Update.cvs/libc-ud-971105

1997-11-06 00:06  Ulrich Drepper  <drepper@cygnus.com>

	* argp/argp-help.c: Optimize a bit by using mempcpy.
	* elf/dl-load.c: Likewise.
	* elf/dl-lookup.c: Likewise.
	* inet/rcmd.c: Likewise.
	* io/ftw.c: Likewise.
	* libio/fileops.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/obprintf.c: Likewise.
	* nss/nsswitch.c: Likewise.
	* posix/execvp.c: Likewise.
	* posix/getopt.c: Likewise.
	* posix/glob.c: Likewise.
	* posix/wordexp.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
	* stdlib/canonicalize.c: Likewise.
	* stdlib/msort.c: Likewise.
	* string/argz-replace.c: Likewise.
	* sysdeps/generic/putenv.c: Likewise.
	* sysdeps/generic/setenv.c: Likewise.
	* sysdeps/posix/getcwd.c: Likewise.
	* sysdeps/posix/ttyname.c: Likewise.
	* sysdeps/posix/writev.c: Likewise.
	* time/strftime.c: Likewise.
	* time/tzfile.c: Likewise.

	* login/utmp_daemon.c: Use memcpy instead of strcpy where possible.
	* sunrpc/svcauth_des.c: Likewise.
	* sysdeps/unix/sysv/linux/gethostname.c: Likewise.

	* misc/tsearch.c: Use memcpy return value if possible.
	* posix/regex.c: Likewise.
	* sysdeps/unix/readdir_r.c: Likewise.
	* wcsmbc/wcsdup.c: Likewise.

	* nss/digits_dots.c: Little optimization.

	* inet/ruserpass.c (ruserpass): Optimize by using stpcpy.
	(struct toktab): Make tokstr field a const char *.

	* elf/dl-profile.c: Fix typo.

	* inet/ether_ntoh.c: Don't use relative #include path.
	* inet/gethstbynm.c: Likewise.
	* resolv/inet_pton.c: Likewise.
	* shadow/sgetspent_r.c: Likewise.

	* libio/oldfileops.c (_IO_old_file_jumps): Use correct sync and write
	callbacks.  Patch by NIIBE Yutaka <gniibe@mri.co.jp>.

	* posix/confstr.c: Correct string for _CS_LFS_CFLAGS.
	Handle _CS_XBS5_* constants.
	* posix/unistd.h: Add comment describing _XBS5_* constants.
	* sysdeps/generic/bits/confname.h: Add _CS_XBS5_* constants.

	* posix/regex.c: Indent preprocessor code.

	* posix/wordexp.c: Using _itoa_word instead of sprintf.

	* stdlib/canonicalize.c: Avoid unnecessary copying.  Handle NULL
	and "" arguments correctly according to SUS.
	* stdlib/test-canon.c: Test "" and NULL argument handling.

	* sysdeps/posix/writev.c: Correct condition to leave the loop.

1997-11-05 18:13  Ulrich Drepper  <drepper@cygnus.com>

	* nss/getXXbyYY.c: Set buffer to NULL if realloc fails so that possible
	next call starts with malloc again.
	Proposed by Joe Keane <jgk@jgk.org>.

1997-11-04 23:57  Ulrich Drepper  <drepper@cygnus.com>

	* configure.in: Correct gcc -pipe test.
	Patch by Zack Weinberg <zack@rabi.phys.columbia.edu>.

	* posix/glob.c: Cleanups.  Patch by H.J. Lu <hjl@lucon.org>.

1997-11-04  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/creature.texi (Feature Test Macros): Add _POSIX_C_SOURCE
	definition.

1 files changed, 26 insertions, 23 deletions

diff --git a/posix/wordexp.c b/posix/wordexp.c
index 54a550bf91..42b22ec8de 100644
--- a/posix/wordexp.c
+++ b/posix/wordexp.c
@@ -38,6 +38,8 @@
 #include <stdio.h>
 #include <fnmatch.h>
 
+#include <stdio-common/_itoa.h>
+
 /* Undefine the following line for the production version.  */
 /* #define NDEBUG 1 */
 #include <assert.h>
@@ -112,9 +114,8 @@ w_addstr (char *buffer, size_t *actlen, size_t *maxlen, const char *str)
 
   if (buffer != NULL)
     {
-      memcpy (&buffer[*actlen], str, len);
+      *((char *) __mempcpy (&buffer[*actlen], str, len)) = '\0';
       *actlen += len;
-      buffer[*actlen] = '\0';
     }
 
   return buffer;
@@ -156,7 +157,7 @@ parse_backslash (char **word, size_t *word_length, size_t *max_length,
       return WRDE_SYNTAX;
 
     case '\n':
-      (*offset)++;
+      ++(*offset);
       break;
 
     default:
@@ -164,7 +165,7 @@ parse_backslash (char **word, size_t *word_length, size_t *max_length,
       if (*word == NULL)
 	return WRDE_NOSPACE;
 
