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--- plugins/check_snmp.c.old 2007-05-29 07:22:32.000000000 +0200
+++ plugins/check_snmp.c 2007-10-17 22:08:49.000000000 +0200
@@ -219,12 +219,16 @@ main (int argc, char **argv)
ptr = output;
- strcat(perfstr, "| ");
+ strncat(perfstr, "| ", sizeof(perfstr)-strlen(perfstr)-1);
while (ptr) {
char *foo;
+ unsigned int copylen;
foo = strstr (ptr, delimiter);
- strncat(perfstr, ptr, foo-ptr);
+ copylen = foo-ptr;
+ if (copylen > sizeof(perfstr)-strlen(perfstr)-1)
+ copylen = sizeof(perfstr)-strlen(perfstr)-1;
+ strncat(perfstr, ptr, copylen);
ptr = foo;
if (ptr == NULL)
@@ -357,11 +361,11 @@ main (int argc, char **argv)
i++;
- strcat(perfstr, "=");
- strcat(perfstr, show);
+ strncat(perfstr, "=", sizeof(perfstr)-strlen(perfstr)-1);
+ strncat(perfstr, show, sizeof(perfstr)-strlen(perfstr)-1);
if (type)
- strcat(perfstr, type);
- strcat(perfstr, " ");
+ strncat(perfstr, type, sizeof(perfstr)-strlen(perfstr)-1);
+ strncat(perfstr, " ", sizeof(perfstr)-strlen(perfstr)-1);
} /* end while (ptr) */
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