/src/jpegoptim/jpegoptim.c

Source
/*******************************************************************
 * JPEGoptim
 * Copyright (c) Timo Kokkonen, 1996-2025.
 * All Rights Reserved.
 *
 * requires libjpeg (Independent JPEG Group's JPEG software
 *                     release 6a or later...)
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * This file is part of JPEGoptim.
 *
 * JPEGoptim 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.
 *
 * JPEGoptim 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 JPEGoptim. If not, see <https://www.gnu.org/licenses/>.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_DIRENT_H
#include <dirent.h>
#endif
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#if HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#if HAVE_GETOPT_H && HAVE_GETOPT_LONG
#include <getopt.h>
#else
#include "getopt.h"
#endif
#include <signal.h>
#include <string.h>
#include <jpeglib.h>
#include <jerror.h>
#include <setjmp.h>
#include <time.h>
#include <math.h>

#include "jpegmarker.h"
#include "jpegoptim.h"


#define VERSION "1.5.7beta"
#define COPYRIGHT  "Copyright (C) 1996-2025, Timo Kokkonen"

#if HAVE_WAIT && HAVE_FORK
#define PARALLEL_PROCESSING 1
#define MAX_WORKERS 256
#endif

#define IN_BUF_SIZE (256 * 1024)


struct my_error_mgr {
  struct jpeg_error_mgr pub;
  jmp_buf setjmp_buffer;
  int     jump_set;
};
typedef struct my_error_mgr * my_error_ptr;


#ifdef PARALLEL_PROCESSING
struct worker {
  pid_t pid;
  int   read_pipe;
};
struct worker *workers;
int worker_count = 0;
#endif


int verbose_mode = 0;
int quiet_mode = 0;
int preserve_mode = 0;
int preserve_perms = 0;
int overwrite_mode = 0;
int retry_mode = 0;
int totals_mode = 0;
int stdin_mode = 0;
int stdout_mode = 0;
int noaction = 0;
int quality = -1;
int dest = 0;
int force = 0;
int save_extra = 0;
int save_exif = 1;
int save_iptc = 1;
int save_com = 1;
int save_icc = 1;
int save_xmp = 1;
int save_adobe = 0;
int save_jfxx = 0;
int save_jfif = 1;
int strip_none = 0;
double threshold = -1.0;
int csv = 0;
int auto_mode = 0;
int all_normal = 0;
int all_progressive = 0;
int target_size = 0;
#ifdef HAVE_ARITH_CODE
int arith_mode = -1;
#endif
int max_workers = 1;
int nofix_mode = 0;
int files_stdin = 0;
FILE *files_from = NULL;

int compress_err_count = 0;
int decompress_err_count = 0;
int global_error_counter = 0;
char last_error[JMSG_LENGTH_MAX+1];
FILE *jpeg_log_fh;
long average_count = 0;
double average_rate = 0.0;
double total_save = 0.0;

const struct option long_options[] = {
#ifdef HAVE_ARITH_CODE
  { "all-arith",          0, &arith_mode,          1 },
  { "all-huffman",        0, &arith_mode,          0 },
#endif
  { "auto-mode",          0, &auto_mode,          1 },
  { "all-normal",         0, &all_normal,          1 },
  { "all-progressive",    0, &all_progressive,     1 },
  { "csv",                0, 0,                    'b' },
  { "dest",               1, 0,                    'd' },
  { "files-stdin",        0, &files_stdin,         1 },
  { "files-from",         1, 0,                    'F' },
  { "force",              0, 0,                    'f' },
  { "help",               0, 0,                    'h' },
  { "keep-adobe",         0, &save_adobe,          1 },
  { "keep-all",           0, &strip_none,          1 },
  { "keep-com",           0, &save_com,            1 },
  { "keep-exif",          0, &save_exif,           1 },
  { "keep-iptc",          0, &save_iptc,           1 },
  { "keep-icc",           0, &save_icc,            1 },
  { "keep-jfif",          0, &save_jfif,           1 },
  { "keep-jfxx",          0, &save_jfxx,           1 },
  { "keep-xmp",           0, &save_xmp,            1 },
  { "max",                1, 0,                    'm' },
  { "noaction",           0, 0,                    'n' },
  { "nofix",              0, &nofix_mode,          1 },
  { "overwrite",          0, 0,                    'o' },
  { "preserve",           0, 0,                    'p' },
  { "preserve-perms",     0, 0,                    'P' },
  { "quiet",              0, 0,                    'q' },
  { "retry",              0, &retry_mode,          'r' },
  { "save-extra",         0, &save_extra,          1 },
  { "size",               1, 0,                    'S' },
  { "stdin",              0, &stdin_mode,          1 },
  { "stdout",             0, &stdout_mode,         1 },
  { "strip-all",          0, 0,                    's' },
  { "strip-none",         0, &strip_none,          1 },
  { "strip-com",          0, &save_com,            0 },
  { "strip-exif",         0, &save_exif,           0 },
  { "strip-iptc",         0, &save_iptc,           0 },
  { "strip-icc",          0, &save_icc,            0 },
  { "strip-xmp",          0, &save_xmp,            0 },
  { "strip-jfif",         0, &save_jfif,           0 },
  { "strip-jfxx",         0, &save_jfxx,           0 },
  { "strip-adobe",        0, &save_adobe,          0 },
  { "threshold",          1, 0,                    'T' },
  { "totals",             0, 0,                    't' },
  { "verbose",            0, 0,                    'v' },
  { "version",            0, 0,                    'V' },
#ifdef PARALLEL_PROCESSING
  { "workers",            1, &max_workers,         'w' },
#endif
  { 0, 0, 0, 0 }
};


