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https://github.com/aaru-dps/fstester.git
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Reorganize folder structure to make cmake happy.
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139
setter/src/unix/linux/sparse.c
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139
setter/src/unix/linux/sparse.c
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/****************************************************************************
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Aaru Data Preservation Suite
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-----------------------------------------------------------------------------
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Author(s) : Natalia Portillo
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--[ License ] ---------------------------------------------------------------
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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-----------------------------------------------------------------------------
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Copyright (C) 2011-2021 Natalia Portillo
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*****************************************************************************/
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#include "../../include/consts.h"
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#define _GNU_SOURCE
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "../../log.h"
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#include "linux.h"
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void LinuxSparse(const char* path)
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{
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int ret;
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int rc, wRc, cRc, zRc;
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FILE* h;
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int i;
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int fd;
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ret = chdir(path);
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if(ret)
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{
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log_write("Error %d changing to specified path.\n", errno);
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return;
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}
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ret = mkdir("SPARSE", 0755);
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if(ret)
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{
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log_write("Error %d creating working directory.\n", errno);
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return;
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}
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ret = chdir("SPARSE");
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if(ret)
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{
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log_write("Error %d changing to working directory.\n", errno);
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return;
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}
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log_write("Creating sparse files.\n");
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h = fopen("SMALL", "w+");
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rc = 0;
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wRc = 0;
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cRc = 0;
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zRc = 0;
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if(h == NULL) { rc = errno; }
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else
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{
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for(i = 0; i < 4096 * 3; i += CLAUNIA_SIZE)
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{
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ret = fwrite(clauniaBytes, CLAUNIA_SIZE, 1, h);
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if(ret < 0)
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{
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wRc = errno;
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break;
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}
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}
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fd = fileno(h);
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ret = fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 4096, 8192);
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if(ret) { zRc = errno; }
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ret = fclose(h);
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if(ret) { cRc = errno; }
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}
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log_write("\tFile name = \"%s\", size = %d, rc = %d, wRc = %d, cRc = %d, sRc = %d\n",
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"SMALL",
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4096 * 4,
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rc,
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wRc,
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cRc,
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zRc);
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h = fopen("BIG", "w+");
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rc = 0;
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wRc = 0;
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cRc = 0;
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zRc = 0;
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if(h == NULL) { rc = errno; }
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else
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{
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for(i = 0; i < 4096 * 30; i += CLAUNIA_SIZE)
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{
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ret = fwrite(clauniaBytes, CLAUNIA_SIZE, 1, h);
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if(ret < 0)
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{
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wRc = errno;
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break;
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}
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}
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fd = fileno(h);
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ret = fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 32768, 81920);
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if(ret) { zRc = errno; }
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ret = fclose(h);
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if(ret) { cRc = errno; }
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}
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log_write("\tFile name = \"%s\", size = %d, rc = %d, wRc = %d, cRc = %d, sRc = %d\n",
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"BIG",
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4096 * 30,
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rc,
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wRc,
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cRc,
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zRc);
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}
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