/[cvs]/joko/Uni/BSArch/03/win32/min_shell.c
ViewVC logotype

Diff of /joko/Uni/BSArch/03/win32/min_shell.c

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.15 by joko, Fri Jun 16 19:48:14 2006 UTC revision 1.16 by joko, Fri Jun 16 20:32:37 2006 UTC
# Line 13  int main(int argc, char * argv[]) { Line 13  int main(int argc, char * argv[]) {
13    if (argc == 1) {    if (argc == 1) {
14      fprintf(stderr, "Welcome to mini shell. Have fun!\n");      fprintf(stderr, "Welcome to mini shell. Have fun!\n");
15      run_commands(stdin, "> ");      run_commands(stdin, "> ");
   }  
16        
17    // scripting mode    // scripting mode
18    if (argc == 2) {    } else if (argc == 2) {
19      FILE * script = fopen(argv[1], "r");      FILE * script;
20        script = fopen(argv[1], "r");
21        if (script == NULL) {
22          perror(NULL);
23          exit(EXIT_FAILURE);
24        }
25      run_commands(script, "");      run_commands(script, "");
26      fclose(script);      fclose(script);
27      
28      } else {
29        fprintf(stderr, "Sorry, mini shell just accepts one parameter: a path to a script!\n");
30    }    }
31  }  }
32    
33  void run_commands(FILE * fp, char * prompt) {  void run_commands(FILE * fp, char * prompt) {
34        
35    char command[MAX_COMMAND_LENGTH];    char command[MAX_COMMAND_LENGTH];
36      char *command_ptr;
37        
38    // echo first prompt    // echo first prompt
39    fprintf(stdout, "%s", prompt);    fprintf(stdout, "%s", prompt);
40    while (fgets(command, MAX_COMMAND_LENGTH, fp)) {    while (fgets(command, MAX_COMMAND_LENGTH, fp)) {
41      char *command_ptr = command;      
42        int error_number = ferror(fp);
43        
44        if (error_number) {
45          char * message = strerror(error_number);
46          fprintf(stderr, "Error while reading from input stream: %s", message);
47          clearerr(fp);
48          break;
49        }
50        
51        command_ptr = command;
52            
53      // strip newlines      // strip newlines
54      chomp(command_ptr);      chomp(command_ptr);
Legend:
Removed from v.1.15  
changed lines
  Added in v.1.16
MailToCvsAdmin">MailToCvsAdmin
 ViewVC Help
Powered by ViewVC 1.1.26 RSS 2.0 feed