/*****************************************************************/


void free_line_buf(JSAMPARRAY *buf, unsigned int lines)
{
  if (*buf == NULL)
    return;

  for (unsigned int i = 0; i < lines; i++) {
    if ((*buf)[i])
      free((*buf)[i]);
  }
  free(*buf);
  *buf = NULL;
}


METHODDEF(void) my_error_exit (j_common_ptr cinfo)
{
  my_error_ptr myerr = (my_error_ptr)cinfo->err;

  (*cinfo->err->output_message)(cinfo);
  if (myerr->jump_set)
    longjmp(myerr->setjmp_buffer, 1);
  else
    fatal("fatal error");
}


METHODDEF(void) my_output_message (j_common_ptr cinfo)
{
  char buffer[JMSG_LENGTH_MAX+1];

  (*cinfo->err->format_message)((j_common_ptr)cinfo, buffer);
  buffer[sizeof(buffer) - 1] = 0;

  if (verbose_mode)
    fprintf(jpeg_log_fh, " (%s) ", buffer);

  global_error_counter++;
  strncopy(last_error, buffer, sizeof(last_error));
}


void print_usage(void)
{
  fprintf(stdout,PROGRAMNAME " v" VERSION "  " COPYRIGHT "\n");

  fprintf(stdout,
    "Usage: " PROGRAMNAME " [options] <filenames> \n\n"
    "  -d<path>, --dest=<path>\n"
    "                    specify alternative destination directory for \n"
    "                    optimized files (default is to overwrite originals)\n"
    "  -f, --force       force optimization\n"
    "  -h, --help        display this help and exit\n"
    "  -m<quality>, --max=<quality>\n"
    "                    set maximum image quality factor (disables lossless\n"
    "                    optimization mode, which is by default on)\n"
    "                    Valid quality values: 0 - 100\n"
    "  -n, --noaction    don't really optimize files, just print results\n"
    "  -S<size>, --size=<size>\n"
    "                    Try to optimize file to given size (disables lossless\n"
    "                    optimization mode). Target size is specified either in\n"
    "                    kilo bytes (1 - n) or as percentage (1%% - 99%%)\n"
    "  -T<threshold>, --threshold=<threshold>\n"
    "                    keep old file if the gain is below a threshold (%%)\n"
#ifdef PARALLEL_PROCESSING
    "  -w<max>, --workers=<max>\n"
    "                    set maximum number of parallel threads (default is 1)\n"
#endif
    "  -b, --csv         print progress info in CSV format\n"
    "  -o, --overwrite   overwrite target file even if it exists (meaningful\n"
    "                    only when used with -d, --dest option)\n"
    "  -p, --preserve    preserve file timestamps\n"
    "  -P, --preserve-perms\n"
    "                    preserve original file permissions by overwriting it\n"
    "  -q, --quiet       quiet mode\n"
    "  -r, --retry       try (recursively) optimize until file size does not change anymore\n"
    "  -t, --totals      print totals after processing all files\n"
    "  -v, --verbose     enable verbose mode (positively chatty)\n"
    "  -V, --version     print program version\n\n"
    "  -s, --strip-all   strip all markers from output file\n"
    "  --strip-none      do not strip any markers\n"
    "  --strip-adobe     strip Adobe (APP14) markers from output file\n"
    "  --strip-com       strip Comment markers from output file\n"
    "  --strip-exif      strip Exif markers from output file\n"
    "  --strip-iptc      strip IPTC/Photoshop (APP13) markers from output file\n"
    "  --strip-icc       strip ICC profile markers from output file\n"
    "  --strip-jfif      strip JFIF markers from output file\n"
    "  --strip-jfxx      strip JFXX (JFIF Extension) markers from output file\n"
    "  --strip-xmp       strip XMP markers markers from output file\n"
    "\n"
    "  --keep-all        do not strip any markers (same as --strip-none)\n"
    "  --keep-adobe      preserve any Adobe (APP14) markers\n"
    "  --keep-com        preserve any Comment markers\n"
    "  --keep-exif       preserve any Exif markers\n"
    "  --keep-iptc       preserve any IPTC/Photoshop (APP13) markers\n"
    "  --keep-icc        preserve any ICC profile markers\n"
    "  --keep-jfif       preserve any JFIF markers\n"
    "  --keep-jfxx       preserve any JFXX (JFIF Extension) markers\n"
    "  --keep-xmp        preserve any XMP markers markers\n"
    "\n"
    "  --all-normal      force all output files to be non-progressive\n"
    "  --all-progressive force all output files to be progressive\n"
    "  --auto-mode       select normal or progressive based on which produces\n"
    "                    smaller output file\n"
#ifdef HAVE_ARITH_CODE
    "  --all-arith       force all output files to use arithmetic coding\n"
    "  --all-huffman     force all output files to use Huffman coding\n"
#endif
    "  --stdout          send output to standard output (instead of a file)\n"
    "  --stdin           read input from standard input (instead of a file)\n"
    "  --files-stdin     Read names of files to process from stdin\n"
    "  --files-from=FILE Read names of files to process from a file\n"
    "  --nofix           skip processing of input files if they contain any errors\n"
    "  --save-extra      preserve extraneous data after the end of image\n"
    "\n\n");
}


