summaryrefslogtreecommitdiff
path: root/lib/util/fopenat.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/util/fopenat.c')
-rw-r--r--lib/util/fopenat.c54
1 files changed, 0 insertions, 54 deletions
diff --git a/lib/util/fopenat.c b/lib/util/fopenat.c
deleted file mode 100644
index d47c002..0000000
--- a/lib/util/fopenat.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* SPDX-License-Identifier: ISC */
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <errno.h>
-
-#include "util.h"
-
-FILE *fopenat(int dirfd, const char *filename, const char *mode)
-{
- const char *ptr = mode;
- int fd, flags = 0;
- FILE *fp;
-
- switch (*(ptr++)) {
- case 'r':
- flags = O_RDONLY;
- break;
- case 'w':
- flags = O_WRONLY | O_CREAT | O_TRUNC;
- break;
- case 'a':
- flags = O_WRONLY | O_CREAT | O_APPEND;
- break;
- default:
- errno = EINVAL;
- return NULL;
- }
-
- if (*ptr == '+') {
- flags = (flags & ~(O_RDONLY | O_WRONLY)) | O_RDWR;
- ++ptr;
- }
-
- if (*ptr == 'b')
- ++ptr;
-
- if (*ptr != '\0') {
- errno = EINVAL;
- return NULL;
- }
-
- fd = openat(dirfd, filename, flags, 0644);
- if (fd == -1)
- return NULL;
-
- fp = fdopen(fd, mode);
- if (fp == NULL)
- close(fd);
-
- return fp;
-}