Make more compatibility improvements

libc/fmt/strerror.c

@@ -16,9 +16,10 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/dce.h"
 #include "libc/fmt/fmt.h"
+#include "libc/intrin/safemacros.internal.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 
 /**

libc/intrin/describefutexresult.c

@@ -18,7 +18,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/fmt/itoa.h"
 #include "libc/intrin/describeflags.internal.h"
-#include "libc/str/str.h"
+#include "libc/str/errfun.h"
 
 const char *(DescribeFutexResult)(char buf[12], int ax) {
   const char *s;

libc/intrin/pthread.h

@@ -3,7 +3,9 @@
 
 #define PTHREAD_ONCE_INIT 0
 
-#define PTHREAD_KEYS_MAX 64
+#define PTHREAD_KEYS_MAX              64
+#define PTHREAD_STACK_MIN             2048
+#define PTHREAD_DESTRUCTOR_ITERATIONS 4
 
 #define PTHREAD_BARRIER_SERIAL_THREAD 31337
 

libc/intrin/strerrno.greg.c

@@ -17,7 +17,7 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/fmt/magnumstrs.internal.h"
-#include "libc/str/str.h"
+#include "libc/str/errfun.h"
 
 /**
  * Converts errno value to symbolic name.

libc/intrin/strerror_wr.greg.c

@@ -24,6 +24,7 @@
 #include "libc/nt/enum/formatmessageflags.h"
 #include "libc/nt/enum/lang.h"
 #include "libc/nt/process.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 
 /**

libc/isystem/limits.h

@@ -1,5 +1,9 @@
 #ifndef LIBC_ISYSTEM_LIMITS_H_
 #define LIBC_ISYSTEM_LIMITS_H_
+#include "libc/intrin/pthread.h"
 #include "libc/limits.h"
 #include "libc/sysv/consts/_posix.h"
+#include "libc/sysv/consts/iov.h"
+#include "libc/sysv/consts/limits.h"
+#include "libc/sysv/consts/xopen.h"
 #endif

libc/isystem/unistd.h

@@ -2,6 +2,7 @@
 #define LIBC_ISYSTEM_UNISTD_H_
 #include "libc/calls/calls.h"
 #include "libc/calls/weirdtypes.h"
+#include "libc/runtime/pathconf.h"
 #include "libc/runtime/sysconf.h"
 #include "libc/sysv/consts/fileno.h"
 #include "libc/sysv/consts/o.h"

libc/limits.h

@@ -36,6 +36,7 @@
 #define INTMAX_MAX    __INTMAX_MAX__
 #define UINTMAX_MAX   __UINTMAX_MAX__
 
+extern int __got_long_min;
 #define SCHAR_MIN     (-SCHAR_MAX - 1)
 #define SHRT_MIN      (-SHRT_MAX - 1)
 #define INT_MIN       (-INT_MAX - 1)
@@ -90,4 +91,21 @@
 #define SIG_ATOMIC_MIN INT32_MIN
 #define SIG_ATOMIC_MAX INT32_MAX
 
+#define FILESIZEBITS   64
+#define SYMLOOP_MAX    40
+#define TTY_NAME_MAX   32
+#define HOST_NAME_MAX  255
+#define TZNAME_MAX     6
+#define WORD_BIT       32
+#define SEM_VALUE_MAX  0x7fffffff
+#define SEM_NSEMS_MAX  256
+#define DELAYTIMER_MAX 0x7fffffff
+#define MQ_PRIO_MAX    32768
+#define LOGIN_NAME_MAX 256
+
+#define NL_ARGMAX  9
+#define NL_MSGMAX  32767
+#define NL_SETMAX  255
+#define NL_TEXTMAX 2048
+
 #endif /* COSMOPOLITAN_LIBC_LIMITS_H_ */

libc/runtime/fpathconf.c

@@ -0,0 +1,53 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/errno.h"
+#include "libc/limits.h"
+#include "libc/runtime/pathconf.h"
+#include "libc/sysv/consts/_posix.h"
+#include "libc/sysv/consts/limits.h"
+#include "libc/sysv/errfuns.h"
+
+long fpathconf(int fd, int name) {
+  if (name == _PC_LINK_MAX) return _POSIX_LINK_MAX;
+  if (name == _PC_MAX_CANON) return _POSIX_MAX_CANON;
+  if (name == _PC_MAX_INPUT) return _POSIX_MAX_INPUT;
+  if (name == _PC_NAME_MAX) return NAME_MAX;
+  if (name == _PC_PATH_MAX) return PATH_MAX;
+  if (name == _PC_PIPE_BUF) return PIPE_BUF;
+  if (name == _PC_CHOWN_RESTRICTED) return 1;
+  if (name == _PC_NO_TRUNC) return 1;
+  if (name == _PC_VDISABLE) return 0;
+  if (name == _PC_SYNC_IO) return 1;
+  if (name == _PC_ASYNC_IO) return -1;
+  if (name == _PC_PRIO_IO) return -1;
+  if (name == _PC_SOCK_MAXBUF) return -1;
+  if (name == _PC_FILESIZEBITS) return FILESIZEBITS;
+  if (name == _PC_REC_INCR_XFER_SIZE) return 4096;
+  if (name == _PC_REC_MAX_XFER_SIZE) return 4096;
+  if (name == _PC_REC_MIN_XFER_SIZE) return 4096;
+  if (name == _PC_REC_XFER_ALIGN) return 4096;
+  if (name == _PC_ALLOC_SIZE_MIN) return 4096;
+  if (name == _PC_SYMLINK_MAX) return -1;
+  if (name == _PC_2_SYMLINKS) return 1;
+  return einval();
+}
+
+long pathconf(const char *path, int name) {
+  return fpathconf(-1, name);
+}

