Fix possible array overrun.

If there are 16 slots, then the maximum index is 15.

Fix possible array overrun.
If there are 16 slots, then the maximum index is 15.
4153c4bd · Antonin Décimo · Juliusz Chroboczek · 121f4956 · 4153c4bd
Commit 4153c4bd authored Apr 11, 2020 by Antonin Décimo Committed by Juliusz Chroboczek Apr 11, 2020
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sroamd.c sroamd.c +2 -2

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--- a/sroamd.c
+++ b/sroamd.c
@@ -241,11 +241,11 @@ main(int argc, char **argv)
            int af;
            af = parse_address(optarg, buf);
            if(af == 4) {
-                if(numdnsv4 > 16)
+                if(numdnsv4 >= 16)
                    goto usage;
                memcpy(dnsv4[numdnsv4++], buf, 4);
            } else if(af == 6) {
-                if(numdnsv6 > 16)
+                if(numdnsv6 >= 16)
                    goto usage;
                memcpy(dnsv6[numdnsv6++], buf, 16);
            } else {