rosapps/applications/sysutils/tcat/cat.c

   1 /*
   2  * FILE       : cat.c
   3  * NATIVE NAME: tcat "tappak's cat" :)
   4  * AUTHOR     : Semyon Novikov (tappak)
   5  * PROJECT    : ReactOS Operating System
   6  * DESCRIPTION: file concatenation tool
   7  * DATE       : 2004-01-21
   8  * LICENSE    : GPL
   9  */
  10
  11 #include <stdio.h>
  12 #include <string.h>
  13 #define F_O_ERR "can not open file"
  14
  15 void help(void)
  16 {
  17  puts("File concatenation tool");
  18  puts("Usage: cat [file]");
  19 }
  20
  21 int main(int argc, char *argv[])
  22 {
  23  FILE *srcf;
  24  char *keys[]={"--help","/help"};
  25  int i=0,ret=0;
  26  switch(argc)
  27   {
  28     case 1:puts("Usage: cat [file]");break;
  29     case 2:
  30      if ((!strcmp(argv[1],keys[0]))||(!strcmp(argv[1],keys[1])))
  31       help();
  32      else
  33       {
  34       if((srcf=fopen(argv[1],"r"))!=NULL)
  35       {
  36        while(i!=EOF)
  37         { i=fgetc(srcf);
  38           putchar(i);
  39         }
  40        fclose(srcf);
  41       }
  42       else
  43       {
  44        printf("%s %s %s\n",argv[0],F_O_ERR,argv[1]);
  45        ret=-1;
  46       }
  47      }
  48     break;
  49    }
  50  return ret;
  51 }
  52