/[cvs]/joko/Uni/BSArch/03/win32/min_shell.c
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Diff of /joko/Uni/BSArch/03/win32/min_shell.c

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revision 1.10 by joko, Fri Jun 16 00:06:11 2006 UTC revision 1.12 by joko, Fri Jun 16 00:37:22 2006 UTC
# Line 7  Line 7 
7    
8  #include "min_shell.h"  #include "min_shell.h"
9    
   
 #define MAX_COMMAND_LENGTH 1024  
   
10  int main(int argc, char * argv[]) {  int main(int argc, char * argv[]) {
11        
12    // interactive mode with prompt    // interactive mode with prompt
13    if (argc == 1) {    if (argc == 1) {
14      //printf("No arguments given.");      //fprintf(stderr, "Interactive mode not implemented yet.\n");
15      //exit(EXIT_FAILURE);      //exit(EXIT_FAILURE);
16      char filename[255] = "abc\0";      run_commands(stdin, "> ");
     BOOL background = 0;  
     os_start_process(filename, background);  
17    }    }
18        
19    // scripting mode    // scripting mode
20    if (argc == 2) {    if (argc == 2) {
21      FILE * script = fopen(argv[1], "r");      FILE * script = fopen(argv[1], "r");
22      run_commands(script);      run_commands(script, "");
23      fclose(script);      fclose(script);
24    }    }
25  }  }
26    
27  void run_commands(FILE * fp) {  void run_commands(FILE * fp, char * prompt) {
28        
29    char command[MAX_COMMAND_LENGTH];    char command[MAX_COMMAND_LENGTH];
30        
31      // echo first prompt
32      fprintf(stdout, "%s", prompt);
33    while (fgets(command, MAX_COMMAND_LENGTH, fp)) {    while (fgets(command, MAX_COMMAND_LENGTH, fp)) {
34      int command_length;      int command_length;
35            
# Line 41  void run_commands(FILE * fp) { Line 38  void run_commands(FILE * fp) {
38            
39      // ... and action      // ... and action
40      dispatch_command(command);      dispatch_command(command);
41        
42        // echo prompt after executing shell command
43        fprintf(stdout, "%s", prompt);
44    }    }
45        
46  }  }
# Line 59  void dispatch_command(char * command) { Line 59  void dispatch_command(char * command) {
59            
60      // "calculate" shell command ...      // "calculate" shell command ...
61      shell_command = command + 1;      shell_command = command + 1;
62      printf("shell command: %s\n", shell_command);      //printf("shell command: %s\n", shell_command);
63            
64      // ... and dispatch it      // ... and dispatch it
65            
66      // wait      // wait
67      if (strcmp(shell_command, "wait") == 0) {      if (strcmp(shell_command, "wait") == 0) {
68        // TODO        // TODO
69          os_wait_for_processes();
70            
71      // exit      // exit
72      } else if (strcmp(shell_command, "exit") == 0) {      } else if (strcmp(shell_command, "exit") == 0) {
# Line 78  void dispatch_command(char * command) { Line 79  void dispatch_command(char * command) {
79        
80    // run program: background or foreground?    // run program: background or foreground?
81    } else {    } else {
82      printf("running: %s\n", command);      //printf("running: %s\n", command);
83      command_length = strlen(command);      command_length = strlen(command);
84      if (command[command_length-1] == '&') {      if (command[command_length-1] == '&') {
85        command[command_length-1] = '\0';        command[command_length-1] = '\0';
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