X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=inline;f=lib%2Fopenat-proc.c;h=4a470c5b9d0dc5cf34c18623c9762c6ed7619dfd;hb=8f3cd38b6c08109ec9edea0e7712e9a7a920a2d8;hp=51a8aa2cd8b7f586872d09b35f2ce2eeaf97cf7b;hpb=d60f3b0c6b0f93a601acd1cfd3923f94ca05abb0;p=gnulib.git

diff --git a/lib/openat-proc.c b/lib/openat-proc.c
index 51a8aa2cd..4a470c5b9 100644
--- a/lib/openat-proc.c
+++ b/lib/openat-proc.c
@@ -26,13 +26,12 @@
 #include <fcntl.h>
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
-#include "dirname.h"
 #include "intprops.h"
 #include "same-inode.h"
-#include "xalloc.h"
 
 /* The results of open() in this file are not used with fchdir,
    and we do not leak fds to any single-threaded code that could use stdio,
@@ -52,7 +51,8 @@
 /* Set BUF to the expansion of PROC_SELF_FD_FORMAT, using FD and FILE
    respectively for %d and %s.  If successful, return BUF if the
    result fits in BUF, dynamically allocated memory otherwise.  But
-   return NULL if /proc is not reliable.  */
+   return NULL if /proc is not reliable, either because the operating
+   system support is lacking or because memory is low.  */
 char *
 openat_proc_name (char buf[OPENAT_BUFFER_SIZE], int fd, char const *file)
 {
@@ -98,7 +98,13 @@ openat_proc_name (char buf[OPENAT_BUFFER_SIZE], int fd, char const *file)
   else
     {
       size_t bufsize = PROC_SELF_FD_NAME_SIZE_BOUND (strlen (file));
-      char *result = (bufsize < OPENAT_BUFFER_SIZE ? buf : xmalloc (bufsize));
+      char *result = buf;
+      if (OPENAT_BUFFER_SIZE < bufsize)
+        {
+          result = malloc (bufsize);
+          if (! result)
+            return NULL;
+        }
       sprintf (result, PROC_SELF_FD_FORMAT, fd, file);
       return result;
     }