fix some signed warnings in aac and mp3 decoders
[paraslash.git] / recv_common.c
1 /*
2 * Copyright (C) 2006-2007 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 "list.h"
24 #include "sched.h"
25 #include "recv.h"
26 #include "string.h"
27
28 DEFINE_RECEIVER_ARRAY;
29 static void *parse_receiver_args(int receiver_num, char *options)
30 {
31 struct receiver *r = &receivers[receiver_num];
32 char **argv;
33 int argc, i;
34 void *conf;
35
36
37 // PARA_DEBUG_LOG("%s, options: %s\n", r->name,
38 // options? options : "(none)");
39 if (options) {
40 PARA_DEBUG_LOG("options: %s\n", options);
41 argc = split_args(options, &argv, " \t");
42 for (i = argc - 1; i >= 0; i--)
43 argv[i + 1] = argv[i];
44 argv[0] = para_strdup(r->name);
45 argc += 1;
46 PARA_DEBUG_LOG("argc = %d, argv[0]: %s\n", argc, argv[0]);
47 } else {
48 argc = 1;
49 argv = para_malloc(2 * sizeof(char*));
50 argv[0] = NULL;
51 argv[1] = NULL;
52 }
53 conf = r->parse_config(argc, argv);
54 free(argv[0]);
55 free(argv);
56 return conf;
57 }
58
59 /**
60 * check if given string is a valid command line for any receiver
61 *
62 * \param \ra string of the form receiver_name:options
63 * \param receiver_num contains the number of the receiver upon success
64 *
65 * This function checks whether \a ra starts with the name of a supported
66 * paraslash receiver, optinally followed by a colon and any options for that
67 * receiver. If a valid receiver name was found and further are present, the
68 * remaining part of \a ra is passed to that receiver's config parser.
69 *
70 * \return On success, a pointer to the gengetopt args info struct is returned
71 * and \a receiver_num contains the number of the receiver. Otherwise this function
72 * returns \p NULL.
73 */
74 void *check_receiver_arg(char *ra, int *receiver_num)
75 {
76 int j;
77
78 PARA_DEBUG_LOG("checking %s\n", ra);
79 for (j = 0; receivers[j].name; j++) {
80 const char *name = receivers[j].name;
81 size_t len = strlen(name);
82 char c;
83 if (strlen(ra) < len)
84 continue;
85 if (strncmp(name, ra, len))
86 continue;
87 c = ra[len];
88 if (c && c != ' ')
89 continue;
90 if (c && !receivers[j].parse_config)
91 return NULL;
92 *receiver_num = j;
93 return parse_receiver_args(j, c? ra + len + 1: NULL);
94 }
95 PARA_ERROR_LOG("%s", "receiver not found\n");
96 return NULL;
97 }