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https://github.com/jart/cosmopolitan.git
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f4ff1729d1
* Add sys_ prefix to unwrapped system calls * This change also implements getlogin() and getlogin_r(). * Add getgroups and setgroups (#619) * Fix getgroups / setgroups tests across platforms. See #619 * Change accept type to struct sockaddr * (#630) * vista: use old strace path
61 lines
2.8 KiB
C
61 lines
2.8 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/strace.internal.h"
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#include "libc/calls/syscall_support-nt.internal.h"
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#include "libc/dce.h"
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#include "libc/intrin/kprintf.h"
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#include "libc/macros.internal.h"
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#include "libc/nt/accounting.h"
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#include "libc/runtime/runtime.h"
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#include "libc/str/str.h"
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#include "libc/sysv/errfuns.h"
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int sys_getlogin(char *, uint32_t);
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/**
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* Returns login name.
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*/
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int getlogin_r(char *buf, size_t size) {
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int rc;
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uint32_t n32;
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const char *p;
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char16_t buf16[257];
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if (IsBsd()) {
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rc = sys_getlogin(buf, size);
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} else if (IsWindows()) {
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n32 = ARRAYLEN(buf16);
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if (GetUserName(&buf16, &n32)) {
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tprecode16to8(buf, sizeof(size), buf16);
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rc = 0;
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} else {
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rc = __winerr();
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}
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} else if ((p = getenv("LOGNAME"))) {
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if (strlen(p) < size) {
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strcpy(buf, p);
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rc = 0;
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} else {
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rc = enomem();
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}
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} else {
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rc = enoent();
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}
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STRACE("getlogin_r([%#s], %'zu) → %d% m", rc != -1 ? buf : "n/a", size, rc);
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return rc;
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}
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