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add some error checking, but fix the call to bind which really should have a +1 in it.

This commit is contained in:
Isaac Connor 2016-04-28 16:32:50 -04:00
parent 629f141734
commit 0dc2987b84
1 changed files with 14 additions and 3 deletions
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17
src/zm_stream.cpp
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@ -291,7 +291,11 @@ void StreamBase::openComms()
if ( connkey > 0 )
{
snprintf( sock_path_lock, sizeof(sock_path_lock), "%s/zms-%06d.lock", config.path_socks, connkey);
unsigned int length = snprintf( sock_path_lock, sizeof(sock_path_lock), "%s/zms-%06d.lock", config.path_socks, connkey);
if ( length >= sizeof(sock_path_lock) ) {
Warning("Socket lock path was truncated.");
length = sizeof(sock_path_lock)-1;
}
lock_fd = open(sock_path_lock, O_CREAT|O_WRONLY, S_IRUSR | S_IWUSR);
if ( lock_fd <= 0 )
@ -318,12 +322,19 @@ void StreamBase::openComms()
Fatal( "Can't create socket: %s", strerror(errno) );
}
snprintf( loc_sock_path, sizeof(loc_sock_path), "%s/zms-%06ds.sock", config.path_socks, connkey );
length = snprintf( loc_sock_path, sizeof(loc_sock_path), "%s/zms-%06ds.sock", config.path_socks, connkey );
if ( length >= sizeof(loc_sock_path) ) {
Warning("Socket path was truncated.");
length = sizeof(loc_sock_path)-1;
}
unlink( loc_sock_path );
if ( sizeof(loc_addr.sun_path) < length ) {
Error("Not enough space %d in loc_addr.sun_path for socket file %s", sizeof(loc_addr.sun_path), loc_sock_path );
}
strncpy( loc_addr.sun_path, loc_sock_path, sizeof(loc_addr.sun_path) );
loc_addr.sun_family = AF_UNIX;
if ( bind( sd, (struct sockaddr *)&loc_addr, strlen(loc_addr.sun_path)+sizeof(loc_addr.sun_family)) < 0 )
if ( bind( sd, (struct sockaddr *)&loc_addr, strlen(loc_addr.sun_path)+sizeof(loc_addr.sun_family))+1 < 0 )
{
Fatal( "Can't bind: %s", strerror(errno) );
}