netcat-openbsd/getservbyname.patch

25 lines
736 B
Diff

Index: netcat-openbsd-1.89/netcat.c
===================================================================
--- netcat-openbsd-1.89.orig/netcat.c 2008-01-22 20:39:46.000000000 -0500
+++ netcat-openbsd-1.89/netcat.c 2008-01-22 20:43:36.000000000 -0500
@@ -819,11 +819,18 @@
void
build_ports(char *p)
{
+ struct servent *sv;
char *n, *endp;
int hi, lo, cp;
int x = 0;
- if ((n = strchr(p, '-')) != NULL) {
+ sv = getservbyname(p, uflag ? "udp" : "tcp");
+ if (sv) {
+ portlist[0] = calloc(1, PORT_MAX_LEN);
+ if (portlist[0] == NULL)
+ err(1, NULL);
+ snprintf(portlist[0], PORT_MAX_LEN, "%d", ntohs(sv->s_port));
+ } else if ((n = strchr(p, '-')) != NULL) {
if (lflag)
errx(1, "Cannot use -l with multiple ports!");