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Diffstat (limited to 'monitor_fdpass.c')
-rw-r--r--monitor_fdpass.c56
1 files changed, 36 insertions, 20 deletions
diff --git a/monitor_fdpass.c b/monitor_fdpass.c
index 9f8e9cd55..a572302e8 100644
--- a/monitor_fdpass.c
+++ b/monitor_fdpass.c
@@ -1,4 +1,4 @@
1/* $OpenBSD: monitor_fdpass.c,v 1.12 2006/08/03 03:34:42 deraadt Exp $ */ 1/* $OpenBSD: monitor_fdpass.c,v 1.13 2007/09/04 03:21:03 djm Exp $ */
2/* 2/*
3 * Copyright 2001 Niels Provos <provos@citi.umich.edu> 3 * Copyright 2001 Niels Provos <provos@citi.umich.edu>
4 * All rights reserved. 4 * All rights reserved.
@@ -40,7 +40,7 @@
40#include "log.h" 40#include "log.h"
41#include "monitor_fdpass.h" 41#include "monitor_fdpass.h"
42 42
43void 43int
44mm_send_fd(int sock, int fd) 44mm_send_fd(int sock, int fd)
45{ 45{
46#if defined(HAVE_SENDMSG) && (defined(HAVE_ACCRIGHTS_IN_MSGHDR) || defined(HAVE_CONTROL_IN_MSGHDR)) 46#if defined(HAVE_SENDMSG) && (defined(HAVE_ACCRIGHTS_IN_MSGHDR) || defined(HAVE_CONTROL_IN_MSGHDR))
@@ -72,15 +72,21 @@ mm_send_fd(int sock, int fd)
72 msg.msg_iov = &vec; 72 msg.msg_iov = &vec;
73 msg.msg_iovlen = 1; 73 msg.msg_iovlen = 1;
74 74
75 if ((n = sendmsg(sock, &msg, 0)) == -1) 75 if ((n = sendmsg(sock, &msg, 0)) == -1) {
76 fatal("%s: sendmsg(%d): %s", __func__, fd, 76 error("%s: sendmsg(%d): %s", __func__, fd,
77 strerror(errno)); 77 strerror(errno));
78 if (n != 1) 78 return -1;
79 fatal("%s: sendmsg: expected sent 1 got %ld", 79 }
80
81 if (n != 1) {
82 error("%s: sendmsg: expected sent 1 got %ld",
80 __func__, (long)n); 83 __func__, (long)n);
84 return -1;
85 }
86 return 0;
81#else 87#else
82 fatal("%s: UsePrivilegeSeparation=yes not supported", 88 error("%s: file descriptor passing not supported", __func__);
83 __func__); 89 return -1;
84#endif 90#endif
85} 91}
86 92
@@ -111,29 +117,39 @@ mm_receive_fd(int sock)
111 msg.msg_controllen = sizeof(tmp); 117 msg.msg_controllen = sizeof(tmp);
112#endif 118#endif
113 119
114 if ((n = recvmsg(sock, &msg, 0)) == -1) 120 if ((n = recvmsg(sock, &msg, 0)) == -1) {
115 fatal("%s: recvmsg: %s", __func__, strerror(errno)); 121 error("%s: recvmsg: %s", __func__, strerror(errno));
116 if (n != 1) 122 return -1;
117 fatal("%s: recvmsg: expected received 1 got %ld", 123 }
124 if (n != 1) {
125 error("%s: recvmsg: expected received 1 got %ld",
118 __func__, (long)n); 126 __func__, (long)n);
127 return -1;
128 }
119 129
120#ifdef HAVE_ACCRIGHTS_IN_MSGHDR 130#ifdef HAVE_ACCRIGHTS_IN_MSGHDR
121 if (msg.msg_accrightslen != sizeof(fd)) 131 if (msg.msg_accrightslen != sizeof(fd)) {
122 fatal("%s: no fd", __func__); 132 error("%s: no fd", __func__);
133 return -1;
134 }
123#else 135#else
124 cmsg = CMSG_FIRSTHDR(&msg); 136 cmsg = CMSG_FIRSTHDR(&msg);
125 if (cmsg == NULL) 137 if (cmsg == NULL) {
126 fatal("%s: no message header", __func__); 138 error("%s: no message header", __func__);
139 return -1;
140 }
127#ifndef BROKEN_CMSG_TYPE 141#ifndef BROKEN_CMSG_TYPE
128 if (cmsg->cmsg_type != SCM_RIGHTS) 142 if (cmsg->cmsg_type != SCM_RIGHTS) {
129 fatal("%s: expected type %d got %d", __func__, 143 error("%s: expected type %d got %d", __func__,
130 SCM_RIGHTS, cmsg->cmsg_type); 144 SCM_RIGHTS, cmsg->cmsg_type);
145 return -1;
146 }
131#endif 147#endif
132 fd = (*(int *)CMSG_DATA(cmsg)); 148 fd = (*(int *)CMSG_DATA(cmsg));
133#endif 149#endif
134 return fd; 150 return fd;
135#else 151#else
136 fatal("%s: UsePrivilegeSeparation=yes not supported", 152 error("%s: file descriptor passing not supported", __func__);
137 __func__); 153 return -1;
138#endif 154#endif
139} 155}