mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-27 06:48:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Add sys_ prefix to unwrapped system calls

Browse source 
This change also implements getlogin() and getlogin_r().
This commit is contained in:
Justine Tunney 2022-09-13 11:20:35 -07:00
parent 8f5678882d
commit aab4ee4072
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
811 changed files with 1112 additions and 1796 deletions
Download patch file Download diff file Expand all files Collapse all files

61
libc/runtime/getlogin_r.c Normal file
View file

@ -0,0 +1,61 @@
/*-*- 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/syscall_support-nt.internal.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/strace.internal.h"
#include "libc/macros.internal.h"
#include "libc/nt/accounting.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/errfuns.h"
int sys_getlogin(char *, uint32_t);
/**
* Returns login name.
*/
int getlogin_r(char *buf, size_t size) {
int rc;
uint32_t n32;
const char *p;
char16_t buf16[257];
if (IsBsd()) {
rc = sys_getlogin(buf, size);
} else if (IsWindows()) {
n32 = ARRAYLEN(buf16);
if (GetUserName(&buf16, &n32)) {
tprecode16to8(buf, sizeof(size), buf16);
rc = 0;
} else {
rc = __winerr();
}
} else if ((p = getenv("LOGNAME"))) {
if (strlen(p) < size) {
strcpy(buf, p);
rc = 0;
} else {
rc = enomem();
}
} else {
rc = enoent();
}
STRACE("getlogin_r([%#s], %'zu) → %d% m", rc != -1 ? buf : "n/a", size, rc);
return rc;
}