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