Wooo! Gists!

BADDOCS.txt

Errors:
-) There is a buffer overflow when passing words of length >= 100.
-) There is a problem for words containing "%s".
-) The file descriptor is never closed.
-) All whitespace is removed.

goodcat.c

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

#define SUCCESS  0
#define E_PARAM  1

int main(int argc, char **argv)
{
    int i;
    FILE *in;
    char c;

    if(argc==0)
    {
        fprintf(stderr, "ERROR: Not enough parameters.\n");
        fprintf(stderr, "Syntax: %s [file1] [file2] ... [fileN]\n", argv[0]);
        exit(E_PARAM);
    }

    for(i=1;i<argc;i++)
    {
        in = fopen(argv[i], "r");
        if(in==NULL)
            fprintf(stderr, "\n%s: %s: No such file or directory\n", argv[0], argv[i]);
        else while ((c = fgetc(in)) != EOF)
        {
            putchar(c);
        }
        fclose(in);
    }
    exit(SUCCESS);
}

Makefile

goodcat: goodcat.o
	cc goodcat.o -o goodcat

clean:
	rm goodcat.o goodcat