int main() {
// The maximum size of command that a user can enter
const int INPUT_SIZE = 256;
char input[INPUT_SIZE];
// Get user input
printf("Please enter a command (limit to 256 characters)\n");
fgets(input, INPUT_SIZE, stdin);
// Initialize array stuff
char** argv;
int argc;
argc = makearg(input, &argv);
// Print arguments of array
for (int i=0; i<argc; i++) {
printf("Argument %i: %s\n", i+1, argv[i]);
}
}
/*
* === FUNCTION ======================================================================
* Name: cmdloop
* Description: 循环执行命令
* =====================================================================================
*/
static void
cmdloop (void)
{
struct cmd *c;
int l;
char line[MAXLINE] = "";
for (;;) {
if (!getinput(line, sizeof(line))) {
QUIT();
}
l = strlen(line);
if (l == 0)
break;
if (line[--l] == '\n') {
if (l == 0)
break;
line[l] = '\0';
}
else if (l == sizeof(line) - 2) {
/* it was a line without a newline */
printf("Sorry, input line too long\n");
while ((l = getchar()) != '\n' && l != EOF)
;
break;
}
/* 如果是大写命令，直接发送到服务器处理，只适合部分控制命令，慎用 */
if (isupper(line[0])){
command(line);
continue;
}
makearg(line);
c = getcmd(margv[0]);
if (c == (struct cmd *)-1) {
printf("?Ambiguous command\n");
continue;
}
if (c == NULL) {
printf("?Invalid command\n");
continue;
}
if (c->c_conn && !connected) {
/* 试图自动建立连接 */
if (automatic && strcmp(hostnm, "")){
setpeer(hostnm);
}
else{
printf("Not connected.\n");
continue;
}
}
if (c->c_handler_1)
c->c_handler_1(margc, margv);
else
c->c_handler_0();
}
signal(SIGINT, SIG_IGN);
signal(SIGPIPE, lostpeer);
} /* ----- end of function cmdloop ----- */
static void
addg(unsigned char *as1, unsigned char *as2,
unsigned char *as3, unsigned char *as4)
{
register unsigned char *s1, *s2;
register int c;
int len;
wchar_t wc;
s2 = locstak() + BYTESPERWORD;
s1 = as1;
if (as4) {
while (c = *s1++)
{
if (s2 >= brkend)
growstak(s2);
*s2++ = c;
}
/*
* Restore first slash before the first metacharacter
* if as1 is not "/"
*/
if (as4 + 1 == s1) {
if (s2 >= brkend)
growstak(s2);
*s2++ = '/';
}
}
/* add matched entries, plus extra \\ to escape \\'s */
s1 = as2;
for (;;)
{
if ((len = nextc(&wc, (char *)s1)) <= 0) {
len = 1;
wc = (unsigned char)*s1;
}
if (s2 >= brkend)
growstak(s2);
if (wc == 0) {
*s2 = *s1++;
break;
}
if (wc == '\\') {
*s2++ = '\\';
if (s2 >= brkend)
growstak(s2);
*s2++ = '\\';
s1++;
continue;
}
if ((s2 + len) >= brkend)
growstak(s2 + len);
memcpy(s2, s1, len);
s2 += len;
s1 += len;
}
if (s1 = as3)
{
if (s2 >= brkend)
growstak(s2);
*s2++ = '/';
do
{
if (s2 >= brkend)
growstak(s2);
}
while (*s2++ = *++s1);
}
makearg((struct argnod *)endstak(s2));
}
