gconv: Use 64-bit interfaces in gconv_parseconfdir (bug 29583)

Message ID 87czbrj037.fsf@oldenburg.str.redhat.com
State Committed
Commit f97905f24631097af325d6a231093071c3077a5f
Delegated to: Adhemerval Zanella Netto
Headers
Series gconv: Use 64-bit interfaces in gconv_parseconfdir (bug 29583) |

Checks

Context Check Description
dj/TryBot-apply_patch success Patch applied to master at the time it was sent
dj/TryBot-32bit success Build for i686

Commit Message

Florian Weimer Sept. 19, 2022, 7:27 a.m. UTC
  It's possible that inode numbers are outside the 32-bit range.
The existing code only handles the in-libc case correctly, and
still uses the legacy interfaces when building iconv.

Suggested-by: Helge Deller <deller@gmx.de>

Tested on i686-linux-gnu and x86_64-linux-gnu.

---
 iconv/gconv_parseconfdir.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)


base-commit: 300946f0506e9cf12f16fc11eeea36c24cde7c82
  

Comments

Andreas Schwab Sept. 19, 2022, 2:08 p.m. UTC | #1
On Sep 19 2022, Florian Weimer via Libc-alpha wrote:

> It's possible that inode numbers are outside the 32-bit range.
> The existing code only handles the in-libc case correctly, and
> still uses the legacy interfaces when building iconv.

Ok.
  

Patch

diff --git a/iconv/gconv_parseconfdir.h b/iconv/gconv_parseconfdir.h
index 79398a980c..741cf7c67e 100644
--- a/iconv/gconv_parseconfdir.h
+++ b/iconv/gconv_parseconfdir.h
@@ -29,14 +29,14 @@ 
 # define isspace(__c) __isspace_l ((__c), _nl_C_locobj_ptr)
 # define asprintf __asprintf
 # define opendir __opendir
-# define readdir __readdir
+# define readdir64 __readdir64
 # define closedir __closedir
 # define mempcpy __mempcpy
-# define struct_stat struct __stat64_t64
-# define lstat __lstat64_time64
+# define struct_stat64 struct __stat64_t64
+# define lstat64 __lstat64_time64
 # define feof_unlocked __feof_unlocked
 #else
-# define struct_stat struct stat
+# define struct_stat64 struct stat64
 #endif
 
 /* Name of the file containing the module information in the directories
@@ -148,8 +148,8 @@  gconv_parseconfdir (const char *prefix, const char *dir, size_t dir_len)
   DIR *confdir = opendir (buf);
   if (confdir != NULL)
     {
-      struct dirent *ent;
-      while ((ent = readdir (confdir)) != NULL)
+      struct dirent64 *ent;
+      while ((ent = readdir64 (confdir)) != NULL)
 	{
 	  if (ent->d_type != DT_REG && ent->d_type != DT_UNKNOWN)
 	    continue;
@@ -161,12 +161,12 @@  gconv_parseconfdir (const char *prefix, const char *dir, size_t dir_len)
 	      && strcmp (ent->d_name + len - strlen (suffix), suffix) == 0)
 	    {
 	      char *conf;
-	      struct_stat st;
+	      struct_stat64 st;
 	      if (asprintf (&conf, "%s/%s", buf, ent->d_name) < 0)
 		continue;
 
 	      if (ent->d_type != DT_UNKNOWN
-		  || (lstat (conf, &st) != -1 && S_ISREG (st.st_mode)))
+		  || (lstat64 (conf, &st) != -1 && S_ISREG (st.st_mode)))
 		found |= read_conf_file (conf, dir, dir_len);
 
 	      free (conf);