Update.

1999-04-28  Ulrich Drepper  <drepper@cygnus.com>

	* argp/argp-ba.c (argp_program_bug_address): Don't initialize with 0.
	* argp/argp-parse.c (_argp_hang): Likewise.
	* argp/argp-pv.c (argp_program_version): Likewise.
	* argp/argp-pvh.c (argp_program_version_hook): Likewise.
	* inet/ether_hton.c (ether_hton, startp): Likewise.
	* inet/ether_ntoh.c (ether_ntoh, startp): Likewise.
	* inet/getnetgrent_r.c (setup, startp): Likewise.
	* intl/loadmsgcat.c (_nl_msg_cat_cntr): Likewise.
	* intl/localealias.c (string_space, string_space_act, string_space_max,
	nmap, maxmap): Likewise.
	* libio/iopopen.c (proc_file_chain): Likewise.
	* libio/oldiopopen.c (old_proc_file_chain): Likewise.
	* locale/lc-collate.c (__collate_table, __collate_extra,
	__collate_element_hash, __collate_element_strings,
	__collate_element_values): Likewise.
	* malloc/mcheck.c (mcheck_used): Likewise.
	* malloc/mtrace.c (added_atexit_handler): Likewise.
	* malloc/set-freeres.c (already_called): Likewise.
	* misc/getpass.c (getpass) [buf, bufsize]: Likewise.
	* misc/syslog.c (LogStat, LogTag): Likewise.
	* nss/XXX-lookup.c (DATABASE_NAME_SYMBOL): Likewise.
	* nss/getXXbyYY_r.c (startp): Likewise.
	* posix/getopt.c (optarg, __getopt_initialized): Likewise.
	* posix/regex.c (init_syntax_once) [done]: Likewise.
	(debug): Likewise.
	* string/strfry.c (init): Likewise.
	* sunrpc/svc_run.c (svc_top): Likewise.
	* posix/euidaccess.c (have_ids): Likewise.
	* sysdeps/unix/sysv/linux/poll.c (must_emulate): Likewise.
	* sysdeps/unix/sysv/linux/ttyname.c (__ttyname, namelen): Likewise.
	* time/getdate.c (getdate_err): Likewise.
	* time/tzfile.c (transitions, type_idxs, types, zone_names, leaps):
	Likewise.
	* time/tzset.c (old_tz, is_initialized): Likewise.

	* inet/getnameinfo.c (nrl_domainname): Rewrite to allow initialization
	of static data with zero.
	* signal/allocrtsig.c (init): Likewise.

	* string/Makefile (routines): Add strchrnul.
	* string/Versions [GLIBC_2.1.1]: Add strchrnul.
	* string/string.c: Add strchrnul prototype.
	* include/string.h: Add __strchrnul prototype.
	* sysdeps/generic/strchrnul.c: New file.
	* sysdeps/i386/strchrnul.S: New file.
	* sysdeps/i386/bits/string.c: Add strchrnul optimization.
	* sysdeps/i386/i486/bits/string.c: Likewise.
	* argp/argp-help.c (argp_args_usage): Use __strchrnul.
	* inet/ether_line.c (ether_line): Likewise.
	* nscd/nscd_conf.c (nscd_parse_file): Likewise.
	* nss/nsswitch.c (nss_parse_file): Likewise.
	* posix/execvp.c (execvp): Likewise.
	* posix/fnmatch.c (internal_fnmatch): Likewise.
	* resolv/res_hconf.c (_res_hconv_init): Likewise.
	* resolv/res_init.c (res_init): Likewise.
	* stdlib/fmtmsg.c (init): Likewise.
	* stdlib/getsubopt.c (getsubopt): Likewise.

	* catgets/catgets.c (catopen): Only allocate one memory block.
	(catclose): Only one free call necessary.

	* catgets/open_catalog.c (__open_catalog): Simplify handling of
	file descriptor.

	* ctype/ctype-extn.c: Make __toascii_l and __isascii_l alias instead
	of real functions.  Simplify _tolower and _toupper.

	* grp/initgroups.c (compat_call): Remove unnecessary use of pointer
	variable.

