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

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: }