Solaris: vasprint fix for %llu crash

vasprint now inturn call gf_vasprintf, which calls vsnprintf.
vsnprintf allocates buffer of required size, and hence prevents
the sigsegv seen in vasprintf w.r.t %llu

Signed-off-by: shishir gowda <shishirng@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 1058 (vasprintf dumps core when %llu is involved)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1058

1 files changed, 1 insertions, 87 deletions

diff --git a/libglusterfs/src/compat.c b/libglusterfs/src/compat.c
index 081869e4b0f..2102216317d 100644
--- a/libglusterfs/src/compat.c
+++ b/libglusterfs/src/compat.c
@@ -311,93 +311,7 @@ char* strsep(char** str, const char* delims)
 int
 vasprintf (char **result, const char *format, va_list args)
 {
-  const char *p = format;
-  /* Add one to make sure that it is never zero, which might cause malloc
-     to return NULL.  */
-  int total_width = strlen (format) + 1;
-  va_list ap;
-
-  /* vasprintf does not work on Solaris when memcpy is called on va_list pointers.
-   * Replacing it with va_copy which works on Solaris
-   */
-  va_copy (ap, args);
-
-  while (*p != '\0')
-    {
-      if (*p++ == '%')
-	{
-	  while (strchr ("-+ #0", *p))
-	    ++p;
-	  if (*p == '*')
-	    {
-	      ++p;
-	      total_width += abs (va_arg (ap, int));
-	    }
-	  else
-            {
-              char *endp;  
-              total_width += strtoul (p, &endp, 10);
-              p = endp;
-            }
-	  if (*p == '.')
-	    {
-	      ++p;
-	      if (*p == '*')
-		{
-		  ++p;
-		  total_width += abs (va_arg (ap, int));
-		}
-	      else
-                {
-                  char *endp;
-                  total_width += strtoul (p, &endp, 10);
-                  p = endp;
-                }
-	    }
-	  while (strchr ("hlL", *p))
-	    ++p;
-	  /* Should be big enough for any format specifier except %s
-             and floats.  */
-	  total_width += 30;
-	  switch (*p)
-	    {
-	    case 'd':
-	    case 'i':
-	    case 'o':
-	    case 'u':
-	    case 'x':
-	    case 'X':
-	    case 'c':
-	      (void) va_arg (ap, int);
-	      break;
-	    case 'f':
-	    case 'e':
-	    case 'E':
-	    case 'g':
-	    case 'G':
-	      (void) va_arg (ap, double);
-	      /* Since an ieee double can have an exponent of 307, we'll
-		 make the buffer wide enough to cover the gross case. */
-	      total_width += 307;
-	    
-	    case 's':
-	      total_width += strlen (va_arg (ap, char *));
-	      break;
-	    case 'p':
-	    case 'n':
-	      (void) va_arg (ap, char *);
-	      break;
-	    }
-	}
-    }
-
-  va_end (ap);
-
-  *result = malloc (total_width);
-  if (*result != NULL)
-    return vsprintf (*result, format, args);
-  else
-    return 0;
+  return gf_vasprintf(result, format, args);
 }
 
 int