[BZ #295]

Update.
2004-08-04  Jakub Jelinek  <jakub@redhat.com>

	* resolv/inet_pton.c (inet_pton4): Disallow octal numbers.  Reported
	by A. Guru <a.guru@sympatico.ca>.  [BZ #295]

diff --git a/ChangeLog b/ChangeLog
index 5679173..a246a17 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-08-04  Jakub Jelinek  <jakub@redhat.com>
+
+       * resolv/inet_pton.c (inet_pton4): Disallow octal numbers.  Reported
+       by A. Guru <a.guru@sympatico.ca>.  [BZ #295]
+
 2004-08-05  Ulrich Drepper  <drepper@redhat.com>
 
        * po/nl.po: Update from translation team.

diff --git a/resolv/inet_pton.c b/resolv/inet_pton.c
index 1a84835..c507013 100644 (file)
--- a/resolv/inet_pton.c
+++ b/resolv/inet_pton.c
@@ -69,7 +69,8 @@ libc_hidden_def (inet_pton)
 
 /* int
  * inet_pton4(src, dst)
- *     like inet_aton() but without all the hexadecimal and shorthand.
+ *     like inet_aton() but without all the hexadecimal, octal (with the
+ *     exception of 0) and shorthand.
  * return:
  *     1 if `src' is a valid dotted quad, else 0.
  * notice:
@@ -94,6 +95,8 @@ inet_pton4(src, dst)
                if (ch >= '0' && ch <= '9') {
                        u_int new = *tp * 10 + (ch - '0');
 
+                       if (saw_digit && *tp == 0)
+                               return (0);
                        if (new > 255)
                                return (0);
                        *tp = new;