Exec Functions (again) (again)

include/bits/exec.h

@@ -0,0 +1,47 @@
+#ifndef _BITS_EXEC_H
+#define _BITS_EXEC_H
+
+int execl(const char *path, const char* argv0, ...)
+{
+	int argc;
+	va_list ap;
+	va_start(ap, argv0);
+	for (argc = 1; va_arg(ap, const char*); argc++);
+	va_end(ap);
+	{
+		int i;
+		char *argv[argc+1];
+		va_start(ap, argv0);
+		argv[0] = (char *)argv0;
+		for (i = 1; i < argc; i++) {
+			argv[i] = va_arg(ap, char *);
+		}
+		argv[i] = NULL;
+		va_end(ap);
+		return execv(path, argv);
+	}
+}
+
+int execle(const char *path, const char* argv0, ...)
+{
+	int argc;
+	va_list ap;
+	va_start(ap, argv0);
+	for (argc = 1; va_arg(ap, const char *); argc++);
+	va_end(ap);
+	{
+		int i;
+		char *argv[argc+1];
+		char **envp;
+		va_start(ap, argv0);
+		argv[0] = (char *)argv0;
+		for (i = 1; i <= argc; i++) {
+			argv[i] = va_arg(ap, char *);
+		}
+		envp = va_arg(ap, char **);
+		va_end(ap);
+		return execve(path, argv, envp);
+	}
+}
+
+#endif