libc/runtime/pathconf.h

@@ -0,0 +1,34 @@
+#ifndef COSMOPOLITAN_LIBC_RUNTIME_PATHCONF_H_
+#define COSMOPOLITAN_LIBC_RUNTIME_PATHCONF_H_
+
+#define _PC_LINK_MAX           0
+#define _PC_MAX_CANON          1
+#define _PC_MAX_INPUT          2
+#define _PC_NAME_MAX           3
+#define _PC_PATH_MAX           4
+#define _PC_PIPE_BUF           5
+#define _PC_CHOWN_RESTRICTED   6
+#define _PC_NO_TRUNC           7
+#define _PC_VDISABLE           8
+#define _PC_SYNC_IO            9
+#define _PC_ASYNC_IO           10
+#define _PC_PRIO_IO            11
+#define _PC_SOCK_MAXBUF        12
+#define _PC_FILESIZEBITS       13
+#define _PC_REC_INCR_XFER_SIZE 14
+#define _PC_REC_MAX_XFER_SIZE  15
+#define _PC_REC_MIN_XFER_SIZE  16
+#define _PC_REC_XFER_ALIGN     17
+#define _PC_ALLOC_SIZE_MIN     18
+#define _PC_SYMLINK_MAX        19
+#define _PC_2_SYMLINKS         20
+
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+long fpathconf(int, int);
+long pathconf(const char *, int);
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_RUNTIME_PATHCONF_H_ */

libc/runtime/runtime.h

@@ -82,8 +82,6 @@ int mprotect(void *, uint64_t, int) privileged;
 int msync(void *, size_t, int);
 void *sbrk(intptr_t);
 int brk(void *);
-long fpathconf(int, int);
-long pathconf(const char *, int);
 int getgroups(int, uint32_t[]);
 long gethostid(void);
 int sethostid(long);

libc/str/errfun.h

@@ -0,0 +1,11 @@
+#ifndef COSMOPOLITAN_LIBC_STR_ERRFUN_H_
+#define COSMOPOLITAN_LIBC_STR_ERRFUN_H_
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+char *strerrno(int) nosideeffect libcesque;
+char *strerdoc(int) nosideeffect libcesque;
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_STR_ERRFUN_H_ */

libc/str/str.h

@@ -211,8 +211,6 @@ wint_t towctrans(wint_t, wctrans_t);
 
 char *strsignal(int) returnsnonnull libcesque;
 char *strerror(int) returnsnonnull dontthrow nocallback;
-char *strerrno(int) nosideeffect libcesque;
-char *strerdoc(int) nosideeffect libcesque;
 int strerror_r(int, char *, size_t) dontthrow nocallback;
 int strerror_wr(int, uint32_t, char *, size_t) dontthrow nocallback;
 int __xpg_strerror_r(int, char *, size_t) dontthrow nocallback;

libc/sysv/consts.sh

@@ -1229,6 +1229,7 @@ syscon	mount	MNT_SNAPSHOT				0			0x40000000		0x01000000		0			0			0			# confusing
 #
 #	group	name					GNU/Systemd		XNU's Not UNIX!		FreeBSD			OpenBSD			NetBSD			The New Technology	Commentary
 syscon	limits	PIPE_BUF				4096			512			512			512			512			4096			# bsd consensus
+syscon	limits	NGROUPS_MAX				65536			16			1023			16			16			0			#
 syscon	limits	_ARG_MAX				128*1024		1024*1024		512*1024		512*1024		256*1024		32767*2			# bsd consensus
 syscon	limits	_NAME_MAX				255			255			255			255			511			255			# probably higher on windows?
 syscon	limits	_PATH_MAX				4096			1024			1024			1024			1024			512			# cosmopolitan libc imposes a lower 512 limit; nt theoretically goes up to 32767

libc/sysv/consts/NGROUPS_MAX.s

@@ -0,0 +1,2 @@
+.include "o/libc/sysv/consts/syscon.internal.inc"
+.syscon limits,NGROUPS_MAX,65536,16,1023,16,16,0

libc/sysv/consts/limits.h

@@ -4,19 +4,21 @@
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 
+extern const int NGROUPS_MAX;
 extern const int PIPE_BUF;
 extern const int _ARG_MAX;
 extern const int _NAME_MAX;
-extern const int _PATH_MAX;
 extern const int _NSIG;
+extern const int _PATH_MAX;
 
