/* Execute FILE, searching in the `PATH' environment variable if
it contains no slashes, with all arguments after FILE until a
NULL pointer and environment from `environ'. */
int
execlp (const char *file, const char *arg, ...)
{
ptrdiff_t argc;
va_list ap;
va_start (ap, arg);
for (argc = 1; va_arg (ap, const char *); argc++)
{
if (argc == INT_MAX)
{
va_end (ap);
errno = E2BIG;
return -1;
}
}
va_end (ap);
/* Although posix does not state execlp as an async-safe function
it can not use malloc to allocate the arguments since it might
be used in a vfork scenario and it may lead to malloc internal
bad state. */
ptrdiff_t i;
char *argv[argc + 1];
va_start (ap, arg);
argv[0] = (char *) arg;
for (i = 1; i <= argc; i++)
argv[i] = va_arg (ap, char *);
va_end (ap);
return __execvpe (file, argv, __environ);
}
/* Execute FILE, searching in the `PATH' environment variable if it contains
no slashes, with arguments ARGV and environment from `environ'. */
int
execvp (const char *file, char *const argv[])
{
return __execvpe (file, argv, __environ);
}
