struct timespec *) hidden;
int sys_clock_gettime_xnu(int, struct timespec *) hidden;
int sys_clock_nanosleep(int, int, const struct timespec *, struct timespec *) hidden;
int sys_clock_nanosleep_nt(int, int, const struct timespec *, struct timespec *) hidden;
int sys_clock_nanosleep_xnu(int, int, const struct timespec *, struct timespec *) hidden;
int sys_clock_nanosleep_openbsd(int, int, const struct timespec *, struct timespec *) hidden;
int sys_clock_nanosleep_xnu(int, int, const struct timespec *, struct timespec *) hidden;
int sys_futimens(int, const struct timespec[2]) hidden;
int sys_nanosleep(const struct timespec *, struct timespec *) hidden;
int sys_nanosleep_nt(const struct timespec *, struct timespec *) hidden;
int sys_nanosleep_xnu(const struct timespec *, struct timespec *) hidden;
int sys_sem_timedwait(int64_t, const struct timespec *) hidden;
int sys_utimensat(int, const char *, const struct timespec[2], int) hidden;
int sys_utimensat_nt(int, const char *, const struct timespec[2], int) hidden;
int sys_utimensat_xnu(int, const char *, const struct timespec[2], int) hidden;

2
libc/calls/struct/timeval.h
View file

@ -17,6 +17,8 @@ int lutimes(const char *, const struct timeval[2]);
int utimes(const char *, const struct timeval[2]);
int timeval_cmp(struct timeval, struct timeval) pureconst;
struct timeval timeval_frommicros(int64_t) pureconst;
struct timeval timeval_frommillis(int64_t) pureconst;
struct timeval timeval_add(struct timeval, struct timeval) pureconst;
struct timeval timeval_sub(struct timeval, struct timeval) pureconst;
struct timeval timespec_totimeval(struct timespec) pureconst;

3
libc/calls/struct/ucontext-freebsd.internal.h
View file

@ -1,6 +1,5 @@
#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_UCONTEXT_FREEBSD_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_UCONTEXT_FREEBSD_INTERNAL_H_
#include "libc/calls/struct/sigaction-freebsd.internal.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
@ -52,7 +51,7 @@ struct mcontext_freebsd {
};
struct ucontext_freebsd {
struct sigset_freebsd uc_sigmask;
uint32_t uc_sigmask[4];
struct mcontext_freebsd uc_mcontext;
struct ucontext_freebsd *uc_link;
struct stack_freebsd uc_stack;

9
libc/calls/syscall-sysv.internal.h
View file

@ -83,6 +83,15 @@ i32 sys_pivot_root(const char *, const char *) hidden;
i32 sys_pledge(const char *, const char *) hidden;
i32 sys_posix_openpt(i32) hidden;
i32 sys_renameat(i32, const char *, i32, const char *) hidden;
i32 sys_sem_close(i64) hidden;
i32 sys_sem_destroy(i64) hidden;
i32 sys_sem_getvalue(i64, u32 *) hidden;
i32 sys_sem_init(u32, i64 *) hidden;
i32 sys_sem_open(const char *, int, u32, i64 *) hidden;
i32 sys_sem_post(i64) hidden;
i32 sys_sem_trywait(i64) hidden;
i32 sys_sem_unlink(const char *) hidden;
i32 sys_sem_wait(i64) hidden;
i32 sys_setfsgid(i32) hidden;
i32 sys_setfsuid(i32) hidden;
i32 sys_setgid(i32) hidden;

5
libc/calls/timespec_tonanos.c
View file

@ -22,8 +22,9 @@
/**
* Converts timespec to scalar.
*
* This function will detect overflow in which case `INT64_MAX` or
* `INT64_MIN` may be returned. The `errno` variable isn't changed.
. * This returns the absolute number of nanoseconds in a timespec. If
* overflow happens, then `INT64_MAX` or `INT64_MIN` is returned. The
* `errno` variable isn't changed.
*
* @return 64-bit integer holding nanoseconds since epoch
*/

29
libc/calls/timeval_frommicros.c Normal file
View file

@ -0,0 +1,29 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/timeval.h"
/**
* Converts timeval interval from microseconds.
*/
struct timeval timeval_frommicros(int64_t x) {
struct timeval tv;
tv.tv_sec = x / 1000000;
tv.tv_usec = x % 1000000;
return tv;
}

29
libc/calls/timeval_frommillis.c Normal file
View file

@ -0,0 +1,29 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/timeval.h"
/**
* Converts timeval interval from milliseconds.
*/
struct timeval timeval_frommillis(int64_t x) {
struct timeval tv;
tv.tv_sec = x / 1000;
tv.tv_usec = x % 1000 * 1000;
return tv;
}

41
libc/calls/timeval_tomicros.c Normal file
View file

@ -0,0 +1,41 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/timeval.h"
#include "libc/limits.h"
/**
* Converts timeval to scalar.
*
* This returns the absolute number of microseconds in a timeval. If
* overflow happens, then `INT64_MAX` or `INT64_MIN` is returned. The
* `errno` variable isn't changed.
*
* @return 64-bit integer holding microseconds since epoch
*/
int64_t timeval_tomicros(struct timeval x) {
int64_t ns;
if (!__builtin_mul_overflow(x.tv_sec, 1000000ul, &ns) &&
!__builtin_add_overflow(ns, x.tv_usec, &ns)) {
return ns;
} else if (x.tv_sec < 0) {
return INT64_MIN;
} else {
return INT64_MAX;
}
}

56
libc/calls/timeval_tomillis.c Normal file
View file

@ -0,0 +1,56 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/timeval.h"
#include "libc/limits.h"
/**
* Reduces `ts` from 1e-6 to 1e-3 granularity w/ ceil rounding.
*
* This function returns the absolute number of milliseconds in a
* timeval. Ceiling rounding is used. For example, if `ts` is one
* nanosecond, then one millisecond will be returned. Ceil rounding is
* needed by many interfaces, e.g. setitimer(), because the zero
* timestamp has a valial meaning.
*
* This function also detects overflow in which case `INT64_MAX` or
* `INT64_MIN` may be returned. The `errno` variable isn't changed.
*
* @return 64-bit scalar milliseconds since epoch
*/
int64_t timeval_tomillis(struct timeval ts) {
int64_t ms;
// reduce precision from micros to millis
if (ts.tv_usec <= 999000) {
ts.tv_usec = (ts.tv_usec + 999) / 1000;
} else {
ts.tv_usec = 0;
if (ts.tv_sec < INT64_MAX) {
ts.tv_sec += 1;
}
}
// convert to scalar result
if (!__builtin_mul_overflow(ts.tv_sec, 1000ul, &ms) &&
!__builtin_add_overflow(ms, ts.tv_usec, &ms)) {
return ms;
} else if (ts.tv_sec < 0) {
return INT64_MIN;
} else {
return INT64_MAX;
}
}

8
libc/integral/c.inc
View file

@ -608,10 +608,10 @@ typedef struct {
#endif
#endif
#define notpossible \
do { \
asm("ud2\n\tnop"); \
unreachable; \
#define notpossible \
do { \
asm("nop\n\tud2\n\tnop"); \
unreachable; \
} while (0)
#define donothing \

