char * getKey(void) {
int i = 0;
char * ret = (char *) Malloc(MAX_BUFFER);
if (terminals[getTTY()].insertShellBuffer == 0) {
if (getPID() == terminals[getTTY()].foregroundProcess) {
terminals[getTTY()].blockedPID = getPID();
}
block();
}
for (; i < terminals[tty].insertShellBuffer; i++) {
ret[i] = terminals[tty].shellBuffer[i];
}
ret[i] = '\0';
cleanShellBuffer();
return ret;
}
void clear_screen() {
int procTerm = getTTY();
if (procTerm == tty)
k_clear_screen((unsigned char *) 0xB8000);
else
k_clear_screen((unsigned char *) terminals[procTerm].video);
terminals[procTerm].cursorPos = 0;
}
void main(int argc, char *argv[])
{
int opt, noauth = 0;
char cmdline[1024], *str;
while ((opt = getopt(argc, argv, "f")) != EOF)
switch (opt) {
case 'f':
noauth = 1;
break;
}
dup2(0, 1);
dup2(0, 2);
net = 1;
fgets((char *)&cmdline, 1024, stdin);
if ((str = strtok((char *)&cmdline, " \n\t\v\r")) == NULL)
help();
(void)makeaddr(&from, str);
if ((str = strtok((char *)NULL, " \n\t\v\r")) == NULL)
help();
(void)makeaddr(&to, str);
if ((str = strtok((char *)NULL, " \n\t\v\r")) != NULL)
(void)strncpy((char *)&to.pe_tty, str, UT_LINESIZE);
if (to.pe_host == NULL)
if (getTTY(&to) == -1)
exit(1);
if (strncmp(from.pe_user, "", UT_NAMESIZE) == 0 || from.pe_host ==
NULL || strncmp(from.pe_tty, "", UT_LINESIZE) == 0)
help();
if (ident(0, &auth) == 0)
exit(loop(&from, &to, &auth));
else
if (noauth == 0)
exit(loop(&from, &to, (struct person *)NULL));
else
fprintf(stderr, "write: You cannot be authenticated\n");
exit(1);
}
void terminalPrint(char *data) {
//Returns the terminal in which the actual process is running
int where = getTTY();
int * pos = &(terminals[where].cursorPos);
unsigned char * dirVideo = (unsigned char *) 0xB8000;
if (interrupt) {
dirVideo = (unsigned char *) 0xB8000;
pos = &(terminals[tty].cursorPos);
} else if (where == tty) {
dirVideo = (unsigned char *) 0xB8000;
} else {
dirVideo = terminals[where].video;
}
if ((*data) == 0x08) { // Backspace
char c = ' ';
print(&c, (*pos) - 2, dirVideo);
(*pos) -= 2;
(*pos) = ((*pos) < 0 ? 0 : (*pos));
} else if ((*data) == '\n') { // Enter
char c = ' ';
int scroll;
(*pos) = ((*pos) + (160 - ((*pos) % 160)));
scroll = print(&c, (*pos), dirVideo);
if (scroll) {
(*pos) = 80 * 24 * 2;
}
} else if ((*data) != 0x09) { //Tab
int scroll;
scroll = print(data, (*pos), dirVideo);
(*pos) += 2;
if (scroll) {
(*pos) = 80 * 24 * 2;
}
}
}
void logout() {
terminals[getTTY()].user = NULL;
}
void setUserToTerm(char * userName) {
terminals[getTTY()].user = userName;
}
char * getTTYUser() {
return terminals[getTTY()].user;
}
void setForegroundProcess(int PID) {
terminals[getTTY()].foregroundProcess = PID;
}
