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Diffstat (limited to 'bsd-bindresvport.c')
-rw-r--r--bsd-bindresvport.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/bsd-bindresvport.c b/bsd-bindresvport.c
index 04780673..15bb667d 100644
--- a/bsd-bindresvport.c
+++ b/bsd-bindresvport.c
@@ -61,6 +61,7 @@ bindresvport_af(sd, sa, af)
struct sockaddr_in *sin;
struct sockaddr_in6 *sin6;
u_int16_t *portp;
+ u_int16_t port;
int salen;
int i;
@@ -83,10 +84,13 @@ bindresvport_af(sd, sa, af)
}
sa->sa_family = af;
- if (*portp == 0)
- *portp = (u_int16_t)(arc4random() % NPORTS) + STARTPORT;
+ port = ntohs(*portp);
+ if (port == 0)
+ port = (arc4random() % NPORTS) + STARTPORT;
for(i = 0; i < NPORTS; i++) {
+ *portp = htons(port);
+
error = bind(sd, sa, salen);
/* Terminate on success */
@@ -97,7 +101,9 @@ bindresvport_af(sd, sa, af)
if ((error < 0) && !((errno == EADDRINUSE) || (errno == EINVAL)))
break;
- *portp = (i % NPORTS) + STARTPORT;
+ port++;
+ if (port > ENDPORT)
+ port = STARTPORT;
}
return (error);