net.c: fix ifdef UCRED madness
[paraslash.git] / recv_common.c
1 /*
2  * Copyright (C) 2006 Andre Noll <maan@systemlinux.org>
3  *
4  *     This program is free software; you can redistribute it and/or modify
5  *     it under the terms of the GNU General Public License as published by
6  *     the Free Software Foundation; either version 2 of the License, or
7  *     (at your option) any later version.
8  *
9  *     This program is distributed in the hope that it will be useful,
10  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *     GNU General Public License for more details.
13  *
14  *     You should have received a copy of the GNU General Public License
15  *     along with this program; if not, write to the Free Software
16  *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
17  */
18
19 /** \file recv_common.c common functions of para_recv and para_audiod */
20
21 #include "para.h"
22
23 #include "recv.h"
24 #include "string.h"
25
26 void (*crypt_function_recv)(unsigned long len, const unsigned char *indata, unsigned char *outdata) = NULL;
27 void (*crypt_function_send)(unsigned long len, const unsigned char *indata, unsigned char *outdata) = NULL;
28
29 DEFINE_RECEIVER_ARRAY;
30 static void *parse_receiver_args(int receiver_num, char *options)
31 {
32         struct receiver *r = &receivers[receiver_num];
33         char **argv;
34         int argc, i;
35         void *conf;
36
37
38 //      PARA_DEBUG_LOG("%s, options: %s\n", r->name,
39 //              options? options : "(none)");
40         if (options) {
41                 PARA_DEBUG_LOG("options: %s\n", options);
42                 argc = split_args(options, &argv, " \t");
43                 for (i = argc - 1; i >= 0; i--)
44                         argv[i + 1] = argv[i];
45                 argv[0] = para_strdup(r->name);
46                 argc += 1;
47                 PARA_DEBUG_LOG("argc = %d, argv[0]: %s\n", argc, argv[0]);
48         } else {
49                 argc = 1;
50                 argv = para_malloc(2 * sizeof(char*));
51                 argv[0] = NULL;
52                 argv[1] = NULL;
53         }
54         conf = r->parse_config(argc, argv);
55         if (!conf) {
56                 for (i = 0; i < argc; i++)
57                         free(argv[i]);
58                 free(argv);
59                 return NULL;
60         }
61         return conf;
62 }
63
64 void *check_receiver_arg(char *ra, int *receiver_num)
65 {
66         int j;
67
68         PARA_DEBUG_LOG("checking %s\n", ra);
69         for (j = 0; receivers[j].name; j++) {
70                 const char *name = receivers[j].name;
71                 size_t len = strlen(name);
72                 char c;
73                 if (strlen(ra) < len)
74                         continue;
75                 if (strncmp(name, ra, len))
76                         continue;
77                 c = ra[len];
78                 if (c && c != ' ')
79                         continue;
80                 if (c && !receivers[j].parse_config)
81                         return NULL;
82                 *receiver_num = j;
83                 return parse_receiver_args(j, c? ra + len + 1: NULL);
84         }
85         PARA_ERROR_LOG("%s", "receiver not found\n");
86         return NULL;
87 }