initial commitHEADmaster

1 files changed, 60 insertions, 0 deletions

diff --git a/vtime.c b/vtime.c
new file mode 100644
index 0000000..782f171
--- /dev/null
+++ b/vtime.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <time.h>
+
+#define VTIME_IMPL
+#include "vtime.h"
+
+void
+help()
+{
+	fprintf(stdout, "vtime [FORMAT]\n\
+\t[YYYY/yy].[mm].dd            Sets the date. Can set only the day/month.\n\
+\t                             Instead of dot(.) coult be any non-numeric character.\n\
+\t+/-[k](d/w/m/y)              Add/subtract k units from the date. k is implicitly 1\n\
+\tt[his]/n[ext] Wday\n\
+\tl[ast]/p[rev] Wday           Go to next/previous week day. Wday is the week day prefix.\n\
+\tb[egining]\n\ts[tart]\n\tf[irst]\n\
+\te[nd] w[eek]/m[onth]/y[ear]  Go to first/last day in week/month/year.\n\
+");
+}
+
+int
+main(int argc, char **argv)
+{
+	int i;
+	time_t now = time(NULL);
+	struct tm out = *(localtime(&now));
+	if (argc == 1) {
+		help();
+		return 0;
+	}
+
+	char *fmt, *pnt;
+	size_t len = 0;
+	for (i = 1; i < argc; i++) {
+		len += 1 + strlen(argv[i]);
+	}
+
+	fmt = calloc(len, sizeof(*fmt));
+	if (fmt == NULL) {
+
+		fprintf(stderr, "Failed malloc\n");
+		return 1;
+	}
+
+	for (i = 1, pnt = fmt; i < argc; i++) {
+		pnt = stpcpy(pnt, argv[i]);
+		if (i != argc-1)
+			*(pnt++) = ' ';
+	}
+
+	if (vtime(&out, fmt, 0)) {
+		fprintf(stderr, "Wrong format\n");
+		return 1;
+	}
+	fprintf(stdout, "%s", asctime(&out));
+	return 0;
+}