diff options
| author | Damien Miller <djm@mindrot.org> | 2006-03-31 23:11:07 +1100 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2006-03-31 23:11:07 +1100 |
| commit | 57c4e875f88ee7e6eac35e522be51618020cdaa7 (patch) | |
| tree | 525ffc1cac574147fc35c2264a2c0148aa84e4d5 /channels.c | |
| parent | ddd63ab1d0acaa41a41d0afe9f79adc38ecbd7a7 (diff) | |
- deraadt@cvs.openbsd.org 2006/03/28 01:52:28
[channels.c]
do not accept unreasonable X ports numbers; ok djm
Diffstat (limited to 'channels.c')
| -rw-r--r-- | channels.c | 16 |
1 files changed, 8 insertions, 8 deletions
@@ -1,4 +1,4 @@ -/* $OpenBSD: channels.c,v 1.247 2006/03/25 18:58:10 deraadt Exp $ */ +/* $OpenBSD: channels.c,v 1.248 2006/03/28 01:52:28 deraadt Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -2886,12 +2886,12 @@ connect_local_xsocket(u_int dnr) int x11_connect_display(void) { - int display_number, sock = 0; + u_int display_number; const char *display; char buf[1024], *cp; struct addrinfo hints, *ai, *aitop; char strport[NI_MAXSERV]; - int gaierr; + int gaierr, sock = 0; /* Try to open a socket for the local X server. */ display = getenv("DISPLAY"); @@ -2911,7 +2911,7 @@ x11_connect_display(void) if (strncmp(display, "unix:", 5) == 0 || display[0] == ':') { /* Connect to the unix domain socket. */ - if (sscanf(strrchr(display, ':') + 1, "%d", &display_number) != 1) { + if (sscanf(strrchr(display, ':') + 1, "%u", &display_number) != 1) { error("Could not parse display number from DISPLAY: %.100s", display); return -1; @@ -2936,7 +2936,7 @@ x11_connect_display(void) } *cp = 0; /* buf now contains the host name. But first we parse the display number. */ - if (sscanf(cp + 1, "%d", &display_number) != 1) { + if (sscanf(cp + 1, "%u", &display_number) != 1) { error("Could not parse display number from DISPLAY: %.100s", display); return -1; @@ -2946,7 +2946,7 @@ x11_connect_display(void) memset(&hints, 0, sizeof(hints)); hints.ai_family = IPv4or6; hints.ai_socktype = SOCK_STREAM; - snprintf(strport, sizeof strport, "%d", 6000 + display_number); + snprintf(strport, sizeof strport, "%u", 6000 + display_number); if ((gaierr = getaddrinfo(buf, strport, &hints, &aitop)) != 0) { error("%.100s: unknown host. (%s)", buf, gai_strerror(gaierr)); return -1; @@ -2960,7 +2960,7 @@ x11_connect_display(void) } /* Connect it to the display. */ if (connect(sock, ai->ai_addr, ai->ai_addrlen) < 0) { - debug2("connect %.100s port %d: %.100s", buf, + debug2("connect %.100s port %u: %.100s", buf, 6000 + display_number, strerror(errno)); close(sock); continue; @@ -2970,7 +2970,7 @@ x11_connect_display(void) } freeaddrinfo(aitop); if (!ai) { - error("connect %.100s port %d: %.100s", buf, 6000 + display_number, + error("connect %.100s port %u: %.100s", buf, 6000 + display_number, strerror(errno)); return -1; } |