initial commit
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commit
100fe28214
14
Makefile
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14
Makefile
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@ -0,0 +1,14 @@
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SHELL = /bin/sh
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.SUFFIXES = .c
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CFLAGS = -Wall -Wextra --std=c99 -Ofast -flto -fPIC -march=native
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CC=gcc
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STRIP=strip
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default:
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$(CC) $(CFLAGS) filefiller.c -o filefiller
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$(STRIP) ./filefiller
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install:
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cp filefiller /usr/bin/filefiller
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119
filefiller.c
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119
filefiller.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include <string.h>
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#include <errno.h>
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/* explicitly compile with -D_OFFSET_FILE_BITS=64 if it fails at 2G */
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#define _FILE_OFFSET_BITS 64
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#define TUI
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#define BARLEN 200
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#define NAME "filefiller"
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#define VERSION "0.1"
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#define ME "cancer"
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/* #define DEBUG */
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#define BLOCKSIZE (unsigned long long)4096
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#define REFRESHINTERVAL 1024
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#define FILLCHAR 0x00
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void usage(char *binname) {
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printf("%s v%s\n\n Usage:\n %s filename blocks\n\n This executable uses:\n BLOCKSIZE = %llu\n REFRESHINTERVAL = %d\n FILLCHAR = 0x%X\n\n~%s\n", NAME, VERSION, binname, BLOCKSIZE, REFRESHINTERVAL, FILLCHAR, ME);
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exit(0);
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}
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int main(int argc, char **argv) {
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if(argc < 3) usage(argv[0]);
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FILE *fd;
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fd = fopen(argv[1], "r");
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if(fd != NULL) {
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#ifdef DEBUG
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printf("File exists, removing.");
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#endif
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fclose(fd);
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remove(argv[1]);
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}
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fd = fopen(argv[1], "wb");
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size_t x = 0;
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char *b = malloc(sizeof(char)*BLOCKSIZE);
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#ifdef DEBUG
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printf("Allocated %llu bytes.\n", BLOCKSIZE);
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#endif
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unsigned long long c = atoll(argv[2]);
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memset(b, FILLCHAR, BLOCKSIZE);
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#ifdef DEBUG
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printf("Zeroed %llu bytes.\n", BLOCKSIZE);
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#endif
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#ifdef TUI
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puts("FILENAME PERCENT BLOCKS_DONE BLOCKS_LEFT BLOCKS_TOT FILESIZE");
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#endif
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for(unsigned long long i = 1; i <= c; i++) {
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if((x = fwrite(b, sizeof(char), BLOCKSIZE, fd)) < BLOCKSIZE) {
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#ifdef DEBUG
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if(ferror(fd)) {
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printf("ferror\n");
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printf("%d %s \n", errno, strerror(errno));
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}
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else if(feof(fd)) {
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printf("\reof\n");
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}
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else {
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printf("\r%d %s \n", errno, strerror(errno));
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}
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printf("Wrote %llu bytes instead of %llu.\n", (unsigned long long)x, BLOCKSIZE);
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#endif
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puts("\n");
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fclose(fd);
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remove(argv[1]);
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return EXIT_FAILURE;
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}
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if(i % REFRESHINTERVAL == 0 || i == c) {
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#ifdef TUI
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printf("\r%-8s %-7.2lf %-11llu %-11llu %-11llu", argv[1], ((double)i/(double)c*100), i, c-i, c);
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unsigned long long x = i*BLOCKSIZE;
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char *sizes = " KMGPE";
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while(x >= 1024) {
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x = x >> 10;
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sizes++;
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}
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printf("%llu%c\033[K\n[\033[7m\033[2G", x, *sizes);
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for(unsigned int j = 2; j < (unsigned int)((double)i/(double)c*BARLEN); j++) {
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printf(" ");
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}
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printf("\033[0m\033[200G]\033[1A\r");
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#endif
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}
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}
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puts("\n");
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#if defined(DEBUG) || !defined(TUI)
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printf("Wrote %llu blocks of %llu (=%llu bytes) to file %s.\n", c, BLOCKSIZE, c*BLOCKSIZE, argv[1]);
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#endif
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free(b);
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fclose(fd);
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}
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