7
libc/intrin/describetimespec.c
View file

@ -21,6 +21,7 @@
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/str/str.h"
const char *(DescribeTimespec)(char buf[45], int rc,
const struct timespec *ts) {
@ -30,7 +31,11 @@ const char *(DescribeTimespec)(char buf[45], int rc,
(IsAsan() && !__asan_is_valid(ts, sizeof(*ts)))) {
ksnprintf(buf, 45, "%p", ts);
} else {
ksnprintf(buf, 45, "{%ld, %ld}", ts->tv_sec, ts->tv_nsec);
if (!memcmp(ts, &timespec_max, sizeof(*ts))) {
strcpy(buf, "timespec_max");
} else {
ksnprintf(buf, 45, "{%ld, %ld}", ts->tv_sec, ts->tv_nsec);
}
}
return buf;
}

7
libc/intrin/gettid.c
View file

@ -20,6 +20,7 @@
#include "libc/calls/state.internal.h"
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/intrin/atomic.h"
#include "libc/intrin/likely.h"
#include "libc/thread/tls.h"
/**
@ -36,9 +37,9 @@
*/
int gettid(void) {
int tid;
if (__tls_enabled && !__vforked) {
tid = atomic_load_explicit(&__get_tls()->tib_tid, memory_order_relaxed);
if (tid > 0) {
if (VERY_LIKELY(__tls_enabled && !__vforked)) {
tid = atomic_load_explicit(&__get_tls()->tib_tid, memory_order_acquire);
if (VERY_LIKELY(tid > 0)) {
return tid;
}
}

0
libc/intrin/intrin.h Executable file
View file

2
libc/sysv/calls/sys_sem_close.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_close,0x0fafff190210dfff,globl

2
libc/sysv/calls/sys_sem_destroy.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_destroy,0x0fffff198fffffff,globl

2
libc/sysv/calls/sys_sem_getvalue.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_getvalue,0x0fefff197fffffff,globl

2
libc/sysv/calls/sys_sem_init.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_init,0x0f7fff194fffffff,globl

2
libc/sysv/calls/sys_sem_open.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_open,0x0f8fff195210cfff,globl

2
libc/sysv/calls/sys_sem_post.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_post,0x0fbfff1912111fff,globl

2
libc/sysv/calls/sys_sem_timedwait.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_timedwait,0x900fff9b9fffffff,globl

2
libc/sysv/calls/sys_sem_trywait.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_trywait,0x0fdfff1932110fff,globl

2
libc/sysv/calls/sys_sem_unlink.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_unlink,0x0f9fff196210efff,globl

2
libc/sysv/calls/sys_sem_wait.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_wait,0x8fcfff992290ffff,globl

2
libc/sysv/calls/sys_sem_wait_nocancel.s Normal file
View file

@ -0,0 +1,2 @@
.include "o/libc/sysv/macros.internal.inc"
.scall sys_sem_wait_nocancel,0xfffffffff21a4fff,globl

76
libc/sysv/consts.sh
View file

@ -2094,44 +2094,44 @@ syscon nr __NR_ktrace 0xfff 0xfff 0x002d 0x002d 0x02d 0xfff
# unilateral undocumented errnos
#
# group name GNU/Systemd XNU's Not UNIX! FreeBSD OpenBSD NetBSD The New Technology Commentary
syscon junkerr ECHRNG 44 0 0 0 0 0
syscon junkerr EL2NSYNC 45 0 0 0 0 0
syscon junkerr EL3HLT 46 0 0 0 0 0
syscon junkerr EL3RST 47 0 0 0 0 0
syscon junkerr ELNRNG 48 0 0 0 0 0
syscon junkerr EUNATCH 49 0 0 0 0 0
syscon junkerr ENOCSI 50 0 0 0 0 0
syscon junkerr EL2HLT 51 0 0 0 0 0
syscon junkerr EBADE 52 0 0 0 0 0
syscon junkerr EBADR 53 0 0 0 0 0
syscon junkerr EXFULL 54 0 0 0 0 0
syscon junkerr ENOANO 55 0 0 0 0 0
syscon junkerr EBADRQC 56 0 0 0 0 0
syscon junkerr EBADSLT 57 0 0 0 0 0
syscon junkerr ENOPKG 65 0 0 0 0 0
syscon junkerr EADV 68 0 0 0 0 0
syscon junkerr ESRMNT 69 0 0 0 0 0
syscon junkerr ECOMM 70 0 0 0 0 0
syscon junkerr EDOTDOT 73 0 0 0 0 0
syscon junkerr ENOTUNIQ 76 0 0 0 0 0
syscon junkerr EREMCHG 78 0 0 0 0 0
syscon junkerr ELIBACC 79 0 0 0 0 0
syscon junkerr ELIBBAD 80 0 0 0 0 0
syscon junkerr ELIBSCN 81 0 0 0 0 0
syscon junkerr ELIBMAX 82 0 0 0 0 0
syscon junkerr ELIBEXEC 83 0 0 0 0 0
syscon junkerr ESTRPIPE 86 0 0 0 0 0
syscon junkerr EUCLEAN 117 0 0 0 0 0
syscon junkerr ENOTNAM 118 0 0 0 0 0
syscon junkerr ENAVAIL 119 0 0 0 0 0
syscon junkerr EISNAM 120 0 0 0 0 0
syscon junkerr EREMOTEIO 121 0 0 0 0 0
syscon junkerr ENOKEY 126 0 0 0 0 0
syscon junkerr EKEYEXPIRED 127 0 0 0 0 0
syscon junkerr EKEYREVOKED 128 0 0 0 0 0
syscon junkerr EKEYREJECTED 129 0 0 0 0 0
syscon junkerr ERFKILL 132 0 0 0 0 0
syscon junkerr EHWPOISON 133 0 0 0 0 0
syscon junkerr ECHRNG 44 -1 -1 -1 -1 -1
syscon junkerr EL2NSYNC 45 -1 -1 -1 -1 -1
syscon junkerr EL3HLT 46 -1 -1 -1 -1 -1
syscon junkerr EL3RST 47 -1 -1 -1 -1 -1
syscon junkerr ELNRNG 48 -1 -1 -1 -1 -1
syscon junkerr EUNATCH 49 -1 -1 -1 -1 -1
syscon junkerr ENOCSI 50 -1 -1 -1 -1 -1
syscon junkerr EL2HLT 51 -1 -1 -1 -1 -1
syscon junkerr EBADE 52 -1 -1 -1 -1 -1
syscon junkerr EBADR 53 -1 -1 -1 -1 -1
syscon junkerr EXFULL 54 -1 -1 -1 -1 -1
syscon junkerr ENOANO 55 -1 -1 -1 -1 -1
syscon junkerr EBADRQC 56 -1 -1 -1 -1 -1
syscon junkerr EBADSLT 57 -1 -1 -1 -1 -1
syscon junkerr ENOPKG 65 -1 -1 -1 -1 -1
syscon junkerr EADV 68 -1 -1 -1 -1 -1
syscon junkerr ESRMNT 69 -1 -1 -1 -1 -1
syscon junkerr ECOMM 70 -1 -1 -1 -1 -1
syscon junkerr EDOTDOT 73 -1 -1 -1 -1 -1
syscon junkerr ENOTUNIQ 76 -1 -1 -1 -1 -1
syscon junkerr EREMCHG 78 -1 -1 -1 -1 -1
syscon junkerr ELIBACC 79 -1 -1 -1 -1 -1
syscon junkerr ELIBBAD 80 -1 -1 -1 -1 -1
syscon junkerr ELIBSCN 81 -1 -1 -1 -1 -1
syscon junkerr ELIBMAX 82 -1 -1 -1 -1 -1
syscon junkerr ELIBEXEC 83 -1 -1 -1 -1 -1
syscon junkerr ESTRPIPE 86 -1 -1 -1 -1 -1
syscon junkerr EUCLEAN 117 -1 -1 -1 -1 -1
syscon junkerr ENOTNAM 118 -1 -1 -1 -1 -1
syscon junkerr ENAVAIL 119 -1 -1 -1 -1 -1
syscon junkerr EISNAM 120 -1 -1 -1 -1 -1
syscon junkerr EREMOTEIO 121 -1 -1 -1 -1 -1
syscon junkerr ENOKEY 126 -1 -1 -1 -1 -1
syscon junkerr EKEYEXPIRED 127 -1 -1 -1 -1 -1
syscon junkerr EKEYREVOKED 128 -1 -1 -1 -1 -1
syscon junkerr EKEYREJECTED 129 -1 -1 -1 -1 -1
syscon junkerr ERFKILL 132 -1 -1 -1 -1 -1
syscon junkerr EHWPOISON 133 -1 -1 -1 -1 -1
# arpanet fork combating human-induced exhaustion of our ipv4 address space
#