void print_version()
{
  struct jpeg_error_mgr jerr;

#ifdef  __DATE__
  printf(PROGRAMNAME " v%s  %s (%s)\n",VERSION, HOST_TYPE, __DATE__);
#else
  printf(PROGRAMNAME " v%s  %s\n", VERSION, HOST_TYPE);
#endif
  printf(COPYRIGHT "\n\n");
  printf("This program comes with ABSOLUTELY NO WARRANTY. This is free software,\n"
    "and you are welcome to redistribute it under certain conditions.\n"
    "See the GNU General Public License for more details.\n\n");

  if (!jpeg_std_error(&jerr))
    fatal("jpeg_std_error() failed");

  printf("\nlibjpeg version: %s\n%s\n",
    jerr.jpeg_message_table[JMSG_VERSION],
    jerr.jpeg_message_table[JMSG_COPYRIGHT]);
}


void parse_arguments(int argc, char **argv, char *dest_path, size_t dest_path_len)
{
  int opt_index;
  int i, c;

  while(1) {
    opt_index=0;
    if ((c = getopt_long(argc,argv,"d:hm:nstqvfVpProT:S:bw:",
            long_options, &opt_index)) == -1)
      break;

    switch (c) {

    case 'm':
            {
        int tmpvar;

        if (sscanf(optarg,"%d",&tmpvar) == 1) {
          quality=tmpvar;
          if (quality < 0) quality=0;
          if (quality > 100) quality=100;
        }
        else
          fatal("invalid argument for -m, --max");
      }
      break;

    case 'd':
      if (realpath(optarg,dest_path)==NULL)
        fatal("invalid destination directory: %s", optarg);
      if (!is_directory(dest_path))
        fatal("destination not a directory: %s", dest_path);
      strncatenate(dest_path, DIR_SEPARATOR_S, dest_path_len);
      if (verbose_mode)
        fprintf(stderr,"Destination directory: %s\n",dest_path);
      dest=1;
      break;

    case 'v':
      verbose_mode++;
      break;

    case 'h':
      print_usage();
      exit(0);
      break;

    case 'q':
      quiet_mode=1;
      break;

    case 'r':
      retry_mode=1;
      break;

    case 't':
      totals_mode=1;
      break;

    case 'n':
      noaction=1;
      break;

    case 'f':
      force=1;
      break;

    case 'b':
      csv=1;
      quiet_mode=1;
      break;

    case 'V':
      print_version();
      exit(0);
      break;

    case 'o':
      overwrite_mode=1;
      break;

    case 'p':
      preserve_mode=1;
      break;

    case 'P':
      preserve_perms=1;
      break;

