glibc system() implementation

sysdeps\posix\system.c

#define	SHELL_PATH	"/bin/sh"	/* Path of the shell.  */
#define	SHELL_NAME	"sh"		/* Name to give it.  */

static int do_system(const char *line)
{
	if (fork() == 0) {
		const char *new_argv[4];
		new_argv[0] = SHELL_NAME;
		new_argv[1] = "-c";
		new_argv[2] = line;
		new_argv[3] = NULL;

		execve(SELL_PATH, (char *const *) new_argv, __environ);
	} else {
		// wait on child
	}
}