2
libc/sysv/consts/EADV.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EADV,68,0,0,0,0,0
.syscon junkerr,EADV,68,-1,-1,-1,-1,-1

2
libc/sysv/consts/EBADE.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EBADE,52,0,0,0,0,0
.syscon junkerr,EBADE,52,-1,-1,-1,-1,-1

2
libc/sysv/consts/EBADR.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EBADR,53,0,0,0,0,0
.syscon junkerr,EBADR,53,-1,-1,-1,-1,-1

2
libc/sysv/consts/EBADRQC.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EBADRQC,56,0,0,0,0,0
.syscon junkerr,EBADRQC,56,-1,-1,-1,-1,-1

2
libc/sysv/consts/EBADSLT.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EBADSLT,57,0,0,0,0,0
.syscon junkerr,EBADSLT,57,-1,-1,-1,-1,-1

2
libc/sysv/consts/ECHRNG.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ECHRNG,44,0,0,0,0,0
.syscon junkerr,ECHRNG,44,-1,-1,-1,-1,-1

2
libc/sysv/consts/ECOMM.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ECOMM,70,0,0,0,0,0
.syscon junkerr,ECOMM,70,-1,-1,-1,-1,-1

2
libc/sysv/consts/EDOTDOT.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EDOTDOT,73,0,0,0,0,0
.syscon junkerr,EDOTDOT,73,-1,-1,-1,-1,-1

2
libc/sysv/consts/EHWPOISON.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EHWPOISON,133,0,0,0,0,0
.syscon junkerr,EHWPOISON,133,-1,-1,-1,-1,-1

2
libc/sysv/consts/EISNAM.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EISNAM,120,0,0,0,0,0
.syscon junkerr,EISNAM,120,-1,-1,-1,-1,-1

2
libc/sysv/consts/EKEYEXPIRED.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EKEYEXPIRED,127,0,0,0,0,0
.syscon junkerr,EKEYEXPIRED,127,-1,-1,-1,-1,-1

2
libc/sysv/consts/EKEYREJECTED.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EKEYREJECTED,129,0,0,0,0,0
.syscon junkerr,EKEYREJECTED,129,-1,-1,-1,-1,-1

2
libc/sysv/consts/EKEYREVOKED.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EKEYREVOKED,128,0,0,0,0,0
.syscon junkerr,EKEYREVOKED,128,-1,-1,-1,-1,-1

2
libc/sysv/consts/EL2HLT.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EL2HLT,51,0,0,0,0,0
.syscon junkerr,EL2HLT,51,-1,-1,-1,-1,-1

2
libc/sysv/consts/EL2NSYNC.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EL2NSYNC,45,0,0,0,0,0
.syscon junkerr,EL2NSYNC,45,-1,-1,-1,-1,-1

2
libc/sysv/consts/EL3HLT.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EL3HLT,46,0,0,0,0,0
.syscon junkerr,EL3HLT,46,-1,-1,-1,-1,-1

2
libc/sysv/consts/EL3RST.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EL3RST,47,0,0,0,0,0
.syscon junkerr,EL3RST,47,-1,-1,-1,-1,-1

2
libc/sysv/consts/ELIBACC.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ELIBACC,79,0,0,0,0,0
.syscon junkerr,ELIBACC,79,-1,-1,-1,-1,-1

2
libc/sysv/consts/ELIBBAD.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ELIBBAD,80,0,0,0,0,0
.syscon junkerr,ELIBBAD,80,-1,-1,-1,-1,-1

2
libc/sysv/consts/ELIBEXEC.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ELIBEXEC,83,0,0,0,0,0
.syscon junkerr,ELIBEXEC,83,-1,-1,-1,-1,-1

2
libc/sysv/consts/ELIBMAX.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ELIBMAX,82,0,0,0,0,0
.syscon junkerr,ELIBMAX,82,-1,-1,-1,-1,-1

2
libc/sysv/consts/ELIBSCN.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ELIBSCN,81,0,0,0,0,0
.syscon junkerr,ELIBSCN,81,-1,-1,-1,-1,-1

2
libc/sysv/consts/ELNRNG.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ELNRNG,48,0,0,0,0,0
.syscon junkerr,ELNRNG,48,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENAVAIL.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENAVAIL,119,0,0,0,0,0
.syscon junkerr,ENAVAIL,119,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENOANO.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENOANO,55,0,0,0,0,0
.syscon junkerr,ENOANO,55,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENOCSI.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENOCSI,50,0,0,0,0,0
.syscon junkerr,ENOCSI,50,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENOKEY.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENOKEY,126,0,0,0,0,0
.syscon junkerr,ENOKEY,126,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENOPKG.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENOPKG,65,0,0,0,0,0
.syscon junkerr,ENOPKG,65,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENOTNAM.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENOTNAM,118,0,0,0,0,0
.syscon junkerr,ENOTNAM,118,-1,-1,-1,-1,-1

2
libc/sysv/consts/ENOTUNIQ.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ENOTUNIQ,76,0,0,0,0,0
.syscon junkerr,ENOTUNIQ,76,-1,-1,-1,-1,-1

2
libc/sysv/consts/EREMCHG.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EREMCHG,78,0,0,0,0,0
.syscon junkerr,EREMCHG,78,-1,-1,-1,-1,-1

2
libc/sysv/consts/EREMOTEIO.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EREMOTEIO,121,0,0,0,0,0
.syscon junkerr,EREMOTEIO,121,-1,-1,-1,-1,-1

2
libc/sysv/consts/ERFKILL.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ERFKILL,132,0,0,0,0,0
.syscon junkerr,ERFKILL,132,-1,-1,-1,-1,-1

2
libc/sysv/consts/ESRMNT.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ESRMNT,69,0,0,0,0,0
.syscon junkerr,ESRMNT,69,-1,-1,-1,-1,-1

