The World's First File Inflator
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DoublePlusUnzip/dpu.c

70 lines
1.7 KiB

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
int main (int argc, char **argv){
char name[FILENAME_MAX];
FILE *bob,*joe,*moe;
int thing, factor, arg;
int modifier;
factor=0;
while((modifier=getopt(argc,argv,"0123456789"))+1){
switch(modifier){
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
factor=factor*10+modifier-'0';
break;
default:
fputs("You're going to have to be clearer about what you want.\n",stderr);
return EXIT_FAILURE;
}
}
if(factor==0){
factor=9;
}
argc-=optind;
argv+=optind;
arg=0;
if(argc<1){
fputs("I pity the fool who don't have an input file!\n",stderr);
return EXIT_FAILURE;
}
if(argc>1){
fputs("Be patient, one thing at a time!\n",stderr);
}
if(strlen(argv[arg]) >= FILENAME_MAX - 4)
{
fputs("It's a filename, not a novel.\n", stderr);
return EXIT_FAILURE;
}
strlcpy(name,argv[arg],sizeof(name));
strlcat(name,".dpu",sizeof(name));
if((bob = fopen(argv[arg],"r"))==NULL){
fputs("NO YOU FOOL, A REAL ONE!\n",stderr);
return EXIT_FAILURE;
}
if((joe = fopen(name,"w"))==NULL){
fputs("Ummm, you seem to have an unwritable file or directory or something silly called the output file, this is dumb. Please stop.\n",stderr);
return EXIT_FAILURE;
}
if((moe = fopen("/dev/urandom","r"))==NULL){
fputs("So, you aren't random enough. Annoying.\n",stderr);
return EXIT_FAILURE;
}
fprintf(joe,"DOUBLEPLUS UNZIP, FACTOR=%d;",factor);
while((thing=fgetc(bob))!=EOF){
int i;
if((fputc(thing,joe))==EOF){
perror("fputc(thing,joe)");
fputs("problematic\n",stderr);
return EXIT_FAILURE;
}
for(i=0;i<factor;i++){
thing=fgetc(moe);
fputc(thing,joe);
}
}
return 0;
}