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Polish recent changes and make improvements

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- Simulate SIGPIPE on Windows NT
- Fix commandv() regression on Windows NT
- Fix sigprocmask() strace bug on OpenBSD
- Add many more system calls to --strace logging
- Make errno state more pristine in redbean strace
This commit is contained in:
Justine Tunney 2022-03-19 03:37:00 -07:00
parent 10a766ebd0
commit 39688a73e4
69 changed files with 460 additions and 1976 deletions
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12
libc/calls/isdirectory.c
View file

@ -39,7 +39,7 @@
* return fstatat(AT_FDCWD, path, &st, AT_SYMLINK_NOFOLLOW) != -1 &&
* S_ISDIR(st.st_mode);
*
* Except faster and with fewer dependencies.
* Except faster, with fewer dependencies, and less errno clobbering.
*
* @see isregularfile(), issymlink(), ischardev()
*/
@ -49,8 +49,11 @@ bool isdirectory(const char *path) {
union metastat st;
struct ZiposUri zipname;
e = errno;
if (IsAsan() && !__asan_is_valid(path, 1)) return efault();
if (weaken(__zipos_open) && weaken(__zipos_parseuri)(path, &zipname) != -1) {
if (IsAsan() && !__asan_is_valid(path, 1)) {
efault();
res = false;
} else if (weaken(__zipos_open) &&
weaken(__zipos_parseuri)(path, &zipname) != -1) {
if (weaken(__zipos_stat)(&zipname, &st.cosmo) != -1) {
res = S_ISDIR(st.cosmo.st_mode);
} else {
@ -59,7 +62,6 @@ bool isdirectory(const char *path) {
} else if (IsMetal()) {
res = false;
} else if (!IsWindows()) {
e = errno;
if (__sys_fstatat(AT_FDCWD, path, &st, AT_SYMLINK_NOFOLLOW) != -1) {
res = S_ISDIR(METASTAT(st, st_mode));
} else {
@ -68,7 +70,7 @@ bool isdirectory(const char *path) {
} else {
res = isdirectory_nt(path);
}
STRACE("isdirectory(%#s) → %hhhd% m", path, res);
STRACE("%s(%#s) → %hhhd% m", "isdirectory", path, res);
if (!res && (errno == ENOENT || errno == ENOTDIR)) {
errno = e;
}