2
libc/sysv/consts/ESTRPIPE.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,ESTRPIPE,86,0,0,0,0,0
.syscon junkerr,ESTRPIPE,86,-1,-1,-1,-1,-1

2
libc/sysv/consts/EUCLEAN.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EUCLEAN,117,0,0,0,0,0
.syscon junkerr,EUCLEAN,117,-1,-1,-1,-1,-1

2
libc/sysv/consts/EUNATCH.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EUNATCH,49,0,0,0,0,0
.syscon junkerr,EUNATCH,49,-1,-1,-1,-1,-1

2
libc/sysv/consts/EXFULL.s
View file

@ -1,2 +1,2 @@
.include "o/libc/sysv/consts/syscon.internal.inc"
.syscon junkerr,EXFULL,54,0,0,0,0,0
.syscon junkerr,EXFULL,54,-1,-1,-1,-1,-1

29
libc/sysv/syscalls.sh
View file

@ -428,6 +428,18 @@ scall sys_issetugid 0xfff0fd0fd2147fff globl hidden
scall sys_minherit 0x1110fa0fa20fafff globl # no wrapper
scall sys_pathconf 0x0bf0bf0bf20bffff globl # no wrapper
scall sys_sysctl 0x0ca0ca0ca20cafff globl # no wrapper
#──────────────────XNU & FREEBSD & NETBSD────────────────────
scall sys_sem_init 0x0f7fff194fffffff globl
scall sys_sem_destroy 0x0fffff198fffffff globl
scall sys_sem_open 0x0f8fff195210cfff globl
scall sys_sem_close 0x0fafff190210dfff globl
scall sys_sem_unlink 0x0f9fff196210efff globl
scall sys_sem_post 0x0fbfff1912111fff globl
scall sys_sem_wait 0x8fcfff992290ffff globl
scall sys_sem_trywait 0x0fdfff1932110fff globl
scall sys_sem_timedwait 0x900fff9b9fffffff globl
scall sys_sem_wait_nocancel 0xfffffffff21a4fff globl # no wrapper
scall sys_sem_getvalue 0x0fefff197fffffff globl
#───────────────────────XNU & FREEBSD────────────────────────
scall sys_ntp_adjtime 0x0b0fff0b0220ffff globl # no wrapper
scall sys_ntp_gettime 0x1c0fff0f82210fff globl # no wrapper
@ -597,13 +609,6 @@ scall sys_bsdthread_register 0xfffffffff216efff globl hidden
#scall renameatx_np 0xfffffffff21e8fff globl
#scall searchfs 0xfffffffff20e1fff globl
#scall select_nocancel 0xfffffffff2197fff globl
#scall sem_close 0xfffffffff210dfff globl
#scall sem_open 0xfffffffff210cfff globl
#scall sem_post 0xfffffffff2111fff globl
#scall sem_trywait 0xfffffffff2110fff globl
#scall sem_unlink 0xfffffffff210efff globl
#scall sem_wait 0xfffffffff210ffff globl
#scall sem_wait_nocancel 0xfffffffff21a4fff globl
#scall sendmsg_nocancel 0xfffffffff2192fff globl
#scall sendmsg_x 0xfffffffff21e1fff globl
#scall sendto_nocancel 0xfffffffff219dfff globl
@ -711,16 +716,6 @@ scall getpagesize_freebsd 0xffffff040fffffff globl hidden
#scall kmq_timedreceive 0xffffff1cbfffffff globl
#scall kmq_timedsend 0xffffff1ccfffffff globl
#scall kmq_unlink 0xffffff1cefffffff globl
#scall ksem_close 0xffffff190fffffff globl
#scall ksem_destroy 0xffffff198fffffff globl
#scall ksem_getvalue 0xffffff197fffffff globl
#scall ksem_init 0xffffff194fffffff globl
#scall ksem_open 0xffffff195fffffff globl
#scall ksem_post 0xffffff191fffffff globl
#scall ksem_timedwait 0xffffff1b9fffffff globl
#scall ksem_trywait 0xffffff193fffffff globl
#scall ksem_unlink 0xffffff196fffffff globl
#scall ksem_wait 0xffffff192fffffff globl
#scall lchflags 0x130fff187fffffff globl
#scall lchmod 0x112fff112fffffff globl
#scall lgetfh 0xffffff0a0fffffff globl

15
libc/thread/pthread_cancel.c
View file

@ -51,10 +51,10 @@ int _pthread_cancel_sys(void) {
return ecanceled();
}
static void OnSigCancel(int sig, siginfo_t *si, void *ctx) {
static void OnSigThr(int sig, siginfo_t *si, void *ctx) {
ucontext_t *uc = ctx;
struct CosmoTib *tib = __get_tls();
struct PosixThread *pt = (struct PosixThread *)tib->tib_pthread;
struct CosmoTib *t = __get_tls();
struct PosixThread *pt = (struct PosixThread *)t->tib_pthread;
if (pt && !(pt->flags & PT_NOCANCEL) &&
atomic_load_explicit(&pt->cancelled, memory_order_acquire)) {
sigaddset(&uc->uc_sigmask, sig);
@ -64,15 +64,14 @@ static void OnSigCancel(int sig, siginfo_t *si, void *ctx) {
} else if (pt->flags & PT_ASYNC) {
pthread_exit(PTHREAD_CANCELED);
} else {
__tkill(atomic_load_explicit(&tib->tib_tid, memory_order_relaxed), sig,
tib);
__tkill(atomic_load_explicit(&t->tib_tid, memory_order_relaxed), sig, t);
}
}
}
static void ListenForSigCancel(void) {
static void ListenForSigThr(void) {
struct sigaction sa;
sa.sa_sigaction = OnSigCancel;
sa.sa_sigaction = OnSigThr;
sa.sa_flags = SA_SIGINFO | SA_RESTART | SA_ONSTACK;
memset(&sa.sa_mask, -1, sizeof(sa.sa_mask));
_npassert(!sigaction(SIGTHR, &sa, 0));
@ -262,7 +261,7 @@ errno_t pthread_cancel(pthread_t thread) {
int e, rc, tid;
static bool once;
struct PosixThread *pt;
if (!once) ListenForSigCancel(), once = true;
if (!once) ListenForSigThr(), once = true;
pt = (struct PosixThread *)thread;
switch (atomic_load_explicit(&pt->status, memory_order_acquire)) {
case kPosixThreadZombie:

4
libc/thread/sem_init.c
View file

@ -35,13 +35,9 @@
* @param value is initial count of semaphore
* @return 0 on success, or -1 w/ errno
* @raise EINVAL if `value` exceeds `SEM_VALUE_MAX`
* @raise EPERM on OpenBSD if `pshared` is true
*/
int sem_init(sem_t *sem, int pshared, unsigned value) {
if (value > SEM_VALUE_MAX) return einval();
// OpenBSD MAP_ANONYMOUS|MAP_SHARED memory is kind of busted.
// The OpenBSD implementation of sem_init() also EPERMs here.
if (IsOpenbsd() && pshared) return eperm();
sem->sem_magic = SEM_MAGIC_UNNAMED;
atomic_store_explicit(&sem->sem_value, value, memory_order_relaxed);
sem->sem_pshared = !!pshared;

