X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/c1cbe68ab4180069631d32e4fcdc67b9f6a9676a..9555d25824c6cc80227cc4c65980503935156cbe:/sshconnect.c

diff --git a/sshconnect.c b/sshconnect.c
index 92f0f380..33961e4d 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -13,9 +13,15 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: sshconnect.c,v 1.166 2005/06/17 22:53:47 djm Exp $");
 
-#include <openssl/bn.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+
+#include <ctype.h>
+#ifdef HAVE_PATHS_H
+#include <paths.h>
+#endif
 
 #include "ssh.h"
 #include "xmalloc.h"
@@ -31,13 +37,12 @@ RCSID("$OpenBSD: sshconnect.c,v 1.166 2005/06/17 22:53:47 djm Exp $");
 #include "readconf.h"
 #include "atomicio.h"
 #include "misc.h"
-
 #include "dns.h"
 
 char *client_version_string = NULL;
 char *server_version_string = NULL;
 
-int matching_host_key_dns = 0;
+static int matching_host_key_dns = 0;
 
 /* import */
 extern Options options;
@@ -404,7 +409,7 @@ ssh_exchange_identification(void)
 		for (i = 0; i < sizeof(buf) - 1; i++) {
 			size_t len = atomicio(read, connection_in, &buf[i], 1);
 
-			if (len != 1 && errno == EPIPE) 
+			if (len != 1 && errno == EPIPE)
 				fatal("ssh_exchange_identification: Connection closed by remote host");
 			else if (len != 1)
 				fatal("ssh_exchange_identification: read: %.100s", strerror(errno));
@@ -547,7 +552,7 @@ check_host_key(char *host, struct sockaddr *hostaddr, Key *host_key,
 	switch (hostaddr->sa_family) {
 	case AF_INET:
 		local = (ntohl(((struct sockaddr_in *)hostaddr)->
-		   sin_addr.s_addr) >> 24) == IN_LOOPBACKNET;
+		    sin_addr.s_addr) >> 24) == IN_LOOPBACKNET;
 		salen = sizeof(struct sockaddr_in);
 		break;
 	case AF_INET6:
@@ -604,7 +609,7 @@ check_host_key(char *host, struct sockaddr *hostaddr, Key *host_key,
 	file_key = key_new(host_key->type);
 
 	/*
-	 * Check if the host key is present in the user\'s list of known
+	 * Check if the host key is present in the user's list of known
 	 * hosts or in the systemwide list.
 	 */
 	host_file = user_hostfile;
@@ -680,8 +685,8 @@ check_host_key(char *host, struct sockaddr *hostaddr, Key *host_key,
 
 			if (show_other_keys(host, host_key))
 				snprintf(msg1, sizeof(msg1),
-				   "\nbut keys of different type are already"
-				   " known for this host.");
+				    "\nbut keys of different type are already"
+				    " known for this host.");
 			else
 				snprintf(msg1, sizeof(msg1), ".");
 			/* The default */
@@ -922,7 +927,7 @@ ssh_login(Sensitive *sensitive, const char *orighost,
 	host = xstrdup(orighost);
 	for (cp = host; *cp; cp++)
 		if (isupper(*cp))
-			*cp = tolower(*cp);
+			*cp = (char)tolower(*cp);
 
 	/* Exchange protocol version identification strings with the server. */
 	ssh_exchange_identification();
@@ -1035,3 +1040,39 @@ warn_changed_key(Key *host_key)
 
 	xfree(fp);
 }
+
+/*
+ * Execute a local command
+ */
+int
+ssh_local_cmd(const char *args)
+{
+	char *shell;
+	pid_t pid;
+	int status;
+
+	if (!options.permit_local_command ||
+	    args == NULL || !*args)
+		return (1);
+
+	if ((shell = getenv("SHELL")) == NULL)
+		shell = _PATH_BSHELL;
+
+	pid = fork();
+	if (pid == 0) {
+		debug3("Executing %s -c \"%s\"", shell, args);
+		execl(shell, shell, "-c", args, (char *)NULL);
+		error("Couldn't execute %s -c \"%s\": %s",
+		    shell, args, strerror(errno));
+		_exit(1);
+	} else if (pid == -1)
+		fatal("fork failed: %.100s", strerror(errno));
+	while (waitpid(pid, &status, 0) == -1)
+		if (errno != EINTR)
+			fatal("Couldn't wait for child: %s", strerror(errno));
+
+	if (!WIFEXITED(status))
+		return (1);
+
+	return (WEXITSTATUS(status));
+}