-      (*offset)++;
+      ++(*offset);
       break;
     }
 
@@ -363,12 +364,13 @@ parse_glob (char **word, size_t *word_length, size_t *max_length,
   if (ifs && !*ifs)
     {
       /* No field splitting allowed */
-      *word_length = strlen (globbuf.gl_pathv[0]);
-      *word = realloc (*word, 1 + *word_length);
+      size_t length = strlen (globbuf.gl_pathv[0]);
+      *word = realloc (*word, length + 1);
       if (*word == NULL)
 	goto no_space;
 
-      strcpy (*word, globbuf.gl_pathv[0]);
+      memcpy (*word, globbuf.gl_pathv[0], length + 1);
+      *word_length = length;
 
       for (match = 1; match < globbuf.gl_pathc && *word != NULL; ++match)
 	{
@@ -389,11 +391,10 @@ parse_glob (char **word, size_t *word_length, size_t *max_length,
   *word = NULL;
   *word_length = 0;
 
-  matching_word = malloc (1 + strlen (globbuf.gl_pathv[0]));
+  matching_word = __strdup (globbuf.gl_pathv[0]);
   if (matching_word == NULL)
     goto no_space;
 
-  strcpy (matching_word, globbuf.gl_pathv[0]);
   if (w_addword (pwordexp, matching_word) == WRDE_NOSPACE)
     goto no_space;
 
@@ -624,7 +625,7 @@ parse_arith (char **word, size_t *word_length, size_t *max_length,
 	case ')':
 	  if (--paren_depth == 0)
 	    {
-	      char *result;
+	      char result[21];	/* 21 = ceil(log10(2^64)) + 1 */
 	      int numresult = 0;
 
 	      if (bracket || words[1 + *offset] != ')')
@@ -637,9 +638,9 @@ parse_arith (char **word, size_t *word_length, size_t *max_length,
 		  eval_expr (expr, &numresult) != 0)
 		return WRDE_SYNTAX;
 
-	      result = __alloca (100);
-	      __snprintf (result, 100, "%d", numresult);
-	      *word = w_addstr (*word, word_length, max_length, result);
+	      result[20] = '\0';
+	      *word = w_addstr (*word, word_length, max_length,
+				_itoa_word (numresult, &result[20], 10, 0));
 	      free (expr);
 	      return *word ? 0 : WRDE_NOSPACE;
 	    }
@@ -652,16 +653,16 @@ parse_arith (char **word, size_t *word_length, size_t *max_length,
 	case ']':
 	  if (bracket && paren_depth == 1)
 	    {
-	      char *result;
+	      char result[21];	/* 21 = ceil(log10(2^64)) + 1 */
 	      int numresult = 0;
 
 	      /* Go - evaluate. */
 	      if (*expr && eval_expr (expr, &numresult) != 0)
 		return WRDE_SYNTAX;
 
-	      result = __alloca (100);
-	      __snprintf (result, 100, "%d", numresult);
-	      *word = w_addstr (*word, word_length, max_length, result);
+	      result[20] = '\0';
+	      *word = w_addstr (*word, word_length, max_length,
+				_itoa_word (numresult, &result[20], 10, 0));
 	      free (expr);
 	      return *word ? 0 : WRDE_NOSPACE;
 	    }
@@ -727,6 +728,8 @@ exec_comm (char *comm, char **word, size_t *word_length, size_t *max_length,
   if (pid == 0)
     {
       /* Child */
+      const char *args[4] = { _PATH_BSHELL, "-c", comm, NULL };
+
       /* Redirect input and output */
       dup2 (fildes[1], 1);
 
@@ -734,10 +737,10 @@ exec_comm (char *comm, char **word, size_t *word_length, size_t *max_length,
       if ((flags & WRDE_SHOWERR) == 0)
 	close (2);
 
-      execl (_PATH_BSHELL, _PATH_BSHELL, "-c", comm, NULL);
+      __execve (_PATH_BSHELL, (char *const *) args, __environ);
 
-      /* Bad. What now? */
-      exit (1);
+      /* Bad.  What now?  */
+      abort ();
     }
 
   /* Parent */
@@ -752,7 +755,7 @@ exec_comm (char *comm, char **word, size_t *word_length, size_t *max_length,
 	{
 	  if ((buflen = read (fildes[0], buffer, bufsize)) < 1)
 	    {
-	      if (waitpid (pid, NULL, WNOHANG) == 0)
+	      if (__waitpid (pid, NULL, WNOHANG) == 0)
 		continue;
 	      if ((buflen = read (fildes[0], buffer, bufsize)) < 1)
 		break;
@@ -780,7 +783,7 @@ exec_comm (char *comm, char **word, size_t *word_length, size_t *max_length,
     {
       if ((buflen = read (fildes[0], buffer, bufsize)) < 1)
 	{
-	  if (waitpid (pid, NULL, WNOHANG) == 0)
+	  if (__waitpid (pid, NULL, WNOHANG) == 0)
 	    continue;
 	  if ((read (fildes[0], buffer, bufsize)) < 1)
 	    break;
@@ -856,7 +859,7 @@ parse_comm (char **word, size_t *word_length, size_t *max_length,
 	  break;
 
 	case '(':
-	  paren_depth++;
+	  ++paren_depth;
 	default:
 	  comm = w_addchar (comm, &comm_length, &comm_maxlen, words[*offset]);
 	  if (comm == NULL)