6
libc/thread/sem_open.c
View file

@ -209,7 +209,7 @@ sem_t *sem_open(const char *name, int oflag, ...) {
sem = SEM_FAILED;
} else if (~oflag & O_EXCL) {
sem = s->sem;
atomic_fetch_add_explicit(&sem->sem_prefs, 1, memory_order_acquire);
atomic_fetch_add_explicit(&sem->sem_prefs, 1, memory_order_acq_rel);
++s->refs;
} else {
eexist();
@ -218,7 +218,7 @@ sem_t *sem_open(const char *name, int oflag, ...) {
} else if ((s = calloc(1, sizeof(struct Semaphore)))) {
if ((s->path = strdup(path))) {
if ((sem = sem_open_impl(path, oflag, mode, value)) != SEM_FAILED) {
atomic_fetch_add_explicit(&sem->sem_prefs, 1, memory_order_relaxed);
atomic_fetch_add_explicit(&sem->sem_prefs, 1, memory_order_acq_rel);
s->next = g_semaphores.list;
s->sem = sem;
s->refs = 1;
@ -260,7 +260,7 @@ int sem_close(sem_t *sem) {
sem_open_init();
sem_open_lock();
_npassert((s = sem_open_get(sem, &p)));
prefs = atomic_fetch_add_explicit(&sem->sem_prefs, -1, memory_order_release);
prefs = atomic_fetch_add_explicit(&sem->sem_prefs, -1, memory_order_acq_rel);
_npassert(s->refs > 0);
if ((unmap = !--s->refs)) {
_npassert(prefs > 0);

23
libc/thread/sem_timedwait.c
View file

@ -33,26 +33,6 @@ static void sem_delay(int n) {
for (i = 0; i != 1 << n; i++) donothing;
}
// TODO(jart): This should be abstracted by polyfill.
static struct timespec *sem_timeout(struct timespec *memory,
const struct timespec *abstime) {
struct timespec now;
if (!abstime) {
return 0;
} else if (FUTEX_TIMEOUT_IS_ABSOLUTE) {
*memory = *abstime;
return memory;
} else {
now = timespec_real();
if (timespec_cmp(now, *abstime) > 0) {
*memory = (struct timespec){0};
} else {
*memory = timespec_sub(*abstime, now);
}
return memory;
}
}
static void sem_timedwait_cleanup(void *arg) {
sem_t *sem = arg;
_unassert(atomic_fetch_add_explicit(&sem->sem_waiters, -1,
@ -95,8 +75,7 @@ int sem_timedwait(sem_t *sem, const struct timespec *abstime) {
do {
if (!(v = atomic_load_explicit(&sem->sem_value, memory_order_relaxed))) {
rc = nsync_futex_wait_(&sem->sem_value, v, sem->sem_pshared,
sem_timeout(&ts, abstime));
rc = nsync_futex_wait_(&sem->sem_value, v, sem->sem_pshared, abstime);
if (rc == -EINTR || rc == -ECANCELED) {
errno = -rc;
rc = -1;

1
net/http/http.h
View file

@ -209,7 +209,6 @@ bool IsAcceptablePath(const char *, size_t);
bool IsAcceptableHost(const char *, size_t);
bool IsAcceptablePort(const char *, size_t);
bool IsReasonablePath(const char *, size_t);
int64_t ParseIp(const char *, size_t);
int ParseForwarded(const char *, size_t, uint32_t *, uint16_t *);
bool IsMimeType(const char *, size_t, const char *);
ssize_t Unchunk(struct HttpUnchunker *, char *, size_t, size_t *);

7
net/http/ip.h
View file

@ -25,6 +25,13 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
struct Cidr {
int64_t addr;
int cidr;
};
int64_t ParseIp(const char *, size_t);
struct Cidr ParseCidr(const char *, size_t);
bool IsDodIp(uint32_t);
bool IsArinIp(uint32_t);
bool IsRipeIp(uint32_t);

67
net/http/parsecidr.c Normal file
View file

@ -0,0 +1,67 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/str/str.h"
#include "net/http/ip.h"
/**
* Parse IPv4 network address.
*
* For example, a router address might be `10.10.10.1/24` in which case
* the IP address word `0x0a0a0a01` would be returned, whose CIDR would
* be 24. That means your IP address is on a network with 24 bits which
* converts to a netmask `0xffffff00` by using `1u << (32 - res.cidr)`.
* You may specify the IP address portion as an integer. As an example,
* the value `168430081/1` would be the same as `10.10.10.1/1`
*
* @param n if -1 implies strlen
* @return ip is uint32 IPv4 address, or -1 on failure
* @return cidr is number of bits in network, on interval [1,32]; it
* defaults to 32; if the return ip is -1 then cidr is undefined
*/
struct Cidr ParseCidr(const char *s, size_t n) {
size_t i;
const char *p;
struct Cidr c;
if (n == -1) n = s ? strlen(s) : 0;
if ((p = strchr(s, '/'))) {
if ((c.addr = ParseIp(s, (i = p - s))) != -1) {
c.cidr = 0;
for (++i; i < n; ++i) {
if (isdigit(s[i])) {
c.cidr *= 10;
c.cidr += s[i] - '0';
if (c.cidr > 32) {
c.cidr = -1;
break;
}
} else {
c.cidr = -1;
break;
}
}
if (c.cidr <= 0) {
c.addr = -1;
}
}
} else {
c.addr = ParseIp(s, n);
c.cidr = 32;
}
return c;
}

18
net/http/parseip.c
View file

@ -17,27 +17,33 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/str/str.h"
#include "net/http/http.h"
#include "net/http/ip.h"
/**
* Parse IPv4 address.
* Parse IPv4 host address.
*
* @param n if -1 implies strlen
* @return -1 on failure, otherwise 32-bit host-order unsigned integer
* @see ParseCidr()
*/
int64_t ParseIp(const char *s, size_t n) {
int c, j;
size_t i;
uint32_t x;
int b, c, j;
unsigned b, x;
bool dotted = false;
if (n == -1) n = s ? strlen(s) : 0;
if (!n) return -1;
for (b = x = j = i = 0; i < n; ++i) {
c = s[i] & 255;
if (isdigit(c)) {
b *= 10;
b += c - '0';
if (__builtin_mul_overflow(b, 10, &b) || //
__builtin_add_overflow(b, c - '0', &b) || //
(b > 255 && dotted)) {
return -1;
}
} else if (c == '.') {
if (b > 255) return -1;
dotted = true;
x <<= 8;
x |= b;
b = 0;

1
net/turfwar/blackhole.c
View file

@ -28,6 +28,7 @@
#include "libc/sysv/consts/ex.h"
#include "libc/sysv/consts/sock.h"
#include "net/http/http.h"
#include "net/http/ip.h"
int main(int argc, char *argv[]) {

