first try at implementing getdate function

diff --git a/src/time/getdate.c b/src/time/getdate.c
new file mode 100644 (file)
index 0000000..26a4897
--- /dev/null
+++ b/src/time/getdate.c
@@ -0,0 +1,47 @@
+#include <time.h>
+#include <pthread.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int getdate_err;
+
+struct tm *getdate(const char *s)
+{
+       static struct tm tmbuf;
+       struct tm *ret = 0;
+       char *datemsk = getenv("DATEMSK");
+       FILE *f = 0;
+       char fmt[100], *p;
+       int cs;
+
+       pthread_setcancelstate(PTHREAD_CANCEL_DEFERRED, &cs);
+
+       if (!datemsk) {
+               getdate_err = 1;
+               goto out;
+       }
+
+       f = fopen(datemsk, "r");
+       if (!f) {
+               if (errno == ENOMEM) getdate_err = 6;
+               else getdate_err = 2;
+               goto out;
+       }
+
+       while (fgets(fmt, sizeof fmt, f)) {
+               p = strptime(s, fmt, &tmbuf);
+dprintf(2, "%s %s\n", s, fmt);
+dprintf(2, "%p %d\n", p, p?*p:0);
+               if (p && !*p) {
+                       ret = &tmbuf;
+                       goto out;
+               }
+       }
+
+       getdate_err = 7;
+out:
+       if (f) fclose(f);
+       pthread_setcancelstate(cs, 0);
+       return ret;
+}