random_generator.c

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

void main () {
	char[] queue_dir = "/home/damian/test/%s";
	char *file_name = get_filename();

	char file_path[strlen(queue_dir) + strlen(file_name)];
	sprintf(file_path, queue_dir, file_name);

	FILE *fh;
	fh = fopen(file_path, "w");
	fprintf(fh, "%s", "Oh hai");
	fclose(fh);
}

char get_filename() {
	srand(time(0));

	static const char text[] = "abcdefghijklmnopqrstuvwxyz"
								"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
								"0123456789";

	char file_name[54];
	int i, len = rand() % (49);
	for ( i = 0; i < 50; ++i ) {
		file_name[i] = text[rand() % (sizeof text - 1)];
	}
	file_name[51] = '.';
	file_name[52] = 'd';
	file_name[53] = 'a';
	file_name[54] = 't';
	file_name[50] = '\0';

	return file_name;
}