1 files changed, 43 insertions, 0 deletions
diff --git a/libc/unistd/execvep.c b/libc/unistd/execvep.c
new file mode 100644
index 000000000..4ac7692e9
--- /dev/null
+++ b/libc/unistd/execvep.c
@@ -0,0 +1,43 @@
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+int execvep(const char *path, char *__const argv[], char *__const envp[])
+{
+	if (!strchr(path, '/')) {
+		char partial[128];
+		char *p = getenv("PATH");
+		char *p2;
+
+		if (!p)
+			p = "/bin:/usr/bin";
+
+		for (; p && *p;) {
+
+			strcpy(partial, p);
+
+			p2 = strchr(partial, ':');
+			if (p2)
+				*p2 = '\0';
+
+			if (strlen(partial))
+				strcat(partial, "/");
+			strcat(partial, path);
+
+			execve(partial, argv, envp);
+
+			if (errno != ENOENT)
+				return -1;
+
+			p2 = strchr(p, ':');
+			if (p2)
+				p = p2 + 1;
+			else
+				p = 0;
+		}
+		return -1;
+	} else
+		return execve(path, argv, envp);
+}