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glibc/glibc-upstream-2.34-190.patch
Carlos O'Donell 8f8d2743e4 Sync with upstream branch release/2.34/master 
Upstream commit: c66c92181ddbd82306537a608e8c0282587131de

- posix/glob.c: update from gnulib (BZ#25659)
- linux: Fix fchmodat with AT_SYMLINK_NOFOLLOW for 64 bit time_t (BZ#29097)
2022-04-28 14:48:17 -04:00

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commit c66c92181ddbd82306537a608e8c0282587131de
Author: DJ Delorie <dj@redhat.com>
Date: Wed Mar 30 17:44:02 2022 -0400
posix/glob.c: update from gnulib
Copied from gnulib/lib/glob.c in order to fix rhbz 1982608
Also fixes swbz 25659
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit 7c477b57a31487eda516db02b9e04f22d1a6e6af)
diff --git a/posix/glob.c b/posix/glob.c
index 593a4c358f3d42e5..6af310a1aa31401a 100644
--- a/posix/glob.c
+++ b/posix/glob.c
@@ -21,13 +21,14 @@
optimizes away the pattern == NULL test below. */
# define _GL_ARG_NONNULL(params)
-# include <config.h>
+# include <libc-config.h>
#endif
#include <glob.h>
#include <errno.h>
+#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdbool.h>
@@ -56,6 +57,8 @@
# define sysconf(id) __sysconf (id)
# define closedir(dir) __closedir (dir)
# define opendir(name) __opendir (name)
+# undef dirfd
+# define dirfd(str) __dirfd (str)
# define readdir(str) __readdir64 (str)
# define getpwnam_r(name, bufp, buf, len, res) \
__getpwnam_r (name, bufp, buf, len, res)
@@ -69,11 +72,8 @@
# ifndef GLOB_LSTAT
# define GLOB_LSTAT gl_lstat
# endif
-# ifndef GLOB_STAT64
-# define GLOB_STAT64 __stat64
-# endif
-# ifndef GLOB_LSTAT64
-# define GLOB_LSTAT64 __lstat64
+# ifndef GLOB_FSTATAT64
+# define GLOB_FSTATAT64 __fstatat64
# endif
# include <shlib-compat.h>
#else /* !_LIBC */
@@ -88,8 +88,7 @@
# define struct_stat struct stat
# define struct_stat64 struct stat
# define GLOB_LSTAT gl_lstat
-# define GLOB_STAT64 stat
-# define GLOB_LSTAT64 lstat
+# define GLOB_FSTATAT64 fstatat
#endif /* _LIBC */
#include <fnmatch.h>
@@ -215,7 +214,8 @@ glob_lstat (glob_t *pglob, int flags, const char *fullname)
} ust;
return (__glibc_unlikely (flags & GLOB_ALTDIRFUNC)
? pglob->GLOB_LSTAT (fullname, &ust.st)
- : GLOB_LSTAT64 (fullname, &ust.st64));
+ : GLOB_FSTATAT64 (AT_FDCWD, fullname, &ust.st64,
+ AT_SYMLINK_NOFOLLOW));
}
/* Set *R = A + B. Return true if the answer is mathematically
@@ -257,7 +257,8 @@ is_dir (char const *filename, int flags, glob_t const *pglob)
struct_stat64 st64;
return (__glibc_unlikely (flags & GLOB_ALTDIRFUNC)
? pglob->gl_stat (filename, &st) == 0 && S_ISDIR (st.st_mode)
- : GLOB_STAT64 (filename, &st64) == 0 && S_ISDIR (st64.st_mode));
+ : (GLOB_FSTATAT64 (AT_FDCWD, filename, &st64, 0) == 0
+ && S_ISDIR (st64.st_mode)));
}
/* Find the end of the sub-pattern in a brace expression. */
@@ -747,6 +748,8 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
else
{
#ifndef WINDOWS32
+ /* Recognize ~user as a shorthand for the specified user's home
+ directory. */
char *end_name = strchr (dirname, '/');
char *user_name;
int malloc_user_name = 0;
@@ -885,7 +888,22 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
}
scratch_buffer_free (&pwtmpbuf);
}
-#endif /* !WINDOWS32 */
+#else /* WINDOWS32 */
+ /* On native Windows, access to a user's home directory
+ (via GetUserProfileDirectory) or to a user's environment
+ variables (via ExpandEnvironmentStringsForUser) requires
+ the credentials of the user. Therefore we cannot support
+ the ~user syntax on this platform.