    case 's':
      save_exif=0;
      save_iptc=0;
      save_com=0;
      save_icc=0;
      save_xmp=0;
      save_adobe=0;
      save_jfif=0;
      save_jfxx=0;
      break;

    case 'T':
            {
        double tmpvar;
        if (sscanf(optarg,"%lf", &tmpvar) == 1) {
          threshold=tmpvar;
          if (threshold < 0) threshold=0;
          if (threshold > 100) threshold=100;
        }
        else fatal("invalid argument for -T, --threshold");
      }
      break;

    case 'S':
            {
        unsigned int tmpvar;
        if (sscanf(optarg,"%u", &tmpvar) == 1) {
          if (tmpvar > 0 && tmpvar < 100 &&
            optarg[strlen(optarg)-1] == '%' ) {
            target_size=-tmpvar;
          } else {
            target_size=tmpvar;
          }
          quality=100;
        }
        else fatal("invalid argument for -S, --size");
      }
      break;

#ifdef PARALLEL_PROCESSING
    case 'w':
            {
        int tmpvar;
        if (sscanf(optarg, "%d", &tmpvar) == 1) {
          if (tmpvar > 0 && tmpvar <= MAX_WORKERS)
            max_workers = tmpvar;
        }
        else fatal("invalid argument for -w, --workers");
      }
      break;
#endif

    case 'F':
            {
        if (optarg[0] == '-' && optarg[1] == 0) {
          files_stdin = 1;
          break;
        }
        if (!is_file(optarg, NULL))
          fatal("argument for --files-from must be a file");
        if ((files_from = fopen(optarg, "r")) == NULL)
          fatal("cannot open file: '%s'", optarg);
      }
      break;

    case '?':
      exit(1);

    }
  }


  /* check for '-' option indicating input is from stdin... */
  i = optind;
  while (argv[i]) {
    if (argv[i][0]=='-' && argv[i][1]==0)
      stdin_mode=1;
    i++;
  }

  if (stdin_mode)
    stdout_mode=1;
  if (files_stdin)
    files_from = stdin;
  if (stdin_mode && files_from == stdin)
    fatal("cannot specify both --stdin and --files-stdin");
  if (all_normal && all_progressive)
    fatal("cannot specify both --all-normal and --all-progressive");
  if (auto_mode && (all_normal || all_progressive))
    fatal("cannot specify --all-normal or --all-progressive if using --auto-mode");
}


void own_signal_handler(int a)
{
  if (verbose_mode > 1)
    fprintf(stderr,PROGRAMNAME ": died from signal: %d\n",a);
  exit(2);
}


void write_markers(struct jpeg_decompress_struct *dinfo,
    struct jpeg_compress_struct *cinfo)
{
  jpeg_saved_marker_ptr mrk;
  int write_marker;
  const char *s_name;

  if (!cinfo || !dinfo)
    fatal("invalid call to write_markers()");

  mrk=dinfo->marker_list;
  while (mrk) {
    write_marker = 0;
    s_name = jpeg_special_marker_name(mrk);

    /* Check for markers to save... */

    if (save_com && mrk->marker == JPEG_COM)
      write_marker++;

    if (save_iptc && !strncmp(s_name, "IPTC", 5))
      write_marker++;

    if (save_exif && !strncmp(s_name, "Exif", 5))
      write_marker++;

    if (save_icc && !strncmp(s_name, "ICC", 4))
      write_marker++;

    if (save_xmp && !strncmp(s_name, "XMP", 4))
      write_marker++;

    if (save_jfxx && !strncmp(s_name, "JFXX", 5))
      write_marker++;

    if (save_adobe && !strncmp(s_name, "Adobe", 6))
      write_marker++;

    if (strip_none)
      write_marker++;


    /* libjpeg emits some markers automatically so skip these to avoid duplicates... */

    if (!strncmp(s_name, "JFIF", 5))
      write_marker=0;


    if (verbose_mode > 2)
      fprintf(jpeg_log_fh, " (Marker %s [%s]: %s)", jpeg_marker_name(mrk->marker),
        s_name, (write_marker ? "Keep" : "Discard"));
    if (write_marker)
      jpeg_write_marker(cinfo, mrk->marker, mrk->data, mrk->data_length);

    mrk=mrk->next;
  }
}


unsigned int parse_markers(const struct jpeg_decompress_struct *dinfo,
      char *str, unsigned int str_size, unsigned int *markers_total_size)
{
  jpeg_saved_marker_ptr m;
  unsigned int count = 0;
  char *seen;
  size_t marker_types = jpeg_special_marker_types_count();
  int com_seen = 0;
  int special;

