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db4042d6 H |
1 | /* Copyright (C) 2008 Ricardo Catalinas Jiménez <jimenezrick@gmail.com> |
2 | * | |
3 | * This program is free software: you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation, either version 3 of the License, or | |
6 | * (at your option) any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | ||
17 | #include "fm.h" | |
18 | ||
19 | char *program_name; | |
20 | ||
21 | void clean_up(void) | |
22 | { | |
23 | #ifdef INOTIFY | |
24 | stop_inotify(); | |
25 | #endif | |
26 | g_list_free(lines); | |
27 | destroy_directory_content(tree_root); | |
28 | free_node_data(tree_root, NULL); | |
29 | g_node_destroy(tree_root); | |
30 | } | |
31 | ||
32 | void print_errno_and_exit(int last_errno, char *file, int line) | |
33 | { | |
34 | char *message_format = "%s (%s:%i)"; | |
35 | char *message; | |
36 | ||
37 | endwin(); | |
38 | message = g_strdup_printf(message_format, program_name, file, line); | |
39 | errno = last_errno; | |
40 | perror(message); | |
41 | free(message); | |
42 | exit(EXIT_FAILURE); | |
43 | } | |
44 | ||
45 | void handle_sigsegv(int signal_number) | |
46 | { | |
47 | endwin(); | |
48 | fprintf(stderr, "%s\n", g_strsignal(SIGSEGV)); | |
49 | exit(EXIT_FAILURE); | |
50 | } | |
51 | ||
52 | void handle_sigint(int signal_number) | |
53 | { | |
54 | endwin(); | |
55 | exit(EXIT_SUCCESS); | |
56 | } | |
57 | ||
58 | void set_sighandlers(void) | |
59 | { | |
60 | struct sigaction act; | |
61 | ||
62 | act.sa_handler = handle_sigsegv; | |
63 | sigemptyset(&act.sa_mask); | |
64 | act.sa_flags = 0; | |
65 | sigaction(SIGSEGV, &act, NULL); | |
66 | ||
67 | act.sa_handler = handle_sigint; | |
68 | sigaction(SIGINT, &act, NULL); | |
69 | ||
70 | act.sa_handler = handle_sigwinch; | |
71 | sigaction(SIGWINCH, &act, NULL); | |
72 | } | |
73 | ||
74 | void unset_sighandlers(void) | |
75 | { | |
76 | struct sigaction act; | |
77 | ||
78 | act.sa_handler = SIG_IGN; | |
79 | sigemptyset(&act.sa_mask); | |
80 | act.sa_flags = 0; | |
81 | ||
82 | sigaction(SIGSEGV, &act, NULL); | |
83 | sigaction(SIGINT, &act, NULL); | |
84 | sigaction(SIGWINCH, &act, NULL); | |
85 | } | |
86 | ||
87 | void print_usage(void) | |
88 | { | |
89 | printf("Usage: %s [-h|-d] [<tree_root>]\n", program_name); | |
90 | printf("The root of the displayed tree is `tree_root'.\n"); | |
91 | printf("\t-h: show this help\n\t-d: print on stderr inotify events debug info\n"); | |
92 | } | |
93 | ||
94 | int main(int argc, char *argv[]) | |
95 | { | |
96 | program_name = argv[0]; | |
97 | if (argc > 1 && !strcmp(argv[1], "-h")) { | |
98 | print_usage(); | |
99 | return 0; | |
100 | } else if ((argc == 2 || argc == 3) && !strcmp(argv[1], "-d")) { | |
101 | #ifdef INOTIFY | |
102 | debug_inotify = TRUE; | |
103 | #endif | |
104 | } else if ((argc > 3 && !strcmp(argv[1], "-d")) || argc > 2) { | |
105 | fprintf(stderr, "%s: invalid option\n", program_name); | |
106 | print_usage(); | |
107 | return 1; | |
108 | } | |
109 | if (setlocale(LC_ALL, "") == NULL) | |
110 | fprintf(stderr, "Error: Can't set the specified locale\n"); | |
111 | ||
112 | set_sighandlers(); | |
113 | if (argc == 1) | |
114 | init_ui(NULL); | |
115 | else if (argc == 2 && !strcmp(argv[1], "-d")) | |
116 | init_ui(NULL); | |
117 | else if (argc == 2) | |
118 | init_ui(argv[1]); | |
119 | else | |
120 | init_ui(argv[2]); | |
121 | ||
122 | for (;;) { | |
123 | get_key(); | |
124 | refresh_screen(); | |
125 | } | |
126 | ||
127 | return 0; | |
128 | } |