4
test/libc/calls/sigaction_test.c
View file

@ -228,11 +228,13 @@ TEST(uc_sigmask, signalHandlerCanChangeSignalMaskOfTrappedThread) {
struct sigaction oldsa;
struct sigaction sa = {.sa_sigaction = OnSigMask, .sa_flags = SA_SIGINFO};
sigemptyset(&want);
ASSERT_SYS(0, 0, sigprocmask(SIG_SETMASK, &want, 0));
ASSERT_SYS(0, 0, sigprocmask(SIG_SETMASK, &want, &got));
ASSERT_FALSE(sigismember(&got, SIGUSR1));
ASSERT_SYS(0, 0, sigaction(SIGUSR1, &sa, &oldsa));
ASSERT_SYS(0, 0, raise(SIGUSR1));
ASSERT_TRUE(gotusr1);
ASSERT_SYS(0, 0, sigprocmask(SIG_SETMASK, 0, &got));
ASSERT_TRUE(sigismember(&got, SIGUSR1));
sigaddset(&want, SIGUSR1);
ASSERT_STREQ(DescribeSigset(0, &want), DescribeSigset(0, &got));
ASSERT_SYS(0, 0, sigaction(SIGUSR1, &oldsa, 0));

1
test/libc/intrin/test.mk
View file

@ -34,6 +34,7 @@ TEST_LIBC_INTRIN_DIRECTDEPS = \
LIBC_STR \
LIBC_STUBS \
LIBC_SYSV \
LIBC_SYSV_CALLS \
LIBC_THREAD \
LIBC_TESTLIB \
LIBC_TINYMATH \

30
test/libc/stdio/popen_test.c
View file

@ -22,7 +22,9 @@
#include "libc/errno.h"
#include "libc/fmt/fmt.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/kprintf.h"
#include "libc/limits.h"
#include "libc/log/log.h"
#include "libc/mem/gc.h"
#include "libc/mem/mem.h"
#include "libc/runtime/runtime.h"
@ -39,6 +41,23 @@ FILE *f;
char buf[32];
char testlib_enable_tmp_setup_teardown;
void CheckForFdLeaks(void) {
int rc, i, l = 0, e = errno;
for (i = 3; i < 16; ++i) {
rc = fcntl(i, F_GETFL);
if (rc == -1) {
ASSERT_EQ(EBADF, errno);
errno = e;
} else {
kprintf("file descriptor %d leaked!\n", i);
++l;
}
}
if (l) {
__die();
}
}
TEST(popen, command) {
char foo[6];
testlib_extract("/zip/echo.com", "echo.com", 0755);
@ -46,6 +65,7 @@ TEST(popen, command) {
ASSERT_NE(NULL, fgets(foo, sizeof(foo), f));
ASSERT_STREQ("hello", foo);
ASSERT_EQ(0, pclose(f));
CheckForFdLeaks();
}
TEST(popen, semicolon) {
@ -53,6 +73,7 @@ TEST(popen, semicolon) {
ASSERT_STREQ("hello\n", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("there\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
CheckForFdLeaks();
}
TEST(popen, singleQuotes) {
@ -61,6 +82,7 @@ TEST(popen, singleQuotes) {
ASSERT_STREQ("hello $there\n", fgets(buf, sizeof(buf), f));
ASSERT_STREQ("yo\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
CheckForFdLeaks();
}
TEST(popen, doubleQuotes) {
@ -68,6 +90,7 @@ TEST(popen, doubleQuotes) {
ASSERT_NE(NULL, (f = popen("echo -l \"$hello there\"", "r")));
ASSERT_STREQ("a b c there\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
CheckForFdLeaks();
}
TEST(popen, quoteless) {
@ -77,6 +100,7 @@ TEST(popen, quoteless) {
ASSERT_STREQ("aa b c\n", fgets(buf, sizeof(buf), f)); // mixed feelings
ASSERT_STREQ("yo\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
CheckForFdLeaks();
}
TEST(popen, pipe) {
@ -84,6 +108,7 @@ TEST(popen, pipe) {
ASSERT_NE(NULL, (f = popen("echo hello | toupper", "r")));
ASSERT_STREQ("HELLO\n", fgets(buf, sizeof(buf), f));
ASSERT_EQ(0, pclose(f));
CheckForFdLeaks();
}
sig_atomic_t gotsig;
@ -102,6 +127,7 @@ TEST(popen, complicated) {
ASSERT_EQ(0, pclose(f));
ASSERT_EQ(1, gotsig);
signal(SIGUSR1, SIG_DFL);
CheckForFdLeaks();
}
void *Worker(void *arg) {
@ -129,10 +155,10 @@ void *Worker(void *arg) {
}
TEST(popen, torture) {
int i, n = 8;
int i, n = 4;
pthread_t *t = _gc(malloc(sizeof(pthread_t) * n));
testlib_extract("/zip/echo.com", "echo.com", 0755);
for (i = 0; i < n; ++i) ASSERT_EQ(0, pthread_create(t + i, 0, Worker, 0));
for (i = 0; i < n; ++i) ASSERT_EQ(0, pthread_join(t[i], 0));
for (i = 3; i < 16; ++i) ASSERT_SYS(EBADF, -1, fcntl(i, F_GETFL));
CheckForFdLeaks();
}

6
test/libc/thread/sem_timedwait_test.c
View file

@ -170,12 +170,6 @@ TEST(sem_timedwait, threads) {
TEST(sem_timedwait, processes) {
int i, r, rc, n = 4, pshared = 1;
sem_t *sm = _mapshared(FRAMESIZE), *s[2] = {sm, sm + 1};
if (IsOpenbsd()) {
// TODO(jart): why?
ASSERT_SYS(EPERM, -1, sem_init(s[0], pshared, 0));
ASSERT_SYS(0, 0, munmap(sm, FRAMESIZE));
return;
}
ASSERT_SYS(0, 0, sem_init(s[0], pshared, 0));
ASSERT_SYS(0, 0, sem_init(s[1], pshared, 0));
for (i = 0; i < n; ++i) {

59
test/net/http/parsecidr_test.c Normal file
View file

@ -0,0 +1,59 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2022 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/testlib/testlib.h"
#include "net/http/ip.h"
TEST(ParseCidr, test) {
struct Cidr in;
in = ParseCidr("10.10.10.1/24", -1);
EXPECT_EQ(0x0a0a0a01, in.addr);
EXPECT_EQ(24, in.cidr);
in = ParseCidr("168430081/1", -1);
EXPECT_EQ(0x0a0a0a01, in.addr);
EXPECT_EQ(1, in.cidr);
}
TEST(ParseCidr, noCidr_defaultsTo32) {
struct Cidr in;
in = ParseCidr("10.10.10.255", -1);
EXPECT_EQ(0x0a0a0aff, in.addr);
EXPECT_EQ(32, in.cidr);
}
TEST(ParseCidr, badIp_returnsNeg1) {
struct Cidr in;
in = ParseCidr("10.10.10.a", -1);
EXPECT_EQ(-1, in.addr);
in = ParseCidr("10.10.10.256", -1);
EXPECT_EQ(-1, in.addr);
in = ParseCidr("10.10.10.256/24", -1);
EXPECT_EQ(-1, in.addr);
}
TEST(ParseCidr, badCidr_returnsNeg1) {
struct Cidr in;
in = ParseCidr("10.10.10.1/", -1);
EXPECT_EQ(-1, in.addr);
in = ParseCidr("10.10.10.1/a", -1);
EXPECT_EQ(-1, in.addr);
in = ParseCidr("10.10.10.1/0", -1);
EXPECT_EQ(-1, in.addr);
in = ParseCidr("10.10.10.1/33", -1);
EXPECT_EQ(-1, in.addr);
}

