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@@ -15,39 +15,45 @@
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*/
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#include <stdio.h>
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#include <time.h>
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+#include <unistd.h>
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#include <sys/time.h>
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-/* XXX Why do we have our own list of weekdays */
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-char * daysofweeks[] = {
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- "Sunday",
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- "Monday",
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- "Tuesday",
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- "Wednesday",
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- "Thursday",
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- "Friday",
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- "Saturday"
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-};
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-
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-void print_time(time_t time) {
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- struct tm * date = localtime(&time);
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- if (!date) {
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- fprintf(stderr, "Failure.\n");
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- } else {
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- printf("%d-%02d-%02d %02d:%02d:%02d (%s, day %d)\n",
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- date->tm_year + 1900,
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- date->tm_mon + 1,
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- date->tm_mday,
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- date->tm_hour,
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- date->tm_min,
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- date->tm_sec,
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- daysofweeks[date->tm_wday],
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- date->tm_yday);
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- }
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+static void show_usage(int argc, char * argv[]) {
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+ printf(
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+ "%s - print the time and day\n"
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+ "\n"
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+ "usage: %s [-?] +FORMAT\n"
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+ "\n"
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+ " Note: This implementation is not currently capable of\n"
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+ " setting the system time.\n"
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+ "\n"
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+ " -? \033[3mshow this help text\033[0m\n"
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+ "\n", argv[0], argv[0]);
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}
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int main(int argc, char * argv[]) {
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- struct timeval tv;
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- gettimeofday(&tv, NULL);
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- print_time(tv.tv_sec);
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- return 0;
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+ char * format = "%a %b %d %T %Y";
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+ struct tm * timeinfo;
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+ struct timeval now;
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+ char buf[BUFSIZ] = {0};
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+ int opt;
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+
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+ while ((opt = getopt(argc,argv,"?")) != -1) {
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+ switch (opt) {
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+ case '?':
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+ show_usage(argc,argv);
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+ return 1;
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+ }
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+ }
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+
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+ if (optind < argc && *argv[optind] == '+') {
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+ format = &argv[optind][1];
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+ }
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+
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+ gettimeofday(&now, NULL); //time(NULL);
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+ timeinfo = localtime((time_t *)&now.tv_sec);
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+
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+ strftime(buf,BUFSIZ,format,timeinfo);
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+ puts(buf);
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+ return 0;
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}
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