  if ((seen = calloc(marker_types, 1)) == NULL)
    fatal("not enough of memory");

  str[0] = 0;
  *markers_total_size = 0;

  m = dinfo->marker_list;
  while (m) {
    count++;
    *markers_total_size += m->data_length;

    if ((special = jpeg_special_marker(m)) >= 0) {
      if (!seen[special])
        str_add_list(str, str_size, jpeg_special_marker_types[special].name, ",");
      seen[special]++;
    }

    if (m->marker == JPEG_COM && !com_seen) {
      str_add_list(str, str_size, "COM", ",");
      com_seen = 1;
    }

    m = m->next;
  }

  free(seen);

  return count;
}



int optimize(FILE *log_fh, const char *filename, const char *newname,
  const char *tmpdir, struct stat *file_stat,
  double *rate, double *saved)
{
  FILE *infile = NULL;
  FILE *outfile = NULL;
  const char *outfname = NULL;
  char tmpfilename[MAXPATHLEN];
  struct jpeg_decompress_struct dinfo;
  struct jpeg_compress_struct cinfo;
  struct my_error_mgr jcerr, jderr;
  JSAMPARRAY buf = NULL;

  unsigned char *outbuffer = NULL;
  size_t outbuffersize = 0;
  unsigned char *inbuffer = NULL;
  size_t inbuffersize = 0;
  size_t inbufferused = 0;
  unsigned char *tmpbuffer = NULL;
  size_t tmpbuffersize = 0;
  unsigned char *extrabuffer = NULL;
  size_t extrabuffersize = 0;

  jvirt_barray_ptr *coef_arrays = NULL;
  char marker_str[256];
  unsigned int marker_in_count, marker_in_size;

  long in_image_size = 0;
  long insize = 0, outsize = 0, lastsize = 0;
  int oldquality, searchdone;
  double ratio;
  size_t last_retry_size = 0;
  int retry_count = 0;
  int retry = 0;
  int res = -1;

  jpeg_log_fh = log_fh;

  /* Initialize decompression object */
  dinfo.err = jpeg_std_error(&jderr.pub);
  jpeg_create_decompress(&dinfo);
  jderr.pub.error_exit=my_error_exit;
  jderr.pub.output_message=my_output_message;
  jderr.jump_set = 0;

  /* Initialize compression object */
  cinfo.err = jpeg_std_error(&jcerr.pub);
  jpeg_create_compress(&cinfo);
  jcerr.pub.error_exit=my_error_exit;
  jcerr.pub.output_message=my_output_message;
  jcerr.jump_set = 0;

  if (rate)
    *rate = 0.0;
  if (saved)
    *saved = 0.0;

  if (filename) {
    if ((infile = fopen(filename, "rb")) == NULL) {
      warn("cannot open file: %s", filename);
      res = 1;
      goto exit_point;
    }
  } else {
    infile = stdin;
    set_filemode_binary(infile);
  }

retry_point:

  if (setjmp(jderr.setjmp_buffer)) {
    /* Error handler for decompress */
  abort_decompress:
    jpeg_abort_decompress(&dinfo);
    fclose(infile);
    free_line_buf(&buf, dinfo.output_height);
    if (!quiet_mode || csv)
      fprintf(log_fh,csv ? ",,,,,error\n" : " [ERROR]\n");
    jderr.jump_set=0;
    res = 1;
    goto exit_point;
  } else {
    jderr.jump_set=1;
  }


  /* Prepare to decompress */
  if (!retry) {
    if (!quiet_mode || csv) {
      fprintf(log_fh,csv ? "%s," : "%s ",(filename ? filename:"stdin"));
      fflush(log_fh);
    }

    if (stdin_mode || stdout_mode) {
      inbuffersize = IN_BUF_SIZE;
    } else {
      if ((inbuffersize = file_size(infile)) < IN_BUF_SIZE)
        inbuffersize = IN_BUF_SIZE;
    }
    if (inbuffer)
      free(inbuffer);
    if (!(inbuffer=calloc(inbuffersize, 1)))
      fatal("not enough memory");
  }
  global_error_counter=0;
  jpeg_save_markers(&dinfo, JPEG_COM, 0xffff);
  for (int i = 0; i < 16; i++) {
    jpeg_save_markers(&dinfo, JPEG_APP0 + i, 0xffff);
  }
  if (!retry) {
    jpeg_custom_src(&dinfo, infile, &inbuffer, &inbuffersize, &inbufferused, IN_BUF_SIZE);
  } else {
    if (retry == 1)
      jpeg_custom_mem_src(&dinfo, inbuffer, inbufferused);
    else
      jpeg_custom_mem_src(&dinfo, tmpbuffer, tmpbuffersize);
  }
  jpeg_read_header(&dinfo, TRUE);