4
test/net/http/parseip_test.c
View file

@ -17,7 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/testlib/testlib.h"
#include "net/http/http.h"
#include "net/http/ip.h"
TEST(ParseIp, test) {
EXPECT_EQ(-1, ParseIp("", -1));
@ -30,6 +30,8 @@ TEST(ParseIp, test) {
EXPECT_EQ(0x00000000, ParseIp("...", -1)); /* meh */
EXPECT_EQ(0x80000304, ParseIp("128.0.3.4", -1));
EXPECT_EQ(0x80000304, ParseIp("128..3.4", -1));
EXPECT_EQ(-1, ParseIp("4294967296", -1));
EXPECT_EQ(-1, ParseIp("255.255.255.256", -1));
EXPECT_EQ(-1, ParseIp("256.255.255.255", -1));
EXPECT_EQ(-1, ParseIp("hello", -1));
EXPECT_EQ(-1, ParseIp("hello\177", -1));

1
test/net/http/parseurl_test.c
View file

@ -26,6 +26,7 @@
#include "libc/testlib/hyperion.h"
#include "libc/testlib/testlib.h"
#include "net/http/http.h"
#include "net/http/ip.h"
#include "net/http/url.h"
TEST(ParseUrl, testEmpty) {

8
third_party/lua/lunix.c vendored
View file

@ -2847,14 +2847,6 @@ static int LuaUnixMemoryWait(lua_State *L) {
} else {
ts.tv_sec = luaL_checkinteger(L, 4);
ts.tv_nsec = luaL_optinteger(L, 5, 0);
if (!FUTEX_TIMEOUT_IS_ABSOLUTE) {
now = timespec_real();
if (timespec_cmp(now, ts) > 0) {
ts = (struct timespec){0};
} else {
ts = timespec_sub(ts, now);
}
}
deadline = &ts;
}
BEGIN_CANCELLATION_POINT;

3
third_party/mbedtls/x509_crt.c vendored
View file

@ -15,17 +15,18 @@
│ See the License for the specific language governing permissions and │
│ limitations under the License. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/bits.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/dirent.h"
#include "libc/calls/struct/stat.h"
#include "libc/fmt/fmt.h"
#include "libc/intrin/bits.h"
#include "libc/limits.h"
#include "libc/log/log.h"
#include "libc/mem/mem.h"
#include "libc/stdio/stdio.h"
#include "libc/sysv/consts/s.h"
#include "net/http/http.h"
#include "net/http/ip.h"
#include "third_party/mbedtls/common.h"
#include "third_party/mbedtls/error.h"
#include "third_party/mbedtls/oid.h"

50
third_party/nsync/futex.c vendored
View file

@ -28,7 +28,6 @@
#include "libc/errno.h"
#include "libc/intrin/atomic.h"
#include "libc/intrin/describeflags.internal.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/limits.h"
@ -56,8 +55,8 @@ int sys_futex_cp (atomic_int *, int, int, const struct timespec *, int *, int);
static int FUTEX_WAIT_;
static int FUTEX_PRIVATE_FLAG_;
static bool FUTEX_IS_SUPPORTED;
bool FUTEX_TIMEOUT_IS_ABSOLUTE;
static bool futex_is_supported;
static bool futex_timeout_is_relative;
__attribute__((__constructor__)) static void nsync_futex_init_ (void) {
atomic_int x;
@ -65,20 +64,17 @@ __attribute__((__constructor__)) static void nsync_futex_init_ (void) {
FUTEX_WAIT_ = FUTEX_WAIT;
if (IsWindows ()) {
FUTEX_IS_SUPPORTED = true;
FUTEX_TIMEOUT_IS_ABSOLUTE = true;
futex_is_supported = true;
return;
}
if (IsFreebsd ()) {
FUTEX_IS_SUPPORTED = true;
FUTEX_TIMEOUT_IS_ABSOLUTE = true;
futex_is_supported = true;
FUTEX_PRIVATE_FLAG_ = FUTEX_PRIVATE_FLAG;
return;
}
if (!(FUTEX_IS_SUPPORTED = IsLinux () || IsOpenbsd ())) {
FUTEX_TIMEOUT_IS_ABSOLUTE = true;
if (!(futex_is_supported = IsLinux () || IsOpenbsd ())) {
return;
}
@ -98,20 +94,20 @@ __attribute__((__constructor__)) static void nsync_futex_init_ (void) {
1, 0, 0, FUTEX_BITSET_MATCH_ANY) == -EAGAIN) {
FUTEX_WAIT_ = FUTEX_WAIT_BITSET | FUTEX_CLOCK_REALTIME;
FUTEX_PRIVATE_FLAG_ = FUTEX_PRIVATE_FLAG;
FUTEX_TIMEOUT_IS_ABSOLUTE = true;
} else if (!IsTiny () && IsLinux () &&
_futex (&x, FUTEX_WAIT_BITSET, 1, 0, 0,
FUTEX_BITSET_MATCH_ANY) == -EAGAIN) {
FUTEX_WAIT_ = FUTEX_WAIT_BITSET;
FUTEX_PRIVATE_FLAG_ = FUTEX_PRIVATE_FLAG;
FUTEX_TIMEOUT_IS_ABSOLUTE = true;
} else if (IsOpenbsd () ||
(!IsTiny () && IsLinux () &&
!_futex_wake (&x, FUTEX_WAKE_PRIVATE, 1))) {
FUTEX_WAIT_ = FUTEX_WAIT;
FUTEX_PRIVATE_FLAG_ = FUTEX_PRIVATE_FLAG;
futex_timeout_is_relative = true;
} else {
FUTEX_WAIT_ = FUTEX_WAIT;
futex_timeout_is_relative = true;
}
}
@ -123,10 +119,8 @@ static int nsync_futex_polyfill_ (atomic_int *w, int expect, struct timespec *ti
ts = timespec_real ();
if (!timeout) {
deadline = timespec_max;
} else if (FUTEX_TIMEOUT_IS_ABSOLUTE) {
deadline = *timeout;
} else {
deadline = timespec_add (ts, *timeout);
deadline = *timeout;
}
nanos = 100;
@ -186,9 +180,29 @@ static int nsync_futex_wait_win32_ (atomic_int *w, int expect, char pshare, stru
return rc;
}
int nsync_futex_wait_ (atomic_int *w, int expect, char pshare, struct timespec *timeout) {
static struct timespec *nsync_futex_timeout_ (struct timespec *memory,
const struct timespec *abstime) {
struct timespec now;
if (!abstime) {
return 0;
} else if (!futex_timeout_is_relative) {
*memory = *abstime;
return memory;
} else {
now = timespec_real ();
if (timespec_cmp (now, *abstime) > 0) {
*memory = (struct timespec){0};
} else {
*memory = timespec_sub (*abstime, now);
}
return memory;
}
}
int nsync_futex_wait_ (atomic_int *w, int expect, char pshare, struct timespec *abstime) {
int e, rc, op, fop;
struct PosixThread *pt = 0;
struct timespec tsmem, *timeout;
if (atomic_load_explicit (w, memory_order_acquire) != expect) {
return -EAGAIN;
@ -199,12 +213,14 @@ int nsync_futex_wait_ (atomic_int *w, int expect, char pshare, struct timespec *
op |= FUTEX_PRIVATE_FLAG_;
}
timeout = nsync_futex_timeout_ (&tsmem, abstime);
LOCKTRACE ("futex(%t [%d], %s, %#x, %s) → ...",
w, atomic_load_explicit (w, memory_order_relaxed),
DescribeFutexOp (op), expect,
DescribeTimespec (0, timeout));
if (FUTEX_IS_SUPPORTED) {
if (futex_is_supported) {
e = errno;
if (IsWindows ()) {
// Windows 8 futexes don't support multiple processes :(
@ -270,7 +286,7 @@ int nsync_futex_wake_ (atomic_int *w, int count, char pshare) {
op |= FUTEX_PRIVATE_FLAG_;
}
if (FUTEX_IS_SUPPORTED) {
if (futex_is_supported) {
if (IsWindows ()) {
if (pshare) {
goto Polyfill;

