From bfb3d3b2fbc0d58fb30c3ceef36fa3cd3224f350 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Sun, 1 Sep 2024 16:43:41 +0300
Subject: [PATCH] added musuid

---
 clean.sh             |  2 +-
 configs/config.h     |  4 ++++
 libmu/mode_to_str.c  |  1 -
 scripts/build-box.sh |  1 +
 scripts/musuid.c     | 27 +++++++++++++++++++++++++++
 5 files changed, 33 insertions(+), 2 deletions(-)
 create mode 100644 scripts/musuid.c

diff --git a/clean.sh b/clean.sh
index 7881c8e..fa34938 100755
--- a/clean.sh
+++ b/clean.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-rm -f obj/* bin/* mutils.c mutils
+rm -f obj/* bin/* mutils.c mutils musuid
diff --git a/configs/config.h b/configs/config.h
index 7acf35d..2d501ff 100644
--- a/configs/config.h
+++ b/configs/config.h
@@ -4,6 +4,10 @@
 /* (cat tee wc xargs rev split cp) text buffer */
 #define BUF_SIZE 32000
 
+#ifdef _MUSUID_C
+	#define MUTILS_PATH "/bin/mutils"
+#endif
+
 #ifdef _SHRED_C
 	/* source of random (shred) */
 	#define RAND_SOURCE "/dev/urandom"
diff --git a/libmu/mode_to_str.c b/libmu/mode_to_str.c
index fe04137..aba596f 100644
--- a/libmu/mode_to_str.c
+++ b/libmu/mode_to_str.c
@@ -51,4 +51,3 @@ char *mu_mode_2_str(mode_t file_mode) {
 
 	return mode;
 }
-
diff --git a/scripts/build-box.sh b/scripts/build-box.sh
index 0941afc..d1f0cdf 100755
--- a/scripts/build-box.sh
+++ b/scripts/build-box.sh
@@ -42,3 +42,4 @@ int main(int argc, char **argv) {
 EOF
 
 echo $CFLAGS | xargs $CC -Iconfigs -Ilibmu mutils.c obj/*.o bin/*.c -o mutils
+echo $CFLAGS | xargs $CC -Iconfigs scripts/musuid.c -o musuid
diff --git a/scripts/musuid.c b/scripts/musuid.c
new file mode 100644
index 0000000..fca2b3d
--- /dev/null
+++ b/scripts/musuid.c
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#define _MUSUID_C
+#include "config.h"
+
+const char *progs[] = {"su", "ping"};
+
+int main(int argc, char **argv) {
+	if (argc == 1) {
+		fputs("musuid: missing operand\n", stderr);
+		return 1;
+	}
+
+	argc--;
+	argv++;
+
+	/* RUN */
+	for (size_t i = 0; i < sizeof(progs) / sizeof(char *); i++)
+		if (!strcmp(argv[0], progs[i]))
+			execv(MUTILS_PATH, argv);
+
+	fprintf(stderr, "musuid: unknown command: %s\n", argv[0]);
+	return 1;
+}