first commit

dwm/util.c.orig

@@ -0,0 +1,66 @@
+/* See LICENSE file for copyright and license details. */
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "util.h"
+
+void
+die(const char *fmt, ...)
+{
+	va_list ap;
+	int saved_errno;
+
+	saved_errno = errno;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+
+	if (fmt[0] && fmt[strlen(fmt)-1] == ':')
+		fprintf(stderr, " %s", strerror(saved_errno));
+	fputc('\n', stderr);
+
+	exit(1);
+}
+/*
+ * Splits a string into segments according to a separator. A '\0' is written to
+ * the end of every segment. The beginning of every segment is written to
+ * 'pbegin'. Only the first 'maxcount' segments will be written if
+ * maxcount > 0. Inspired by python's split.
+ *
+ * Used exclusively by fakesignal() to split arguments.
+ */
+size_t
+split(char *s, const char* sep, char **pbegin, size_t maxcount) {
+
+	char *p, *q;
+	const size_t seplen = strlen(sep);
+	size_t count = 0;
+
+	maxcount = maxcount == 0 ? (size_t)-1 : maxcount;
+	p = s;
+	while ((q = strstr(p, sep)) != NULL && count < maxcount) {
+		pbegin[count] = p;
+		*q = '\0';
+		p = q + seplen;
+		count++;
+	}
+	if (count < maxcount) {
+		pbegin[count] = p;
+		count++;
+	}
+	return count;
+}
+
+void *
+ecalloc(size_t nmemb, size_t size)
+{
+	void *p;
+
+	if (!(p = calloc(nmemb, size)))
+		die("calloc:");
+	return p;
+}