2
third_party/nsync/futex.internal.h vendored
View file

@ -5,8 +5,6 @@
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern bool FUTEX_TIMEOUT_IS_ABSOLUTE;
int nsync_futex_wake_(_Atomic(int) *, int, char);
int nsync_futex_wait_(_Atomic(int) *, int, char, struct timespec *);

119
third_party/nsync/mu_semaphore.c vendored
View file

@ -15,16 +15,9 @@
│ See the License for the specific language governing permissions and │
│ limitations under the License. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/errno.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/weaken.h"
#include "libc/str/str.h"
#include "libc/thread/thread.h"
#include "third_party/nsync/atomic.h"
#include "third_party/nsync/atomic.internal.h"
#include "third_party/nsync/futex.internal.h"
#include "libc/dce.h"
#include "third_party/nsync/mu_semaphore.h"
#include "third_party/nsync/mu_semaphore.internal.h"
asm(".ident\t\"\\n\\n\
*NSYNC (Apache 2.0)\\n\
@ -32,108 +25,40 @@ Copyright 2016 Google, Inc.\\n\
https://github.com/google/nsync\"");
// clang-format off
#define ASSERT(x) _npassert(x)
/* Check that atomic operations on nsync_atomic_uint32_ can be applied to int. */
static const int assert_int_size = 1 /
(sizeof (assert_int_size) == sizeof (uint32_t) &&
sizeof (nsync_atomic_uint32_) == sizeof (uint32_t));
struct futex {
int i; /* lo half=count; hi half=waiter count */
};
static nsync_semaphore *sem_big_enough_for_futex = (nsync_semaphore *) (uintptr_t)(1 /
(sizeof (struct futex) <= sizeof (*sem_big_enough_for_futex)));
/* Initialize *s; the initial value is 0. */
void nsync_mu_semaphore_init (nsync_semaphore *s) {
struct futex *f = (struct futex *) s;
f->i = 0;
if (IsNetbsd ()) {
return nsync_mu_semaphore_init_sem (s);
} else {
return nsync_mu_semaphore_init_futex (s);
}
}
/* Wait until the count of *s exceeds 0, and decrement it. */
errno_t nsync_mu_semaphore_p (nsync_semaphore *s) {
struct futex *f = (struct futex *) s;
int i;
int result = 0;
do {
i = ATM_LOAD ((nsync_atomic_uint32_ *) &f->i);
if (i == 0) {
int futex_result = nsync_futex_wait_ (
(atomic_int *)&f->i, i, PTHREAD_PROCESS_PRIVATE, NULL);
ASSERT (futex_result == 0 ||
futex_result == -EINTR ||
futex_result == -EAGAIN ||
futex_result == -ECANCELED ||
futex_result == -EWOULDBLOCK);
if (futex_result == -ECANCELED) {
result = ECANCELED;
}
}
} while (result == 0 && (i == 0 || !ATM_CAS_ACQ ((nsync_atomic_uint32_ *) &f->i, i, i-1)));
return result;
if (IsNetbsd ()) {
return nsync_mu_semaphore_p_sem (s);
} else {
return nsync_mu_semaphore_p_futex (s);
}
}
/* Wait until one of:
the count of *s is non-zero, in which case decrement *s and return 0;
or abs_deadline expires, in which case return ETIMEDOUT. */
errno_t nsync_mu_semaphore_p_with_deadline (nsync_semaphore *s, nsync_time abs_deadline) {
struct futex *f = (struct futex *)s;
int i;
int result = 0;
do {
i = ATM_LOAD ((nsync_atomic_uint32_ *) &f->i);
if (i == 0) {
int futex_result;
struct timespec ts_buf;
const struct timespec *ts = NULL;
if (nsync_time_cmp (abs_deadline, nsync_time_no_deadline) != 0) {
memset (&ts_buf, 0, sizeof (ts_buf));
if (FUTEX_TIMEOUT_IS_ABSOLUTE) {
ts_buf.tv_sec = NSYNC_TIME_SEC (abs_deadline);
ts_buf.tv_nsec = NSYNC_TIME_NSEC (abs_deadline);
} else {
nsync_time now;
now = nsync_time_now ();
if (nsync_time_cmp (now, abs_deadline) > 0) {
ts_buf.tv_sec = 0;
ts_buf.tv_nsec = 0;
} else {
nsync_time rel_deadline;
rel_deadline = nsync_time_sub (abs_deadline, now);
ts_buf.tv_sec = NSYNC_TIME_SEC (rel_deadline);
ts_buf.tv_nsec = NSYNC_TIME_NSEC (rel_deadline);
}
}
ts = &ts_buf;
}
futex_result = nsync_futex_wait_ ((atomic_int *)&f->i, i, PTHREAD_PROCESS_PRIVATE, ts);
ASSERT (futex_result == 0 ||
futex_result == -EINTR ||
futex_result == -EAGAIN ||
futex_result == -ECANCELED ||
futex_result == -ETIMEDOUT ||
futex_result == -EWOULDBLOCK);
/* Some systems don't wait as long as they are told. */
if (futex_result == -ETIMEDOUT &&
nsync_time_cmp (abs_deadline, nsync_time_now ()) <= 0) {
result = ETIMEDOUT;
}
if (futex_result == -ECANCELED) {
result = ECANCELED;
}
}
} while (result == 0 && (i == 0 || !ATM_CAS_ACQ ((nsync_atomic_uint32_ *) &f->i, i, i - 1)));
return (result);
if (IsNetbsd ()) {
return nsync_mu_semaphore_p_with_deadline_sem (s, abs_deadline);
} else {
return nsync_mu_semaphore_p_with_deadline_futex (s, abs_deadline);
}
}
/* Ensure that the count of *s is at least 1. */
void nsync_mu_semaphore_v (nsync_semaphore *s) {
struct futex *f = (struct futex *) s;
uint32_t old_value;
do {
old_value = ATM_LOAD ((nsync_atomic_uint32_ *) &f->i);
} while (!ATM_CAS_REL ((nsync_atomic_uint32_ *) &f->i, old_value, old_value+1));
ASSERT (nsync_futex_wake_ ((atomic_int *)&f->i, 1, PTHREAD_PROCESS_PRIVATE) >= 0);
if (IsNetbsd ()) {
return nsync_mu_semaphore_v_sem (s);
} else {
return nsync_mu_semaphore_v_futex (s);
}
}

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