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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
71 lines
3.6 KiB
C
71 lines
3.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ This is free and unencumbered software released into the public domain. │
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│ │
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│ Anyone is free to copy, modify, publish, use, compile, sell, or │
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│ distribute this software, either in source code form or as a compiled │
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│ binary, for any purpose, commercial or non-commercial, and by any │
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│ means. │
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│ │
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│ In jurisdictions that recognize copyright laws, the author or authors │
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│ of this software dedicate any and all copyright interest in the │
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│ software to the public domain. We make this dedication for the benefit │
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│ of the public at large and to the detriment of our heirs and │
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│ successors. We intend this dedication to be an overt act of │
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│ relinquishment in perpetuity of all present and future rights to this │
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│ software under copyright law. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
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│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
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│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
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│ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR │
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│ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, │
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│ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR │
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│ OTHER DEALINGS IN THE SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dns/ent.h"
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#include "libc/mem/mem.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/af.h"
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struct hostent *gethostbyname(const char *name) {
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static struct hostent *ptr0, he0;
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static char h_name[DNS_NAME_MAX + 1];
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static char *h_aliases[1];
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static char *h_addr_list[2];
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static char h_addr_list0[4];
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struct addrinfo *result = NULL;
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if (!ptr0) {
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he0.h_name = h_name;
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he0.h_aliases = h_aliases;
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he0.h_aliases[0] = NULL;
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he0.h_addrtype = AF_INET;
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he0.h_length = 4;
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he0.h_addr_list = h_addr_list;
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he0.h_addr_list[0] = h_addr_list0;
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he0.h_addr_list[1] = NULL;
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ptr0 = &he0;
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}
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if (getaddrinfo(name, NULL, NULL, &result) || result == NULL) {
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return NULL;
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}
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/* if getaddrinfo is successful, result->ai_canonname is non-NULL,
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* (see newaddrinfo) but the string can still be empty */
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strlcpy(ptr0->h_name, *result->ai_canonname ? result->ai_canonname : name,
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sizeof(h_name));
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*((uint32_t *)ptr0->h_addr_list[0]) = result->ai_addr4->sin_addr.s_addr;
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/* TODO: if result has ai_next, fit multiple entries for h_addr_list */
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freeaddrinfo(result);
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return ptr0;
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}
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