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Update.

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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.
This commit is contained in:
Ulrich Drepper
1997-11-06 00:02:46 +00:00
parent 1618c59038
commit 86187531d3
50 changed files with 808 additions and 581 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
stdlib/canonicalize.c
View File

@@ -45,6 +45,22 @@ canonicalize (const char *name, char *resolved)
long int path_max;
int num_links = 0;
if (name == NULL || resolved == NULL)
{
/* As per Single Unix Specification V2 we must return an error if
either parameter is a null pointer. */
__set_errno (EINVAL);
return NULL;
}
if (name[0] == '\0')
{
/* As per Single Unix Specification V2 we must return an error if
the name argument points to an empty string. */
__set_errno (ENOENT);
return NULL;
}
#ifdef PATH_MAX
path_max = PATH_MAX;
#else
@@ -73,21 +89,23 @@ canonicalize (const char *name, char *resolved)
struct stat st;
int n;
/* skip sequence of multiple path-separators: */
/* Skip sequence of multiple path-separators. */
while (*start == '/') ++start;
/* find end of path component: */
/* Find end of path component. */
for (end = start; *end && *end != '/'; ++end);
if (end - start == 0)
break;
else if (strncmp (start, ".", end - start) == 0)
/* nothing */;
else if (strncmp (start, "..", end - start) == 0) {
/* back up to previous component, ignore if at root already: */
if (dest > rpath + 1)
while ((--dest)[-1] != '/');
} else
else if (strncmp (start, "..", end - start) == 0)
{
/* Back up to previous component, ignore if at root already. */
if (dest > rpath + 1)
while ((--dest)[-1] != '/');
}
else
{
size_t new_size;
@@ -112,8 +130,7 @@ canonicalize (const char *name, char *resolved)
return NULL;
}
memcpy (dest, start, end - start);
dest += end - start;
dest = __mempcpy (dest, start, end - start);
*dest = '\0';
if (__lstat (rpath, &st) < 0)
@@ -146,8 +163,8 @@ canonicalize (const char *name, char *resolved)
}
/* Careful here, end may be a pointer into extra_buf... */
memcpy (&buf[n], end, len + 1);
strcpy (extra_buf, buf);
memmove (&extra_buf[n], end, len + 1);
memcpy (extra_buf, buf, n);
name = end = extra_buf;
if (buf[0] == '/')