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Fix mkfifo() on Linux

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Justine Tunney 2023-06-17 16:04:08 -07:00
parent 12452976bd
commit 2c0f0bab0b
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GPG key ID: BE714B4575D6E328
1 changed files with 3 additions and 9 deletions
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12
libc/calls/mkfifo.c
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@ -33,6 +33,7 @@
* Creates named pipe. * Creates named pipe.
* *
* @param mode is octal, e.g. 0600 for owner-only read/write * @param mode is octal, e.g. 0600 for owner-only read/write
* @return 0 on success, or -1 w/ errno
* @asyncsignalsafe * @asyncsignalsafe
*/ */
int mkfifo(const char *pathname, unsigned mode) { int mkfifo(const char *pathname, unsigned mode) {
@ -40,17 +41,10 @@ int mkfifo(const char *pathname, unsigned mode) {
int e, rc; int e, rc;
if (IsAsan() && !__asan_is_valid_str(pathname)) { if (IsAsan() && !__asan_is_valid_str(pathname)) {
rc = efault(); rc = efault();
} else if (IsLinux()) {
rc = sys_mknodat(AT_FDCWD, pathname, mode | S_IFIFO, 0);
} else { } else {
e = errno;
rc = sys_mkfifo(pathname, mode); rc = sys_mkfifo(pathname, mode);
if (rc == -1 && rc == ENOSYS) {
errno = e;
rc = sys_mknod(pathname, mode | S_IFIFO, 0);
if (rc == -1 && rc == ENOSYS) {
errno = e;
rc = sys_mknodat(AT_FDCWD, pathname, mode | S_IFIFO, 0);
}
}
} }
STRACE("mkfifo(%#s, %#o) → %d% m", pathname, mode, rc); STRACE("mkfifo(%#s, %#o) → %d% m", pathname, mode, rc);
return rc; return rc;