[PATCH v4 3/8] imap-send: use run-command API for tunneling

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Signed-off-by: Erik Faye-Lund <kusmabite@xxxxxxxxx>
---
 imap-send.c |   37 ++++++++++++++++---------------------
 1 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/imap-send.c b/imap-send.c
index 7216453..72ed640 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -24,6 +24,7 @@
 
 #include "cache.h"
 #include "exec_cmd.h"
+#include "run-command.h"
 #ifdef NO_OPENSSL
 typedef void *SSL;
 #endif
@@ -940,8 +941,7 @@ static struct store *imap_open_store(struct imap_server_conf *srvc)
 	struct imap_store *ctx;
 	struct imap *imap;
 	char *arg, *rsp;
-	int s = -1, a[2], preauth;
-	pid_t pid;
+	int s = -1, preauth;
 
 	ctx = xcalloc(sizeof(*ctx), 1);
 
@@ -952,29 +952,24 @@ static struct store *imap_open_store(struct imap_server_conf *srvc)
 	/* open connection to IMAP server */
 
 	if (srvc->tunnel) {
-		imap_info("Starting tunnel '%s'... ", srvc->tunnel);
+		const char *argv[4];
+		struct child_process tunnel = {0};
 
-		if (socketpair(PF_UNIX, SOCK_STREAM, 0, a)) {
-			perror("socketpair");
-			exit(1);
-		}
+		imap_info("Starting tunnel '%s'... ", srvc->tunnel);
 
-		pid = fork();
-		if (pid < 0)
-			_exit(127);
-		if (!pid) {
-			if (dup2(a[0], 0) == -1 || dup2(a[0], 1) == -1)
-				_exit(127);
-			close(a[0]);
-			close(a[1]);
-			execl("/bin/sh", "sh", "-c", srvc->tunnel, NULL);
-			_exit(127);
-		}
+		argv[0] = "sh";
+		argv[1] = "-c";
+		argv[2] = srvc->tunnel;
+		argv[3] = NULL;
 
-		close(a[0]);
+		tunnel.argv = argv;
+		tunnel.in = -1;
+		tunnel.out = -1;
+		if (start_command(&tunnel))
+			die("cannot start proxy %s", argv[0]);
 
-		imap->buf.sock.fd[0] = a[1];
-		imap->buf.sock.fd[1] = dup(a[1]);
+		imap->buf.sock.fd[0] = tunnel.out;
+		imap->buf.sock.fd[1] = tunnel.in;
 
 		imap_info("ok\n");
 	} else {
-- 
1.6.5.15.g5f078

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