DeforaOS/utils
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Let the user specify the format string if desired

Browse Source
This commit is contained in:
Pierre Pronchery 2014-05-06 01:42:53 +02:00
parent a725a3cd41
commit ea8d4d36bb
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/date.c
View File

@ -23,14 +23,14 @@
/* date */
/* private */
/* prototypes */
static int _date(void);
static int _date(char const * format);
static int _date_error(char const * message, int ret);
static int _usage(void);
/* functions */
/* date */
static int _date(void)
static int _date(char const * format)
{
time_t t;
struct tm tm;
@ -41,7 +41,7 @@ static int _date(void)
return -_date_error("time", 1);
if(localtime_r(&t, &tm) == NULL)
return -_date_error("localtime_r", 1);
if(strftime(buf, sizeof(buf), "%a %b %e %H:%M:%S %Z %Y", &tm) == 0)
if(strftime(buf, sizeof(buf), format, &tm) == 0)
return -_date_error("strftime", 1);
puts(buf);
return 0;
@ -60,7 +60,7 @@ static int _date_error(char const * message, int ret)
/* usage */
static int _usage(void)
{
fputs("Usage: date\n", stderr);
fputs("Usage: date [+format]\n", stderr);
return 1;
}
@ -69,6 +69,7 @@ static int _usage(void)
int main(int argc, char * argv[])
{
int o;
char const * format = "%a %b %e %H:%M:%S %Z %Y";
while((o = getopt(argc, argv, "")) != -1)
switch(o)
@ -76,7 +77,9 @@ int main(int argc, char * argv[])
default:
return _usage();
}
if(argc - optind != 0)
if(argc - optind == 1 && argv[optind][0] == '+')
format = &argv[optind][1];
else if(optind != argc)
return _usage();
return (_date() == 0) ? 0 : 2;
return (_date(format) == 0) ? 0 : 2;
}