add ln, util.a

util/enmasse.c

@@ -0,0 +1,38 @@
+/* See LICENSE file for copyright and license details. */
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include "../util.h"
+
+void
+enmasse(int argc, char **argv, int (*fn)(const char *, const char *))
+{
+	char *buf, *dir;
+	int i;
+	long size;
+	struct stat st;
+
+	if(argc == 2 && !(stat(argv[1], &st) == 0 && S_ISDIR(st.st_mode))) {
+		if(fn(argv[0], argv[1]) != 0)
+			eprintf("%s:", argv[1]);
+		return;
+	}
+	else if(argc == 1)
+		dir = ".";
+	else
+		dir = argv[--argc];
+
+	if((size = pathconf(dir, _PC_PATH_MAX)) < 0)
+		size = BUFSIZ;
+	if(!(buf = malloc(size)))
+		eprintf("malloc:");
+	for(i = 0; i < argc; i++) {
+		snprintf(buf, size, "%s/%s", dir, basename(argv[i]));
+		if(fn(argv[i], buf) != 0)
+			eprintf("%s:", buf);
+	}
+	free(buf);
+}

util/eprintf.c

@@ -0,0 +1,22 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "../util.h"
+
+void
+eprintf(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+
+	if(fmt[0] && fmt[strlen(fmt)-1] == ':') {
+		fputc(' ', stderr);
+		perror(NULL);
+	}
+	exit(EXIT_FAILURE);
+}