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-rw-r--r--source4/lib/socket_wrapper/socket_wrapper.c20
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;