1#include <unistd.h>
2#include <stdarg.h>
3
4int execlp(const char *file, const char *argv0, ...)
5{
6	int argc;
7	va_list ap;
8	va_start(ap, argv0);
9	for (argc=1; va_arg(ap, const char *); argc++);
10	va_end(ap);
11	{
12		int i;
13		char *argv[argc+1];
14		va_start(ap, argv0);
15		argv[0] = (char *)argv0;
16		for (i=1; i<argc; i++)
17			argv[i] = va_arg(ap, char *);
18		argv[i] = NULL;
19		va_end(ap);
20		return execvp(file, argv);
21	}
22}
23