Make improvements

- Invent openatemp() API
- Invent O_UNLINK open flag
- Introduce getenv_secure() API
- Remove `git pull` from cosmocc
- Fix utimes() when path is NULL
- Fix mktemp() to never return NULL
- Fix utimensat() UTIME_OMIT on XNU
- Improve utimensat() code for RHEL5
- Turn `argv[0]` C:/ to /C/ on Windows
- Introduce tmpnam() and tmpnam_r() APIs
- Fix more const issues with internal APIs
- Permit utimes() on WIN32 in O_RDONLY mode
- Fix fdopendir() to check fd is a directory
- Fix recent crash regression in landlock make
- Fix futimens(AT_FDCWD, NULL) to return EBADF
- Use workaround so `make -j` doesn't fork bomb
- Rename dontdiscard to __wur (just like glibc)
- Fix st_size for WIN32 symlinks containing UTF-8
- Introduce stdio ext APIs needed by GNU coreutils
- Fix lstat() on WIN32 for symlinks to directories
- Move some constants from normalize.inc to limits.h
- Fix segv with memchr() and memcmp() overlapping page
- Implement POSIX fflush() behavior for reader streams
- Implement AT_SYMLINK_NOFOLLOW for utimensat() on WIN32
- Don't change read-only status of existing files on WIN32
- Correctly handle `0x[^[:xdigit:]]` case in strtol() functions

third_party/xxhash/cli/xsum_bench.c

@@ -46,7 +46,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"

third_party/xxhash/cli/xsum_os_specific.c

@@ -94,7 +94,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"   /* FILE */
 static __inline int XSUM_IS_CONSOLE(FILE* stdStream)
 {

third_party/xxhash/cli/xsum_os_specific.h

@@ -33,7 +33,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 
 

third_party/xxhash/cli/xsum_sanity_check.c

@@ -41,7 +41,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"

third_party/xxhash/cli/xxhsum.c

@@ -56,7 +56,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"

third_party/xxhash/tests/bench/benchHash.c

@@ -37,7 +37,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"

third_party/xxhash/tests/bench/benchfn.c

@@ -24,7 +24,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"
@@ -59,7 +59,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"       /* fprintf */
 #  define DISPLAY(...)       fprintf(stderr, __VA_ARGS__)
 #  define DEBUGOUTPUT(...) { if (DEBUG) DISPLAY(__VA_ARGS__); }

third_party/xxhash/tests/bench/bhDisplay.c

@@ -38,7 +38,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"
@@ -48,7 +48,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"    /* printf */
 #include "libc/assert.h"
 

third_party/xxhash/tests/bench/main.c

@@ -32,7 +32,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"       /* printf */
 #include "libc/limits.h"
 #include "libc/sysv/consts/_posix.h"

third_party/xxhash/tests/bench/timefn.c

@@ -31,7 +31,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"
@@ -41,7 +41,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"    /* perror */
 
 UTIL_time_t UTIL_getTime(void) { UTIL_time_t x; QueryPerformanceCounter(&x); return x; }
@@ -117,7 +117,7 @@ PTime UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd)
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/getopt/getopt.internal.h"
@@ -128,7 +128,7 @@ PTime UTIL_getSpanTimeNano(UTIL_time_t clockStart, UTIL_time_t clockEnd)
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"    /* perror */
 
 UTIL_time_t UTIL_getTime(void)

third_party/xxhash/tests/collisions/main.c

@@ -55,7 +55,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"
@@ -68,7 +68,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"    /* printf, fflush */
 
 #undef NDEBUG   /* ensure assert is _not_ disabled */

third_party/xxhash/tests/collisions/pool.c

@@ -22,7 +22,7 @@
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"

third_party/xxhash/tests/collisions/sort.cc

@@ -51,7 +51,7 @@ void sort64(uint64_t* table, size_t size)
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/musl/crypt.h"

third_party/xxhash/tests/collisions/threading.h

@@ -66,7 +66,7 @@ extern "C" {
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 
 /* mutex */

third_party/xxhash/tests/generate_unicode_test.c

@@ -45,7 +45,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 
 /* Use a Japanese filename, something that can't be cheated with ANSI.

third_party/xxhash/tests/multiInclude.c

@@ -31,7 +31,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"   /* printf */
 
 /* Normal include, gives access to public symbols */

third_party/xxhash/xxh_x86dispatch.c

@@ -203,7 +203,7 @@ extern "C" {
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
 #  define XXH_debugPrint(str) { fprintf(stderr, "DEBUG: xxHash dispatch: %s \n", str); fflush(NULL); }
 #else

third_party/xxhash/xxhash.h

@@ -147,7 +147,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
  *   #include "libc/assert.h"
  *   #include "third_party/xxhash/xxhash.h"
@@ -1363,7 +1363,7 @@ XXH_PUBLIC_API XXH_PUREF XXH128_hash_t XXH128(XXH_NOESCAPE const void* data, siz
 #include "libc/fmt/fmt.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/stdio.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "third_party/musl/tempnam.h"
  *    #include "libc/calls/calls.h"
 #include "libc/calls/termios.h"
@@ -1375,7 +1375,7 @@ XXH_PUBLIC_API XXH_PUREF XXH128_hash_t XXH128(XXH_NOESCAPE const void* data, siz
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/getopt/getopt.internal.h"
@@ -1825,7 +1825,7 @@ static void XXH_free(void* p) { (void)p; }
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/dprintf.h"
 #include "libc/stdio/rand.h"
-#include "libc/stdio/temp.h"
+#include "libc/temp.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/exit.h"
 #include "third_party/getopt/getopt.internal.h"