r8671: use much shorter names for the selftest directory and socket wrapper

code. I'm afraid this is needed by irix 6.4 which silently truncates
names in unix domain sockets in recvfrom() to 16 chars. My apologies
for having to move to such short names :-(
(This used to be commit f9693e313da67e1347a607db5d3ebbf36e02a77a)

1 files changed, 16 insertions, 4 deletions

diff --git a/source4/lib/socket_wrapper/socket_wrapper.c b/source4/lib/socket_wrapper/socket_wrapper.c
index 940883a45f..d0d08d22b9 100644
--- a/source4/lib/socket_wrapper/socket_wrapper.c
+++ b/source4/lib/socket_wrapper/socket_wrapper.c
@@ -57,6 +57,14 @@
 #define real_close close
 #endif
 
+/* we need to use a very terse format here as IRIX 6.4 silently
+   truncates names to 16 chars, so if we use a longer name then we
+   can't tell which port a packet came from with recvfrom() 
+   
+   with this format we have 8 chars left for the directory name
+*/
+#define SOCKET_FORMAT "%u_%u"
+
 static struct sockaddr *sockaddr_dup(const void *data, socklen_t len)
 {
 	struct sockaddr *ret = (struct sockaddr *)malloc(len);
@@ -102,7 +110,7 @@ static int convert_un_in(const struct sockaddr_un *un, struct sockaddr_in *in, s
 	p = strrchr(un->sun_path, '/');
 	if (p) p++; else p = un->sun_path;
 
-	if (sscanf(p, "sock_ip_%d_%u", &type, &prt) == 2) {
+	if (sscanf(p, SOCKET_FORMAT, &type, &prt) == 2) {
 		in->sin_port = htons(prt);
 	}
 	in->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
@@ -119,12 +127,12 @@ static int convert_in_un(struct socket_info *si, const struct sockaddr_in *in, s
 		/* handle auto-allocation of ephemeral ports */
 		prt = 5000;
 		do {
-			snprintf(un->sun_path, sizeof(un->sun_path), "%s/sock_ip_%d_%u", 
+			snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT, 
 				 getenv("SOCKET_WRAPPER_DIR"), type, ++prt);
 		} while (stat(un->sun_path, &st) == 0 && prt < 10000);
 		((struct sockaddr_in *)si->myname)->sin_port = htons(prt);
 	} 
-	snprintf(un->sun_path, sizeof(un->sun_path), "%s/sock_ip_%d_%u", 
+	snprintf(un->sun_path, sizeof(un->sun_path), "%s/"SOCKET_FORMAT, 
 		 getenv("SOCKET_WRAPPER_DIR"), type, prt);
 	return 0;
 }
@@ -230,6 +238,8 @@ int swrap_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
 		return real_accept(s, addr, addrlen);
 	}
 
+	memset(&un_addr, 0, sizeof(un_addr));
+
 	ret = real_accept(s, (struct sockaddr *)&un_addr, &un_addrlen);
 	if (ret == -1) return ret;
 
@@ -270,7 +280,7 @@ static int swrap_auto_bind(struct socket_info *si)
 	
 	for (i=0;i<1000;i++) {
 		snprintf(un_addr.sun_path, sizeof(un_addr.sun_path), 
-			 "%s/sock_ip_%u_%u", getenv("SOCKET_WRAPPER_DIR"), 
+			 "%s/"SOCKET_FORMAT, getenv("SOCKET_WRAPPER_DIR"), 
 			 SOCK_DGRAM, i + 10000);
 		if (bind(si->fd, (struct sockaddr *)&un_addr, 
 			 sizeof(un_addr)) == 0) {
@@ -458,6 +468,8 @@ ssize_t swrap_recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr
 		return real_recvfrom(s, buf, len, flags, from, fromlen);
 	}
 
+	/* irix 6.4 forgets to null terminate the sun_path string :-( */
+	memset(&un_addr, 0, sizeof(un_addr));
 	ret = real_recvfrom(s, buf, len, flags, (struct sockaddr *)&un_addr, &un_addrlen);
 	if (ret == -1) 
 		return ret;