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Annotation of embedaddon/strongswan/src/libstrongswan/networking/streams/stream_service_systemd.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (C) 2017 aszlig
        !             3:  *
        !             4:  * Permission is hereby granted, free of charge, to any person obtaining a copy
        !             5:  * of this software and associated documentation files (the "Software"), to
        !             6:  * deal in the Software without restriction, including without limitation the
        !             7:  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
        !             8:  * sell copies of the Software, and to permit persons to whom the Software is
        !             9:  * furnished to do so, subject to the following conditions:
        !            10:  *
        !            11:  * The above copyright notice and this permission notice shall be included in
        !            12:  * all copies or substantial portions of the Software.
        !            13:  *
        !            14:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
        !            15:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
        !            17:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        !            18:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
        !            19:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
        !            20:  * IN THE SOFTWARE.
        !            21:  */
        !            22: 
        !            23: #include <systemd/sd-daemon.h>
        !            24: 
        !            25: #include <library.h>
        !            26: 
        !            27: /**
        !            28:  * See header
        !            29:  */
        !            30: stream_service_t *stream_service_create_systemd(char *uri, int backlog)
        !            31: {
        !            32: #ifndef HAVE_SD_LISTEN_FDS_WITH_NAMES
        !            33:        DBG1(DBG_NET, "unable to open stream URI '%s': named systemd sockets not "
        !            34:                 "supported", uri);
        !            35:        return NULL;
        !            36: #else
        !            37:        int i, num_fds, fd;
        !            38:        char **fdmap;
        !            39: 
        !            40:        if (!strpfx(uri, "systemd://"))
        !            41:        {
        !            42:                DBG1(DBG_NET, "invalid stream URI: '%s'", uri);
        !            43:                return NULL;
        !            44:        }
        !            45:        uri += strlen("systemd://");
        !            46: 
        !            47:        num_fds = sd_listen_fds_with_names(0, &fdmap);
        !            48:        if (num_fds <= 0)
        !            49:        {
        !            50:                DBG1(DBG_NET, "no systemd sockets for '%s'", uri);
        !            51:                return NULL;
        !            52:        }
        !            53: 
        !            54:        for (i = 0, fd = -1; i < num_fds; i++)
        !            55:        {
        !            56:                if (fd == -1 && streq(fdmap[i], uri))
        !            57:                {
        !            58:                        fd = SD_LISTEN_FDS_START + i;
        !            59:                }
        !            60:                free(fdmap[i]);
        !            61:        }
        !            62:        free(fdmap);
        !            63: 
        !            64:        if (fd == -1)
        !            65:        {
        !            66:                DBG1(DBG_NET, "unable to find systemd FD for '%s'", uri);
        !            67:                return NULL;
        !            68:        }
        !            69:        return stream_service_create_from_fd(fd);
        !            70: #endif
        !            71: }