	* iconv/gconv.h (struct gconv_info): Change data element from pointer
	to array of size 0.
	* iconv/gconv_open.c (__gconv_open): Allocate structures accordingly.
	* iconv/gconv_close.c (__gconv_close): Don't free data.

	* iconv/gconv_conf.c (add_alias): Avoid searching in tree twice to
	insert new alias.

	* iconv/gconv_db.c (add_derivation): More efficient copying.  Check
	for error while inserting in tree.

	* include/time.h: Pretty print.

	* inet/ruserpass.c: Rewrite use of toktab to avoid string pointers
	in table and lots of relocations.
	* posix/regex.c (regerror): Rewrite use of re_error_msgid to avoid
	string pointers in table and lots of relocations.

	* intl/finddomain.c: Remove definition of strchr macro.

	* io/ftw.c (nftw_arr, ftw_arr): Make const.

	* locale/loadlocale.c (_nl_load_locale): Optimize string copying.

	* locale/localeinfo.h (_nl_category_names): Change into an array with
	fixed width char string elements.
	* locale/setlocale.c (_nl_category_names): Likewise.
	(_nl_current): Make global.
	* locale/nl_langinfo.c (nldata): Removed.  Use _nl_current now.

	* malloc/Makefile (distribute): Add stackinfo.h.
	* sysdeps/generic/stackinfo.h: New file.
	* sysdeps/i386/stackinfo.h: New file.
	* posix/execl.c: Use stackinfo.h in optimizing alloca use.
	* posix/execle.c: Likewise.
	* posix/execlp.c: Likewise.

	* nis/nis_table.c (__create_ib_request): Always use realloc.

	* posix/execvp.c (execute): Rename to script_execute and keep only
	code to execute using shell.
	(execvp): Call execv directly and only fall back on script_execute.

	* resolv/inet_net_pton.c (inet_net_pton_ipv4): Remove digits define
	and always use xdigits instead.

	* resolv/res_init.c (res_init): Use rawmemchr instead of strchr
	where appropriate.

	* stdlib/fpioconst.h (__tens): New declaration.
	(struct mp_power): Remove array, add arrayoff element.
	* stdlib/fpioconst.c: Replace definitions of _ten_p* arrays by one
	__tens array and add in _fpioconst_pow10 offsets into __tens.
	* stdio-common/printf_fp.c: Rewrite to use new __tens array.
	* stdlib/strtod.c: Likewise.

	* stdlib/a64l.c (a64l_table): Avoid unnecessary elements.

	* stdlib/exit.c: Rewrite to use __exit_funcs being as sign for end
	of the list.
	* stdlib/atexit.c (__exit_funcs): Don't initialize.

	* stdlib/fmtmsg.c (keywords): Make name element fixed width array.

	* sunrpc/clnt_perr.c: Rewrite clnt_sperrno and auth_errmsg to use
	a single and an array with offsets.

	* sunrpc/des_soft.c (partab): Make it const.

	* sunrpc/key_call.c (trytimeout, tottimeout): Make const.
	(__key_encryptsession_pk_LOCAL): Don't initialize with 0.
	(__key_decryptsession_pk_LOCAL): Likewise.
	(__key_gendes_LOCAL): Likewise.
	(MESSENGER): Mark const.
	(key_call_private_main): Don't initialize with 0.
	(use_keyenvoy): Don't initialize with 0.
	(key_call): Rewrite to reverse logic of use_doors variable.

	* sunrpc/netname.c (OPSYS): Define as array, not pointer.
	(startp): Don't initialize with zero.

	* sunrpc/openchild.c (_openchild): Make first argument const.

	* sunrpc/pmap_rmt.c (timeout): Mark const.
	* sunrpc/xcrypt.c (hex): Likewise.

	* sysdeps/unix/sysv/linux/getcwd.c: Rewrite to allow omitting
	initialization of global variables.
	* sysdeps/unix/sysv/linux/getpt.c: Likewise.
	* sysdeps/unix/sysv/linux/if_index.c: Likewise.
	* termios/tcgetsid.c: Likewise.

	* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (x86_cap_flags): Change
	fxsr to osfxsr.

	* time/tzfile.c (__tzfile_read): Rewrite to allocate only one memory
	block.  Add function to free memory if wanted.
	* time/tzset.c (tzset_internal): Pass extra argument to __tzfile_read.

