1 files changed, 26 insertions, 0 deletions
diff --git a/src/cmd/testelf/main.c b/src/cmd/testelf/main.c
new file mode 100644
index 0000000..0cbe56c
--- /dev/null
+++ b/src/cmd/testelf/main.c
@@ -0,0 +1,26 @@
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+const char *str = "Hello!", *str2 = "World.";
+
+int main(int argc, char **argv) {
+	printf("elftest's &main == %p\n", &main);
+	printf("%s %s\n", str, str2);
+	printf("argc == %u\n", argc);
+	for (int i = 0; i < argc; i++)
+		printf("argv[%u] == %p == \"%s\"\n", i, argv[i], argv[i]);
+	if (argv[1] && strcmp(argv[1], "stackexec") == 0) {
+		/* exec something with arguments on the stack */
+		const char s_d[] = "I am a pretty long string on the stack. Oh my. " \
+			"I hope I won't get corrupted.\0";
+		char s[sizeof(s_d)];
+		memcpy(s, s_d, sizeof(s_d));
+		const char *argv2[] = {"/bin/testelf", s, s, "hello", s, s, s, "lol", NULL};
+		printf("argv2 == %p, s == %p\n== exec ==\n", argv2, s);
+		execv((void*)argv2[0], (void*)argv2);
+		err(1, "execv");
+	}
+	return 0;
+}