int main(int argc, char **argv) {
char commandBuf[BUFSIZE + 1];
struct Process proc;
char path[BUFSIZE + 1] = DEFAULT_PATH;
char *command;
int detached;
/* Set attribute to gray on black. */
Print("\x1B[37m");
while (true) {
/* Print shell prompt (bright cyan on black background) */
Print("\x1B[1;36m$\x1B[37m ");
/* Read a line of input */
Read_Line(commandBuf, sizeof(commandBuf));
command = Strip_Leading_Whitespace(commandBuf);
Trim_Newline(command);
detached = isDetached(command);
/*
* Handle some special commands
*/
if (strcmp(command, "exit") == 0) {
/* Exit the shell */
break;
} else if (strcmp(command, "pid") == 0) {
/* Print the pid of this process */
Print("%d\n", Get_PID());
continue;
} else if (strcmp(command, "exitCodes") == 0) {
/* Print exit codes of spawned processes. */
exitCodes = 1;
continue;
} else if (strncmp(command, "path=", 5) == 0) {
/* Set the executable search path */
strcpy(path, command + 5);
continue;
} else if (strcmp(command, "") == 0) {
/* Blank line. */
continue;
}
proc.command = Strip_Leading_Whitespace(command);
if (!Copy_Token(proc.program, proc.command)) {
Print("Error: invalid command\n");
continue;
}
Spawn_Single_Command(&proc, path, detached);
if (detached && proc.pid > 0)
Print("[%d]\n", proc.pid);
}
Print_String("DONE!\n");
return 0;
}
int main(int argc, char **argv)
{
int nproc;
char commandBuf[BUFSIZE+1];
struct Process procList[MAXPROC];
char path[BUFSIZE+1] = DEFAULT_PATH;
char *command;
/* Set attribute to gray on black. */
Print("\x1B[37m");
while (true) {
/* Print shell prompt (bright cyan on black background) */
Print("\x1B[1;36m$\x1B[37m ");
/* Read a line of input */
Read_Line(commandBuf, sizeof(commandBuf));
command = Strip_Leading_Whitespace(commandBuf);
Trim_Newline(command);
/*
* Handle some special commands
*/
if (strcmp(command, "exit") == 0) {
/* Exit the shell */
break;
} else if (strcmp(command, "pid") == 0) {
/* Print the pid of this process */
Print("%d\n", Get_PID());
continue;
} else if (strcmp(command, "exitCodes") == 0) {
/* Print exit codes of spawned processes. */
exitCodes = 1;
continue;
} else if (strncmp(command, "path=", 5) == 0) {
/* Set the executable search path */
strcpy(path, command + 5);
continue;
} else if (strcmp(command, "") == 0) {
/* Blank line. */
continue;
}
/*
* Parse the command string and build array of
* Process structs representing a pipeline of commands.
*/
nproc = Build_Pipeline(command, procList);
if (nproc <= 0)
continue;
Spawn_Single_Command(procList, nproc, path);
}
Print_String("DONE!\n");
return 0;
}