  /* Check for known (Exif, IPTC, ICC , XMP, ...) markers */
  marker_in_count = parse_markers(&dinfo, marker_str, sizeof(marker_str),
          &marker_in_size);

  if (!retry) {
    if (verbose_mode > 1) {
      fprintf(log_fh,"%d markers found in input file (total size %d bytes)\n",
        marker_in_count,marker_in_size);
      fprintf(log_fh,"coding: %s\n", (dinfo.arith_code == TRUE ? "Arithmetic" : "Huffman"));
    }

    if (!quiet_mode || csv) {
      fprintf(log_fh,csv ? "%dx%d,%dbit,%c," : "%dx%d %dbit %c ",(int)dinfo.image_width,
        (int)dinfo.image_height,(int)dinfo.num_components*8,
        (dinfo.progressive_mode?'P':'N'));
      if (!csv)
        fprintf(log_fh,"%s",marker_str);
      fflush(log_fh);
    }
  }

  /* Decompress the image */
  if (quality >= 0 && retry != 1) {
    jpeg_start_decompress(&dinfo);

    /* Allocate line buffer to store the decompressed image */
    if (!(buf = calloc(dinfo.output_height, sizeof(JSAMPROW))))
      fatal("not enough memory");
    for (int i = 0; i < dinfo.output_height; i++) {
      if (!(buf[i]=calloc((size_t)dinfo.output_width * dinfo.out_color_components,
              sizeof(JSAMPLE))))
        fatal("not enough memory");
    }

    while (dinfo.output_scanline < dinfo.output_height) {
      jpeg_read_scanlines(&dinfo,&buf[dinfo.output_scanline],
          dinfo.output_height-dinfo.output_scanline);
    }
  } else {
    coef_arrays = jpeg_read_coefficients(&dinfo);
    if (!coef_arrays) {
      if (!quiet_mode)
        fprintf(log_fh, " (failed to read coefficients) ");
      goto abort_decompress;
    }
  }
  if (!retry) {
    in_image_size = inbufferused - dinfo.src->bytes_in_buffer;
    if(verbose_mode > 2)
      fprintf(log_fh, " (input image size: %lu (%lu))",
        in_image_size, inbufferused);
    if (stdin_mode) {
      insize = in_image_size;
    } else {
      if ((insize = file_size(infile)) < 0)
        fatal("failed to stat() input file");
      if (in_image_size > 0 && in_image_size < insize) {
        if (!quiet_mode)
          fprintf(log_fh, " (%lu bytes extraneous data found after end of image) ",
            insize - in_image_size);
        if (nofix_mode)
          global_error_counter++;
        if (save_extra) {
          extrabuffersize = insize - in_image_size;
          if (extrabuffer)
            free(extrabuffer);
          if (!(extrabuffer = calloc(extrabuffersize, 1)))
            fatal("not enough memory");
          if (fseek(infile, in_image_size, SEEK_SET))
            fatal("failed to seek input file");
          if (fread(extrabuffer, extrabuffersize, 1, infile) != 1)
            fatal("failed to read inputfile");
        }
      }
    }
    if (!quiet_mode) {
      fprintf(log_fh,(global_error_counter==0 ? " [OK] " : " [WARNING] "));
      fflush(log_fh);
    }

    if (nofix_mode && global_error_counter != 0) {
      /* Skip files containing any errors (or warnings) */
      goto abort_decompress;
    }

    if (dest && !noaction) {
      if (file_exists(newname) && !overwrite_mode) {
        if (!quiet_mode)
          fprintf(log_fh, " (target file already exists) ");
        goto abort_decompress;
      }
    }
  }


  /* Prepare to compress... */
  if (setjmp(jcerr.setjmp_buffer)) {
    /* Error handler for compress failures */
    if (!quiet_mode)
      fprintf(log_fh," [Compress ERROR: %s]\n",last_error);
    jpeg_abort_compress(&cinfo);
    jpeg_abort_decompress(&dinfo);
    fclose(infile);
    free_line_buf(&buf, dinfo.output_height);
    jcerr.jump_set=0;
    res = 2;
    goto exit_point;
  } else {
    jcerr.jump_set=1;
  }

  lastsize = 0;
  searchdone = 0;
  if (!retry) {
    oldquality = 200;
    if (target_size != 0) {
      /* Always start with quality 100 if -S option specified... */
      quality = 100;
    }
  }


binary_search_loop:

  /* Allocate memory buffer that should be large enough to store the output JPEG... */
  if (outbuffer)
    free(outbuffer);
  outbuffersize = insize + 32768;
  if (!(outbuffer=calloc(outbuffersize, 1)))
    fatal("not enough memory");

  /* setup custom "destination manager" for libjpeg to write to our buffer */
  jpeg_memory_dest(&cinfo, &outbuffer, &outbuffersize, 65536);


  if (quality >= 0 && retry != 1) {
    /* Lossy "optimization" ... */

    cinfo.in_color_space=dinfo.out_color_space;
    cinfo.input_components=dinfo.output_components;
    cinfo.image_width=dinfo.image_width;
    cinfo.image_height=dinfo.image_height;
    jpeg_set_defaults(&cinfo);
    jpeg_set_quality(&cinfo,quality,TRUE);
#ifdef HAVE_JINT_DC_SCAN_OPT_MODE
    if (jpeg_c_int_param_supported(&cinfo, JINT_DC_SCAN_OPT_MODE))
      jpeg_c_set_int_param(&cinfo, JINT_DC_SCAN_OPT_MODE, 1);
#endif
    if (all_normal || (!dinfo.progressive_mode && !all_progressive)) {
      /* Explicitly disable progressive mode. */
      cinfo.scan_info = NULL;
      cinfo.num_scans = 0;
    } else if (all_progressive || dinfo.progressive_mode) {
      /* Enable progressive mode. */
      jpeg_simple_progression(&cinfo);
    }
    cinfo.optimize_coding = TRUE;
#ifdef HAVE_ARITH_CODE
    if (arith_mode >= 0)
      cinfo.arith_code = (arith_mode > 0 ? TRUE : FALSE);
#endif
    if (dinfo.saw_JFIF_marker && (save_jfif || strip_none)) {
      cinfo.write_JFIF_header = TRUE;
    } else {
      cinfo.write_JFIF_header = FALSE;
    }
    if (dinfo.saw_Adobe_marker && (save_adobe || strip_none)) {
      /* If outputting Adobe marker, don't write JFIF marker... */
      cinfo.write_JFIF_header = FALSE;
    }

    jpeg_start_compress(&cinfo,TRUE);

    /* Write markers */
    write_markers(&dinfo,&cinfo);

    /* Write image */
    while (cinfo.next_scanline < cinfo.image_height) {
      jpeg_write_scanlines(&cinfo,&buf[cinfo.next_scanline],
          dinfo.output_height);
    }

  } else {
    /* Lossless optimization ... */

    jpeg_copy_critical_parameters(&dinfo, &cinfo);
#ifdef HAVE_JINT_DC_SCAN_OPT_MODE
    if (jpeg_c_int_param_supported(&cinfo, JINT_DC_SCAN_OPT_MODE))
      jpeg_c_set_int_param(&cinfo, JINT_DC_SCAN_OPT_MODE, 1);
#endif
    if (all_normal || (!dinfo.progressive_mode && !all_progressive)) {
      /* Explicitly disable progressive mode. */
      cinfo.scan_info = NULL;
      cinfo.num_scans = 0;
    } else if (all_progressive || dinfo.progressive_mode) {
      /* Enable progressive mode. */
      jpeg_simple_progression(&cinfo);
    }
    cinfo.optimize_coding = TRUE;
#ifdef HAVE_ARITH_CODE
    if (arith_mode >= 0)
      cinfo.arith_code = (arith_mode > 0 ? TRUE : FALSE);
#endif
    if (dinfo.saw_JFIF_marker && (save_jfif || strip_none)) {
      cinfo.write_JFIF_header = TRUE;
    } else {
      cinfo.write_JFIF_header = FALSE;
    }
    if (dinfo.saw_Adobe_marker && (save_adobe || strip_none)) {
      /* If outputting Adobe marker, don't write JFIF marker... */
      cinfo.write_JFIF_header = FALSE;
    }

    /* Write image */
    jpeg_write_coefficients(&cinfo, coef_arrays);

    /* Write markers */
    write_markers(&dinfo,&cinfo);