+ Handling ~user specially (and treat it like plain ~) if
+ user is getenv ("USERNAME") would not be a good idea,
+ since it would make people think that ~user is supported
+ in general. */
+ if (flags & GLOB_TILDE_CHECK)
+ {
+ retval = GLOB_NOMATCH;
+ goto out;
+ }
+#endif /* WINDOWS32 */
}
}
@@ -1266,6 +1284,8 @@ glob_in_dir (const char *pattern, const char *directory, int flags,
{
size_t dirlen = strlen (directory);
void *stream = NULL;
+ struct scratch_buffer s;
+ scratch_buffer_init (&s);
# define GLOBNAMES_MEMBERS(nnames) \
struct globnames *next; size_t count; char *name[nnames];
struct globnames { GLOBNAMES_MEMBERS (FLEXIBLE_ARRAY_MEMBER) };
@@ -1337,6 +1357,7 @@ glob_in_dir (const char *pattern, const char *directory, int flags,
}
else
{
+ int dfd = dirfd (stream);
int fnm_flags = ((!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0)
| ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0));
flags |= GLOB_MAGCHAR;
@@ -1364,8 +1385,32 @@ glob_in_dir (const char *pattern, const char *directory, int flags,
if (flags & GLOB_ONLYDIR)
switch (readdir_result_type (d))
{
- case DT_DIR: case DT_LNK: case DT_UNKNOWN: break;
default: continue;
+ case DT_DIR: break;
+ case DT_LNK: case DT_UNKNOWN:
+ /* The filesystem was too lazy to give us a hint,
+ so we have to do it the hard way. */
+ if (__glibc_unlikely (dfd < 0 || flags & GLOB_ALTDIRFUNC))
+ {
+ size_t namelen = strlen (d.name);
+ size_t need = dirlen + 1 + namelen + 1;
+ if (s.length < need
+ && !scratch_buffer_set_array_size (&s, need, 1))
+ goto memory_error;
+ char *p = mempcpy (s.data, directory, dirlen);
+ *p = '/';
+ p += p[-1] != '/';
+ memcpy (p, d.name, namelen + 1);
+ if (! is_dir (s.data, flags, pglob))
+ continue;
+ }
+ else
+ {
+ struct_stat64 st64;
+ if (! (GLOB_FSTATAT64 (dfd, d.name, &st64, 0) == 0
+ && S_ISDIR (st64.st_mode)))
+ continue;
+ }
}
if (fnmatch (pattern, d.name, fnm_flags) == 0)
@@ -1497,5 +1542,6 @@ glob_in_dir (const char *pattern, const char *directory, int flags,
__set_errno (save);
}
+ scratch_buffer_free (&s);
return result;
}
diff --git a/sysdeps/unix/sysv/linux/glob64-time64.c b/sysdeps/unix/sysv/linux/glob64-time64.c
index a465f70905e5a8a3..95efe4c4f4624967 100644
--- a/sysdeps/unix/sysv/linux/glob64-time64.c
+++ b/sysdeps/unix/sysv/linux/glob64-time64.c
@@ -37,6 +37,7 @@
# define GLOB_LSTAT gl_lstat
# define GLOB_STAT64 __stat64_time64
# define GLOB_LSTAT64 __lstat64_time64
+# define GLOB_FSTATAT64 __fstatat64_time64
# define COMPILE_GLOB64 1
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