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dollout.c
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dollout.c
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/*
Dollop - https://github.com/RobertoMachorro/dollop
Roberto Machorro. Contact author via GitHub.
Dollop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Dollop is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <time.h>
#include "dollout.h"
void dollout_seed_random()
{
time_t t;
srand((unsigned)time(&t));
}
int dollout_random_outfile(FILE* outfile, long length, int bufsize)
{
long i, j;
long chunks = length / bufsize;
long leftover = length % bufsize;
char *buffer = malloc(bufsize*sizeof(char));
for (i=0; i<chunks; i++) {
for (j=0; j<bufsize; j++) {
buffer[j] = (rand()%94+32);
}
fwrite(buffer, sizeof(char), bufsize, outfile);
}
if (leftover) {
for (j=0; j<leftover; j++) {
buffer[j] = (rand()%94+32);
}
fwrite(buffer, sizeof(char), leftover, outfile);
}
free(buffer);
return 0;
}
int dollout_random_namedfile(const char* filename, long length, int bufsize)
{
FILE* outfile = fopen(filename, "w");
if (outfile == NULL) {
fprintf(stderr, "Unable to create output file named %s.\n\n", filename);
return 1;
}
int result = dollout_random_outfile(outfile, length, bufsize);
fclose(outfile);
return result;
}