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Add unix domain socket support to redbean

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Justine Tunney 2022-06-22 03:04:25 -07:00
parent 4b23985b7f
commit fc097ac275
25 changed files with 594 additions and 172 deletions
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66
libc/sock/sockaddr2bsd.c Normal file
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/*-*- 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/sock/internal.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/errfuns.h"
/**
* Converts sockaddr (Linux/Windows) → sockaddr_bsd (XNU/BSD).
*/
int sockaddr2bsd(const void *addr, uint32_t addrsize,
union sockaddr_storage_bsd *out_addr, uint32_t *out_addrsize) {
uint32_t len, famsize;
if (addrsize >= sizeof(((struct sockaddr *)addr)->sa_family)) {
if (((struct sockaddr *)addr)->sa_family == AF_INET) {
if (addrsize >= sizeof(struct sockaddr_in)) {
out_addr->sin.sin_len = 0;
out_addr->sin.sin_family = AF_INET;
out_addr->sin.sin_port = ((struct sockaddr_in *)addr)->sin_port;
out_addr->sin.sin_addr = ((struct sockaddr_in *)addr)->sin_addr;
bzero(&out_addr->sin.sin_zero, sizeof(out_addr->sin.sin_zero));
*out_addrsize = sizeof(struct sockaddr_in_bsd);
return 0;
} else {
return einval();
}
} else if (((struct sockaddr *)addr)->sa_family == AF_UNIX) {
famsize = sizeof(((struct sockaddr_un *)addr)->sun_family);
if (addrsize >= famsize &&
(len = strnlen(((struct sockaddr_un *)addr)->sun_path,
addrsize - famsize)) <
sizeof(out_addr->sun.sun_path)) {
out_addr->sun.sun_len = 0;
out_addr->sun.sun_family = AF_UNIX;
memcpy(out_addr->sun.sun_path, ((struct sockaddr_un *)addr)->sun_path,
len);
out_addr->sun.sun_path[len] = 0;
*out_addrsize = sizeof(out_addr->sun.sun_len) +
sizeof(out_addr->sun.sun_family) + len;
return 0;
} else {
return einval();
}
} else {
return epfnosupport();
}
} else {
return einval();
}
}