 COSMOPOLITAN_C_END_
 #endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
 
-#define PIPE_BUF  SYMBOLIC(PIPE_BUF)
+#define NGROUPS_MAX SYMBOLIC(NGROUPS_MAX)
-#define _ARG_MAX  SYMBOLIC(_ARG_MAX)
+#define PIPE_BUF    SYMBOLIC(PIPE_BUF)
-#define _NAME_MAX SYMBOLIC(_NAME_MAX)
+#define _ARG_MAX    SYMBOLIC(_ARG_MAX)
-#define _PATH_MAX SYMBOLIC(_PATH_MAX)
+#define _NAME_MAX   SYMBOLIC(_NAME_MAX)
-#define _NSIG     SYMBOLIC(_NSIG)
+#define _NSIG       SYMBOLIC(_NSIG)
+#define _PATH_MAX   SYMBOLIC(_PATH_MAX)
 
 #endif /* COSMOPOLITAN_LIBC_SYSV_CONSTS_LIMITS_H_ */

third_party/lua/lunix.c

@@ -58,6 +58,7 @@
 #include "libc/sock/syslog.h"
 #include "libc/stdio/append.internal.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/path.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/af.h"

third_party/python/Modules/posixmodule.c

@@ -37,6 +37,7 @@
 #include "libc/nt/runtime.h"
 #include "libc/runtime/dlfcn.h"
 #include "libc/runtime/gc.internal.h"
+#include "libc/runtime/pathconf.h"
 #include "libc/runtime/sysconf.h"
 #include "libc/sock/sendfile.internal.h"
 #include "libc/sock/sock.h"

tool/build/chmod.c

@@ -22,6 +22,7 @@
 #include "libc/fmt/conv.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/ex.h"
 #include "libc/sysv/consts/exit.h"

tool/build/cocmd.c

@@ -23,6 +23,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/o.h"
 

tool/build/cp.c

@@ -26,6 +26,7 @@
 #include "libc/runtime/gc.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/at.h"
 #include "libc/sysv/consts/ex.h"

tool/build/dd.c

@@ -16,13 +16,14 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/calls/calls.h"
 #include "libc/errno.h"
 #include "libc/fmt/conv.h"
+#include "libc/intrin/safemacros.internal.h"
 #include "libc/limits.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/o.h"
 

tool/build/fixupobj.c

@@ -30,6 +30,7 @@
 #include "libc/log/check.h"
 #include "libc/log/log.h"
 #include "libc/runtime/runtime.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/map.h"
 #include "libc/sysv/consts/msync.h"

tool/build/gzip.c

@@ -21,6 +21,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/ex.h"
 #include "libc/sysv/consts/exit.h"

tool/build/mkdir.c

@@ -12,6 +12,7 @@
 #include "libc/fmt/conv.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/ex.h"
 #include "libc/x/x.h"

tool/build/mv.c

@@ -24,6 +24,7 @@
 #include "libc/runtime/gc.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/at.h"
 #include "libc/sysv/consts/ex.h"

tool/build/ocat.c

@@ -21,6 +21,7 @@
 #include "libc/fmt/itoa.h"
 #include "libc/mem/io.h"
 #include "libc/runtime/runtime.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/ex.h"
 #include "libc/sysv/consts/o.h"

tool/build/rm.c

@@ -20,6 +20,7 @@
 #include "libc/errno.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/ex.h"
 #include "libc/sysv/consts/exit.h"

tool/build/strace.c

@@ -17,7 +17,6 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
-#include "libc/intrin/bits.h"
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/iovec.h"
 #include "libc/calls/struct/sigaction.h"
@@ -29,6 +28,7 @@
 #include "libc/errno.h"
 #include "libc/fmt/fmt.h"
 #include "libc/fmt/itoa.h"
+#include "libc/intrin/bits.h"
 #include "libc/intrin/kprintf.h"
 #include "libc/intrin/nomultics.internal.h"
 #include "libc/log/check.h"
@@ -36,6 +36,7 @@
 #include "libc/mem/mem.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/append.internal.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/nr.h"
 #include "libc/sysv/consts/ptrace.h"

tool/build/touch.c

@@ -20,6 +20,7 @@
 #include "libc/errno.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 
 /**

tool/build/unbundle.c

@@ -23,6 +23,7 @@
 #include "libc/fmt/itoa.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/s.h"
 #include "libc/x/x.h"

tool/viz/printdos2errno.c

@@ -19,6 +19,7 @@
 #include "libc/fmt/fmt.h"
 #include "libc/intrin/dos2errno.internal.h"
 #include "libc/intrin/kprintf.h"
+#include "libc/str/errfun.h"
 #include "libc/str/str.h"
 
 // note: these are supplementary errno magnum mappings