	* wcsmbs/wcsmbsload.c (to_wc, to_mb): Correct initializers.

	* wcsmbs/wmemset.c: Little code optimization.

1 files changed, 41 insertions, 42 deletions

diff --git a/posix/execvp.c b/posix/execvp.c
index 7afb01d..3f93357 100644
--- a/posix/execvp.c
+++ b/posix/execvp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 95, 96, 97, 98 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,37 +24,31 @@
 #include <paths.h>
 
 
+/* The file is accessible but it is not an executable file.  Invoke
+   the shell to interpret it as a script.  */
 static void
 internal_function
-execute (const char *file, char *const argv[])
+script_execute (const char *file, char *const argv[])
 {
-  execv (file, argv);
-
-  if (errno == ENOEXEC)
-    {
-      /* The file is accessible but it is not an executable file.
-	 Invoke the shell to interpret it as a script.  */
-
-      /* Count the arguments.  */
-      int argc = 0;
-      while (argv[argc++])
-	;
-
-      /* Construct an argument list for the shell.  */
+  /* Count the arguments.  */
+  int argc = 0;
+  while (argv[argc++])
+    ;
+
+  /* Construct an argument list for the shell.  */
+  {
+    char *new_argv[argc + 1];
+    new_argv[0] = (char *) _PATH_BSHELL;
+    new_argv[1] = (char *) file;
+    while (argc > 1)
       {
-	char *new_argv[argc + 1];
-	new_argv[0] = (char *) _PATH_BSHELL;
-	new_argv[1] = (char *) file;
-	while (argc > 1)
-	  {
-	    new_argv[argc] = argv[argc - 1];
-	    --argc;
-	  }
-
-	/* Execute the shell.  */
-	execv (new_argv[0], new_argv);
+	new_argv[argc] = argv[argc - 1];
+	--argc;
       }
-    }
+
+    /* Execute the shell.  */
+    execv (new_argv[0], new_argv);
+  }
 }
 
 
@@ -65,8 +59,6 @@ execvp (file, argv)
      const char *file;
      char *const argv[];
 {
-  int got_eacces = 0;
-
   if (*file == '\0')
     {
       /* We check the simple case first. */
@@ -75,10 +67,16 @@ execvp (file, argv)
     }
 
   if (strchr (file, '/') != NULL)
-    /* Don't search when it contains a slash.  */
-    execute (file, argv);
+    {
+      /* Don't search when it contains a slash.  */
+      execv (file, argv);
+
+      if (errno == ENOEXEC)
+	script_execute (file, argv);
+    }
   else
     {
+      int got_eacces = 0;
       char *path, *p, *name;
       size_t len;
 
@@ -100,9 +98,7 @@ execvp (file, argv)
       do
 	{
 	  path = p;
-	  p = strchr (path, ':');
-	  if (p == NULL)
-	    p = strchr (path, '\0');
+	  p = __strchrnul (path, ':');
 
 	  if (p == path)
 	    /* Two adjacent colons, or a colon at the beginning or the end
@@ -113,11 +109,14 @@ execvp (file, argv)
 	      /* Construct the pathname to try.  */
 	      char *tmp = __mempcpy (name, path, p - path);
 	      *tmp++ = '/';
-	      (void) __mempcpy (tmp, file, len);
+	      memcpy (tmp, file, len);
 	    }
 
 	  /* Try to execute this name.  If it works, execv will not return.  */
-	  execute (name, argv);
+	  execv (name, argv);
+
+	  if (errno == ENOEXEC)
+	    script_execute (name, argv);
 
 	  switch (errno)
 	    {
@@ -142,13 +141,13 @@ execvp (file, argv)
 	    }
 	}
       while (*p++ != '\0');
-    }
-
-  /* We tried every element and none of them worked.  */
 
-  if (got_eacces)
-    /* At least one failure was due to permissions, so report that error.  */
-    __set_errno (EACCES);
+      /* We tried every element and none of them worked.  */
+      if (got_eacces)
+	/* At least one failure was due to permissions, so report that
+           error.  */
+	__set_errno (EACCES);
+    }
 
   /* Return the error from the last attempt (probably ENOENT).  */
   return -1;