para_server: Don't link with stat.o.
[paraslash.git] / recv_common.c
1 /*
2 * Copyright (C) 2006-2009 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file recv_common.c common functions of para_recv and para_audiod */
8
9 #include "para.h"
10
11 #include "list.h"
12 #include "sched.h"
13 #include "ggo.h"
14 #include "recv.h"
15 #include "string.h"
16
17 DEFINE_RECEIVER_ARRAY;
18
19 /**
20 * Call the init function of each paraslash receiver.
21 */
22 void recv_init(void)
23 {
24 int i;
25
26 FOR_EACH_RECEIVER(i)
27 receivers[i].init(&receivers[i]);
28 }
29
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 free(argv[0]);
56 free(argv);
57 return conf;
58 }
59
60 /**
61 * check if given string is a valid command line for any receiver
62 *
63 * \param \ra string of the form receiver_name:options
64 * \param receiver_num contains the number of the receiver upon success
65 *
66 * This function checks whether \a ra starts with the name of a supported
67 * paraslash receiver, optinally followed by a colon and any options for that
68 * receiver. If a valid receiver name was found and further are present, the
69 * remaining part of \a ra is passed to that receiver's config parser.
70 *
71 * \return On success, a pointer to the gengetopt args info struct is returned
72 * and \a receiver_num contains the number of the receiver. Otherwise this function
73 * returns \p NULL.
74 */
75 void *check_receiver_arg(char *ra, int *receiver_num)
76 {
77 int j;
78
79 PARA_DEBUG_LOG("checking %s\n", ra);
80 for (j = 0; receivers[j].name; j++) {
81 const char *name = receivers[j].name;
82 size_t len = strlen(name);
83 char c;
84 if (strlen(ra) < len)
85 continue;
86 if (strncmp(name, ra, len))
87 continue;
88 c = ra[len];
89 if (c && c != ' ')
90 continue;
91 if (c && !receivers[j].parse_config)
92 return NULL;
93 *receiver_num = j;
94 return parse_receiver_args(j, c? ra + len + 1: NULL);
95 }
96 PARA_ERROR_LOG("receiver not found\n");
97 return NULL;
98 }
99
100 /**
101 * Print out the help texts to all receivers.
102 *
103 * \param detailed Whether the detailed help should be printed.
104 */
105 void print_receiver_helps(int detailed)
106 {
107 int i;
108
109 printf_or_die("\nAvailable receivers: \n\t");
110 FOR_EACH_RECEIVER(i)
111 printf_or_die("%s%s", i? " " : "", receivers[i].name);
112 printf_or_die("\n\n");
113 FOR_EACH_RECEIVER(i) {
114 struct receiver *r = receivers + i;
115 if (!r->help.short_help)
116 continue;
117 printf_or_die("Options for %s:\n", r->name);
118 ggo_print_help(&r->help, detailed);
119 }
120 }