03/win32/min_shell.c

/* $Id: min_shell.c,v 1.9 2006/06/15 23:16:01 joko Exp $ */

#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>

#include "min_shell.h"


#define MAX_COMMAND_LENGTH 1024

int main(int argc, char * argv[]) {
  
  // interactive mode with prompt
  if (argc == 1) {
    //printf("No arguments given.");
    //exit(EXIT_FAILURE);
    char filename[255] = "abc\0";
    BOOL background = 0;
    os_start_process(filename, background);
  }
  
  // scripting mode
  if (argc == 2) {
    FILE * script = fopen(argv[1], "r");
    run_commands(script);
    fclose(script);
  }
}

void run_commands(FILE * fp) {
  
  char command[MAX_COMMAND_LENGTH];
  
  while (fgets(command, MAX_COMMAND_LENGTH, fp)) {
    int command_length;
    
    // strip newlines
    chomp(command);
    
    // ... and action
    dispatch_command(command);
  }
  
}


void dispatch_command(char * command) {

  BOOL background = FALSE;
  int command_length;
  char first_char;
  char * shell_command;

  // is it a shell command?
  first_char = command[0];
  if (strcmp(&first_char, ":") == 0) {
    
    // "calculate" shell command ...
    shell_command = command + 1;
    printf("shell command: %s\n", shell_command);
    
    // ... and dispatch it
    
    // wait
    if (strcmp(shell_command, "wait") == 0) {
      // TODO
    
    // exit
    } else if (strcmp(shell_command, "exit") == 0) {
      exit(EXIT_SUCCESS);
    
    // unknown command
    } else {
      fprintf(stderr, "ERROR: Unknown shell command '%s'\n", shell_command);
    }
  
  // run program: background or foreground?
  } else {
    printf("running: %s\n", command);
    command_length = strlen(command);
    if (command[command_length-1] == '&') {
      command[command_length-1] = '\0';
      background = TRUE;
    }
    
    os_start_process(command, background);
  }
}

1	/* $Id: min_shell.c,v 1.9 2006/06/15 23:16:01 joko Exp $ */
2
3	#include <stdlib.h>
4	#include <stdio.h>
5	#include <errno.h>
6	#include <string.h>
7
8	#include "min_shell.h"
9
10
11	#define MAX_COMMAND_LENGTH 1024
12
13	int main(int argc, char * argv[]) {
14
15	// interactive mode with prompt
16	if (argc == 1) {
17	//printf("No arguments given.");
18	//exit(EXIT_FAILURE);
19	char filename[255] = "abc\0";
20	BOOL background = 0;
21	os_start_process(filename, background);
22	}
23
24	// scripting mode
25	if (argc == 2) {
26	FILE * script = fopen(argv[1], "r");
27	run_commands(script);
28	fclose(script);
29	}
30	}
31
32	void run_commands(FILE * fp) {
33
34	char command[MAX_COMMAND_LENGTH];
35
36	while (fgets(command, MAX_COMMAND_LENGTH, fp)) {
37	int command_length;
38
39	// strip newlines
40	chomp(command);
41
42	// ... and action
43	dispatch_command(command);
44	}
45
46	}
47
48
49	void dispatch_command(char * command) {
50
51	BOOL background = FALSE;
52	int command_length;
53	char first_char;
54	char * shell_command;
55
56	// is it a shell command?
57	first_char = command[0];
58	if (strcmp(&first_char, ":") == 0) {
59
60	// "calculate" shell command ...
61	shell_command = command + 1;
62	printf("shell command: %s\n", shell_command);
63
64	// ... and dispatch it
65
66	// wait
67	if (strcmp(shell_command, "wait") == 0) {
68	// TODO
69
70	// exit
71	} else if (strcmp(shell_command, "exit") == 0) {
72	exit(EXIT_SUCCESS);
73
74	// unknown command
75	} else {
76	fprintf(stderr, "ERROR: Unknown shell command '%s'\n", shell_command);
77	}
78
79	// run program: background or foreground?
80	} else {
81	printf("running: %s\n", command);
82	command_length = strlen(command);
83	if (command[command_length-1] == '&') {
84	command[command_length-1] = '\0';
85	background = TRUE;
86	}
87
88	os_start_process(command, background);
89	}
90	}
91
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