mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 19:43:32 +00:00
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/' ```
77 lines
3.4 KiB
C
77 lines
3.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set et ft=c ts=8 sts=2 sw=2 fenc=utf-8 :vi │
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 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/calls.h"
|
|
#include "libc/mem/mem.h"
|
|
#include "libc/stdio/internal.h"
|
|
#include "libc/stdio/stdio.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/sysv/consts/o.h"
|
|
#include "libc/sysv/errfuns.h"
|
|
|
|
static const char *fixpathname(const char *pathname, int flags) {
|
|
if ((flags & O_ACCMODE) == O_RDONLY && strcmp(pathname, "-") == 0) {
|
|
return "/dev/stdin";
|
|
} else if ((flags & O_ACCMODE) == O_WRONLY && strcmp(pathname, "-") == 0) {
|
|
return "/dev/stdout";
|
|
} else {
|
|
return pathname;
|
|
}
|
|
}
|
|
|
|
static int openpathname(const char *pathname, int flags, bool *out_noclose) {
|
|
if ((flags & O_ACCMODE) == O_RDONLY && strcmp(pathname, "/dev/stdin") == 0) {
|
|
*out_noclose = true;
|
|
return fileno(stdin);
|
|
} else if ((flags & O_ACCMODE) == O_WRONLY &&
|
|
strcmp(pathname, "/dev/stdout") == 0) {
|
|
*out_noclose = true;
|
|
return fileno(stdout);
|
|
} else {
|
|
*out_noclose = false;
|
|
return open(pathname, flags, 0666);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Opens file as stream object.
|
|
*
|
|
* @param pathname is a utf-8 ideally relative filename
|
|
* @param mode is the string mode/flag DSL see fopenflags()
|
|
* @return new object to be free'd by fclose() or NULL w/ errno
|
|
* @note microsoft unilaterally deprecated this function lool
|
|
*/
|
|
FILE *fopen(const char *pathname, const char *mode) {
|
|
FILE *f = 0;
|
|
bool noclose;
|
|
int fd, flags;
|
|
if (!pathname) {
|
|
efault();
|
|
return 0;
|
|
}
|
|
flags = fopenflags(mode);
|
|
pathname = fixpathname(pathname, flags);
|
|
if ((fd = openpathname(pathname, flags, &noclose)) != -1) {
|
|
if ((f = fdopen(fd, mode)) != NULL) {
|
|
f->noclose = noclose;
|
|
} else if (!noclose) {
|
|
close(fd);
|
|
}
|
|
}
|
|
return f;
|
|
}
|