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Make more fixes and improvements

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- Remove PAGESIZE constant
- Fix realloc() documentation
- Fix ttyname_r() error reporting
- Make forking more reliable on Windows
- Make execvp() a few microseconds faster
- Make system() a few microseconds faster
- Tighten up the socket-related magic numbers
- Loosen restrictions on mmap() offset alignment
- Improve GetProgramExecutableName() with getenv("_")
- Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd()
- Fix flakes in pthread_cancel_test, unix_test, fork_test
- Fix recently introduced futex stack overflow regression
- Let sockets be passed as stdio to subprocesses on Windows
- Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
This commit is contained in:
Justine Tunney 2023-07-29 18:44:15 -07:00
parent 140a8a52e5
commit 18bb5888e1
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GPG key ID: BE714B4575D6E328
311 changed files with 1239 additions and 2622 deletions
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16
libc/stdio/dirstream.c
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@ -285,7 +285,9 @@ DIR *opendir(const char *name) {
res->zip.offset = GetZipCdirOffset(zip->cdir);
res->zip.records = GetZipCdirRecords(zip->cdir);
res->zip.prefix = malloc(zipname.len + 2);
memcpy(res->zip.prefix, zipname.path, zipname.len);
if (zipname.len) {
memcpy(res->zip.prefix, zipname.path, zipname.len);
}
if (zipname.len && res->zip.prefix[zipname.len - 1] != '/') {
res->zip.prefix[zipname.len++] = '/';
}
@ -364,7 +366,9 @@ static struct dirent *readdir_impl(DIR *dir) {
ent->d_off = dir->zip.offset;
ent->d_reclen = MIN(n, 255);
ent->d_type = S_ISDIR(mode) ? DT_DIR : DT_REG;
memcpy(ent->d_name, s, ent->d_reclen);
if (ent->d_reclen) {
memcpy(ent->d_name, s, ent->d_reclen);
}
ent->d_name[ent->d_reclen] = 0;
} else {
lastent = (struct dirent *)dir->buf;
@ -377,7 +381,9 @@ static struct dirent *readdir_impl(DIR *dir) {
ent->d_off = -1;
ent->d_reclen = n;
ent->d_type = DT_DIR;
memcpy(ent->d_name, s, ent->d_reclen);
if (ent->d_reclen) {
memcpy(ent->d_name, s, ent->d_reclen);
}
ent->d_name[ent->d_reclen] = 0;
}
}
@ -474,7 +480,9 @@ errno_t readdir_r(DIR *dir, struct dirent *output, struct dirent **result) {
return err;
}
if (entry) {
memcpy(output, entry, entry->d_reclen);
if (entry->d_reclen) {
memcpy(output, entry, entry->d_reclen);
}
} else {
output = 0;
}