make sure an input file is specified

master
Jonathan Lamothe 11 years ago
parent ce867fb996
commit 7cbae5d7e6
  1. 4
      undpu.c

@ -9,6 +9,10 @@ int main (int argc, char **argv){
FILE *bob, *joe; FILE *bob, *joe;
int factor, thing, i; int factor, thing, i;
char output[FILENAME_MAX]; char output[FILENAME_MAX];
if(argc < 2){
fputs("I pity the fool who don't have an input file!\n",stderr);
return EXIT_FAILURE;
}
if((bob = fopen(argv[1],"r"))==NULL){ if((bob = fopen(argv[1],"r"))==NULL){
fputs("That's no input file, THAT'S A SPACE STATION!\n",stderr); fputs("That's no input file, THAT'S A SPACE STATION!\n",stderr);
return EXIT_FAILURE; return EXIT_FAILURE;

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