diff options
Diffstat (limited to 'src/alarm.c')
-rw-r--r-- | src/alarm.c | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/src/alarm.c b/src/alarm.c deleted file mode 100644 index 3c989a4..0000000 --- a/src/alarm.c +++ /dev/null @@ -1,95 +0,0 @@ -/** - * alarm — Schedule an alarm for a program when starting it - * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <stdlib.h> -#include <stddef.h> - - -int main(int argc, char** argv) -{ - char** cmdline = NULL; - long hours = 0; - long minutes = 0; - long seconds = 0; - long buf = 0; - int hms = 0; - char* time; - - if (argc < 3) - goto usage; - - time = argv[1]; - while (*time) - { - char c = *time++; - if (('0' <= c) && (c <= '9')) - buf = buf * 10 - (c & 15); - else if (strchr("hms", c)) - { - if (c == 'h') hours = -buf; - else if (c == 'm') minutes = -buf; - else if (c == 's') seconds = -buf; - buf = 0, hms = 1; - } - else - goto usage; - } - if (!hms) - { - if (strlen(argv[1]) < 1) - return 0; - seconds = -buf; - } - - seconds += minutes * 60; - seconds += hours * 60 * 60; - if ((seconds < 1) || (65535 < seconds)) - goto usage; - - cmdline = malloc((size_t)(argc - 1) * sizeof(char*)); - if (cmdline == NULL) - goto fail; - memcpy(cmdline, argv + 2, (size_t)(argc - 2) * sizeof(char*)); - cmdline[argc - 2] = NULL; - - alarm((unsigned)seconds); - execvp(argv[2], cmdline); - - fail: - perror(*argv); - free(cmdline); - return 1; - - usage: - printf("USAGE: %s <TIME> <COMMAND> <ARGS...>\n", *argv); - printf("\n"); - printf("Recognised patterns for <TIME>:\n"); - printf("\n"); - printf(" <SECONDS>[s]\n"); - printf(" <MINUTES>m[<SECONDS>s]\n"); - printf(" <HOURS>h[<MINUTES>m][<SECONDS>s]\n"); - printf("\n"); - printf(" All values are non-negative integers, and\n"); - printf(" the interal must be greater than zero and\n"); - printf(" at most 18h12m15s.\n"); - printf("\n"); - return 1; -} - |