49 lines
791 B
C
49 lines
791 B
C
#include <assert.h>
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#include <stdio.h>
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#include <time.h>
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#include <stdlib.h>
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#include <unistd.h>
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char *cmnd;
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static void usage(void) {
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fprintf(stderr, "Usage: %s time_t ...\n", cmnd);
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exit(1);
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}
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int main(int argc, char **argv) {
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int i;
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char *format = "%Y-%m-%d %H:%M:%S %Z";
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int c;
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cmnd = argv[0];
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while ((c = getopt(argc, argv, "f:")) != EOF) {
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switch(c) {
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case 'f':
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format = optarg;
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break;
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case '?':
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usage();
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default:
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assert("this" == "unreachable");
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}
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}
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if (optind >= argc) usage();
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for (i = optind; i < argc; i++) {
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time_t t = strtoul(argv[i], NULL, 0);
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struct tm *tmp;
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char buf[1024];
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tmp = localtime(&t);
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strftime(buf, sizeof(buf), format, tmp);
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printf("%s\n", buf);
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}
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return 0;
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}
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/* vim:sw=4
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*/
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