mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
9b29358511
Status lines for Emacs and Vim have been added to Python sources so they'll be easier to edit using Python's preferred coding style. Some DNS helper functions have been broken up into multiple files. It's nice to have one function per file whenever possible, since that way we don't need -ffunction-sections. Another reason it's good to have small source files, is because the build will be enforcing resource limits on compilation and testing soon.
53 lines
3.2 KiB
C
53 lines
3.2 KiB
C
/*-*- 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│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ This is free and unencumbered software released into the public domain. │
|
|
│ │
|
|
│ Anyone is free to copy, modify, publish, use, compile, sell, or │
|
|
│ distribute this software, either in source code form or as a compiled │
|
|
│ binary, for any purpose, commercial or non-commercial, and by any │
|
|
│ means. │
|
|
│ │
|
|
│ In jurisdictions that recognize copyright laws, the author or authors │
|
|
│ of this software dedicate any and all copyright interest in the │
|
|
│ software to the public domain. We make this dedication for the benefit │
|
|
│ of the public at large and to the detriment of our heirs and │
|
|
│ successors. We intend this dedication to be an overt act of │
|
|
│ relinquishment in perpetuity of all present and future rights to this │
|
|
│ software under copyright law. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
|
|
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
|
|
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
|
|
│ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR │
|
|
│ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, │
|
|
│ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR │
|
|
│ OTHER DEALINGS IN THE SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/dns/ent.h"
|
|
#include "libc/dns/servicestxt.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/str/str.h"
|
|
|
|
struct servent *getservbyname(const char *name, const char *proto) {
|
|
static struct servent *ptr0, se0;
|
|
static char s_name[DNS_NAME_MAX + 1];
|
|
static char localproto[DNS_NAME_MAX + 1];
|
|
int p;
|
|
if (!ptr0) {
|
|
se0.s_name = s_name;
|
|
if (!(se0.s_aliases = calloc(1, sizeof(char *)))) return NULL;
|
|
se0.s_port = 0;
|
|
se0.s_proto = localproto;
|
|
ptr0 = &se0;
|
|
}
|
|
if (proto) {
|
|
if (!memccpy(localproto, proto, '\0', DNS_NAME_MAX)) return NULL;
|
|
} else
|
|
strcpy(localproto, "");
|
|
p = LookupServicesByName(name, ptr0->s_proto, DNS_NAME_MAX, ptr0->s_name,
|
|
DNS_NAME_MAX, NULL);
|
|
if (p == -1) return NULL;
|
|
ptr0->s_port = htons(p);
|
|
return ptr0;
|
|
}
|