[SCM] GNU Inetutils branch, master, updated. inetutils-1_9_1-198-g73d53fe

[Mats Erik Andersson]

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- Log -----------------------------------------------------------------
http://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=73d53fe325d456898f1df0c22e79f0e6a9d797e2


commit 73d53fe325d456898f1df0c22e79f0e6a9d797e2
Author: Mats Erik Andersson <address@hidden>
Date:   Fri Nov 2 10:49:52 2012 +0100

    telnet: Port sanity check.

diff --git a/ChangeLog b/ChangeLog
index ffc7b76..d54da07 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-10-02  Mats Erik Andersson  <address@hidden>
+
+       * telnet/commands.c (tn): New block with sanity check of
+       numerical port, being out of range, or mixed with letters.
+
 2012-10-01  Mats Erik Andersson  <address@hidden>
 
        ftp: Build without readline support.
diff --git a/telnet/commands.c b/telnet/commands.c
index 0375e72..e49aace 100644
--- a/telnet/commands.c
+++ b/telnet/commands.c
@@ -2544,6 +2544,25 @@ tn (int argc, char *argv[])
        }
       else
        telnetport = 0;
+      if (*portp >= '0' && *portp <= '9')
+       {
+         long long int val;
+         char *endp;
+
+         val = strtoll (portp, &endp, 10);
+
+         if ((errno == ERANGE && (val == LLONG_MAX || val == LLONG_MIN))
+             || (*endp == '\0' && (val < 1 || val > 65535)))
+           {
+             printf ("Port number %s is out of range.\n", portp);
+             return 0;
+           }
+         else if (*endp)
+           {
+             printf ("Invalid port name '%s'.\n", portp);
+             return 0;
+           }
+       }
     }
 
   free (hostname);

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog         |    5 +++++
 telnet/commands.c |   19 +++++++++++++++++++
 2 files changed, 24 insertions(+), 0 deletions(-)


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