From b6125c9eac61eca81eae42fb63a26ce16a8dc8db Mon Sep 17 00:00:00 2001
From: Marius Halden <marius.h@lden.org>
Date: Fri, 19 Aug 2016 16:00:54 +0200
Subject: Initial commit

---
 newbatch.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 newbatch.c

(limited to 'newbatch.c')

diff --git a/newbatch.c b/newbatch.c
new file mode 100644
index 0000000..6b27234
--- /dev/null
+++ b/newbatch.c
@@ -0,0 +1,70 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <errno.h>
+#include <err.h>
+#include <string.h>
+#include <fcntl.h>
+
+#define DEFAULT_QUEUE_DIR "."
+
+int
+main(int argc, char **argv)
+{
+	pid_t mypid;
+	struct timeval tv;
+	int64_t microtime;
+	char *timestr = NULL, *queuedir = NULL, *tmpfile = NULL, *newfile = NULL;
+	char buf[1024], *tmp;
+	int fd, l, m;
+
+	mypid = getpid();
+	gettimeofday(&tv, NULL);
+	microtime = tv.tv_sec * 1000000 + tv.tv_usec;
+	asprintf(&timestr, "%li.%u", microtime, mypid);
+
+	if (argc > 1) {
+		queuedir = strdup(argv[1]);
+	} else {
+		queuedir = strdup(DEFAULT_QUEUE_DIR);
+	}
+
+	asprintf(&tmpfile, "%s/tmp/%s", queuedir, timestr);
+	asprintf(&newfile, "%s/new/%s", queuedir, timestr);
+	free(timestr);
+	free(queuedir);
+
+	fd = open(tmpfile, O_WRONLY | O_CREAT | O_EXCL, 0660);
+	if (fd == -1)
+		err(1, "open()");
+
+	while ((l = read(STDIN_FILENO, buf, sizeof(buf))) != 0) {
+		if (l == -1) {
+			unlink(tmpfile);
+			err(1, NULL);
+		}
+
+		tmp = buf;
+		while (l > 0) {
+			m = write(fd, tmp, l);
+			if (m == -1) {
+				unlink(tmpfile);
+				err(1, NULL);
+			}
+			l -= m;
+			tmp += m;
+		}
+	}
+	close(fd);
+
+	if (rename(tmpfile, newfile) == -1) {
+		unlink(tmpfile);
+		err(1, NULL);
+	}
+
+	free(tmpfile);
+	free(newfile);
+
+	return 0;
+}
-- 
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