| 11 |
|
|
| 12 |
// interactive mode with prompt |
// interactive mode with prompt |
| 13 |
if (argc == 1) { |
if (argc == 1) { |
| 14 |
fprintf(stderr, "Interactive mode not implemented yet.\n"); |
fprintf(stderr, "Welcome to mini shell. Have fun!\n"); |
| 15 |
//printf("No arguments given."); |
run_commands(stdin, "> "); |
|
exit(EXIT_FAILURE); |
|
| 16 |
} |
} |
| 17 |
|
|
| 18 |
// scripting mode |
// scripting mode |
| 19 |
if (argc == 2) { |
if (argc == 2) { |
| 20 |
FILE * script = fopen(argv[1], "r"); |
FILE * script = fopen(argv[1], "r"); |
| 21 |
run_commands(script); |
run_commands(script, ""); |
| 22 |
fclose(script); |
fclose(script); |
| 23 |
} |
} |
| 24 |
} |
} |
| 25 |
|
|
| 26 |
void run_commands(FILE * fp) { |
void run_commands(FILE * fp, char * prompt) { |
| 27 |
|
|
| 28 |
char command[MAX_COMMAND_LENGTH]; |
char command[MAX_COMMAND_LENGTH]; |
| 29 |
|
|
| 30 |
|
// echo first prompt |
| 31 |
|
fprintf(stdout, "%s", prompt); |
| 32 |
while (fgets(command, MAX_COMMAND_LENGTH, fp)) { |
while (fgets(command, MAX_COMMAND_LENGTH, fp)) { |
| 33 |
int command_length; |
int command_length; |
| 34 |
|
|
| 37 |
|
|
| 38 |
// ... and action |
// ... and action |
| 39 |
dispatch_command(command); |
dispatch_command(command); |
| 40 |
|
|
| 41 |
|
// echo prompt after executing shell command |
| 42 |
|
fprintf(stdout, "%s", prompt); |
| 43 |
} |
} |
| 44 |
|
|
| 45 |
} |
} |