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Annotation of embedaddon/strongswan/src/libstrongswan/networking/streams/stream_unix.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2013 Martin Willi
                      3:  * Copyright (C) 2013 revosec AG
                      4:  *
                      5:  * This program is free software; you can redistribute it and/or modify it
                      6:  * under the terms of the GNU General Public License as published by the
                      7:  * Free Software Foundation; either version 2 of the License, or (at your
                      8:  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
                      9:  *
                     10:  * This program is distributed in the hope that it will be useful, but
                     11:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     12:  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
                     13:  * for more details.
                     14:  */
                     15: 
                     16: #include <library.h>
                     17: #include <errno.h>
                     18: #include <unistd.h>
                     19: #include <limits.h>
                     20: 
                     21: #include "stream_unix.h"
                     22: 
                     23: /**
                     24:  * See header
                     25:  */
                     26: int stream_parse_uri_unix(char *uri, struct sockaddr_un *addr)
                     27: {
                     28:        if (!strpfx(uri, "unix://"))
                     29:        {
                     30:                return -1;
                     31:        }
                     32:        uri += strlen("unix://");
                     33: 
                     34:        memset(addr, 0, sizeof(*addr));
                     35:        addr->sun_family = AF_UNIX;
                     36:        strncpy(addr->sun_path, uri, sizeof(addr->sun_path));
                     37:        addr->sun_path[sizeof(addr->sun_path)-1] = '\0';
                     38: 
                     39:        return offsetof(struct sockaddr_un, sun_path) + strlen(addr->sun_path);
                     40: }
                     41: 
                     42: /**
                     43:  * See header
                     44:  */
                     45: stream_t *stream_create_unix(char *uri)
                     46: {
                     47:        struct sockaddr_un addr;
                     48:        int len, fd;
                     49: 
                     50:        len = stream_parse_uri_unix(uri, &addr);
                     51:        if (len == -1)
                     52:        {
                     53:                DBG1(DBG_NET, "invalid stream URI: '%s'", uri);
                     54:                return NULL;
                     55:        }
                     56:        fd = socket(AF_UNIX, SOCK_STREAM, 0);
                     57:        if (fd < 0)
                     58:        {
                     59:                DBG1(DBG_NET, "opening socket '%s' failed: %s", uri, strerror(errno));
                     60:                return NULL;
                     61:        }
                     62:        if (connect(fd, (struct sockaddr*)&addr, len) < 0)
                     63:        {
                     64:                DBG1(DBG_NET, "connecting to '%s' failed: %s", uri, strerror(errno));
                     65:                close(fd);
                     66:                return NULL;
                     67:        }
                     68:        return stream_create_from_fd(fd);
                     69: }