Initial commit

4 files changed, 49 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..216b572
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/src/randsleep
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..765a697
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,14 @@
+include config.mk
+
+src/randsleep: src/randsleep.c
+	${CC} ${CFLAGS} ${LDFLAGS} -o $@ $<
+
+install: src/randsleep
+
+uninstall:
+	rm -f src/randsleep
+
+clean:
+	rm -f src/randsleep
+
+.PHONY: all install uninstall clean
diff --git a/config.mk b/config.mk
new file mode 100644
index 0000000..31bec82
--- /dev/null
+++ b/config.mk
@@ -0,0 +1,8 @@
+CFLAGS ?= -Wall -Wextra -pedantic -O2
+LDFLAGS ?= -lrt
+PREFIX ?= /usr/local
+
+main_dir = ${DESTDIR}${PREFIX}
+
+man_dir = ${main_dir}/share/man
+bin_dir = ${main_dir}/bin
diff --git a/src/randsleep.c b/src/randsleep.c
new file mode 100644
index 0000000..d06fb0a
--- /dev/null
+++ b/src/randsleep.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+int main (int argc, char **argv) {
+	long maxsleep;
+	struct timespec ntime;
+
+	if (argc < 2) {
+		fputs("Usage: randsleep <max> <cmd>", stdout);
+		return 1;
+	}
+
+	maxsleep = atol(argv[1]);
+
+	if (clock_gettime(CLOCK_REALTIME, &ntime) == -1)
+		perror("clock_gettime");
+
+	srand(ntime.tv_nsec);
+
+	sleep(rand() % maxsleep);
+
+	execvp(argv[2], argv + 2);
+	perror("execvp");
+}