  }

  jpeg_finish_compress(&cinfo);
  outsize = outbuffersize + extrabuffersize;
  if (verbose_mode > 2)
    fprintf(log_fh, " (output image size: %lu (%lu))", outsize,extrabuffersize);

  if (target_size != 0 && !retry) {
    /* Perform (binary) search to try to reach target file size... */

    long osize = outsize/1024;
    long isize = insize/1024;
    long tsize = target_size;

    if (verbose_mode > 1)
      fprintf(log_fh, "(size=%ld)",outsize);
    if (tsize < 0) {
      tsize=((-target_size)*insize/100)/1024;
      if (tsize < 1)
        tsize = 1;
    }

    if (osize == tsize || searchdone || tsize > isize) {
      if (searchdone < 42 && lastsize > 0) {
        if (labs(osize-tsize) > labs(lastsize-tsize)) {
          if (verbose_mode)
            fprintf(log_fh,"(revert to %d)",oldquality);
          searchdone = 42;
          quality = oldquality;
          goto binary_search_loop;
        }
      }
      if (verbose_mode)
        fprintf(log_fh," ");

    } else {
      int newquality;
      double dif = abs(oldquality-quality) / 2.0;

      if (osize > tsize)
        newquality = quality - dif;
      else
        newquality = quality + dif + 0.5;

      if (dif < 1.0)
        searchdone = 1;
      if (newquality < 0) {
        newquality = 0;
        searchdone = 1;
      }
      if (newquality > 100) {
        newquality = 100;
        searchdone = 1;
      }

      oldquality = quality;
      quality = newquality;
      lastsize = osize;
      if (verbose_mode)
        fprintf(log_fh,"(try %d)",quality);
      goto binary_search_loop;
    }
  }

  jpeg_finish_decompress(&dinfo);
  free_line_buf(&buf, dinfo.output_height);

  if (retry_mode) {
    if ((retry == 0 || retry == 2) && quality >= 0 && outsize <= insize) {
      /* Retry compression until output file stops getting smaller
         or we hit max limit of iterations (10)... */
      if (retry_count == 0)
        last_retry_size = outsize + 1;
      if (++retry_count < 10 && outsize < last_retry_size) {
        if (tmpbuffer)
          free(tmpbuffer);
        tmpbuffer = outbuffer;
        tmpbuffersize = outbuffersize;
        outbuffer = NULL;
        last_retry_size = outsize;
        retry = 2;
        if (verbose_mode)
          fprintf(log_fh, "(retry%d: %lu) ", retry_count, outsize);
        goto retry_point;
      }
    }
    if (retry == 2) {
      if (verbose_mode)
        fprintf(log_fh, "(retry done: %lu) ", outsize);
      if (outsize > last_retry_size) {
        if (outbuffer)
          free(outbuffer);
        outbuffer = tmpbuffer;
        outbuffersize = tmpbuffersize;
        outsize = outbuffersize + extrabuffersize;
        tmpbuffer = NULL;
      }
    }
  }

  /* If auto_mode, try both progressive and non-progressive... */
  if (auto_mode) {
    int newmode = (dinfo.progressive_mode ? 0 : 1);
    if (retry != 3) {
      if (newmode)
        all_progressive = 1;
      else
        all_normal = 1;
      if (tmpbuffer)
        free(tmpbuffer);
      tmpbuffer = outbuffer;
      tmpbuffersize = outbuffersize;
      outbuffer = NULL;
      last_retry_size = outsize;
      retry = 3;
      if (verbose_mode)
        fprintf(log_fh, "(retry w/%s) ", (newmode ? "progressive" : "normal"));
      goto retry_point;
    } else {
      if (verbose_mode > 1)
        fprintf(log_fh, "(automode done: %lu) ", outsize);
      auto_mode = 0;
      if (outsize > last_retry_size) {
        if (verbose_mode)
          fprintf(log_fh, "(revert to %s) ", (!newmode ? "progressive" : "normal"));
        all_progressive = 0;
        all_normal = 0;
        if (outbuffer)
          free(outbuffer);
        outbuffer = tmpbuffer;
        outbuffersize = tmpbuffersize;
        outsize = outbuffersize + extrabuffersize;
        tmpbuffer = NULL;
      }
    }
  }

  /* In case "lossy" compression resulted larger file than original, retry with "lossless"... */
  if (quality >= 0 && outsize >= insize && retry != 1) {
    retry = 1;
    if (verbose_mode)
      fprintf(log_fh, "(retry w/lossless) ");
    goto retry_point;
  }

  fclose(infile);

  ratio = (insize - outsize) * 100.0 / insize;
  if (!quiet_mode || csv)
    fprintf(log_fh,csv ? "%ld,%ld,%0.2f," : "%ld --> %ld bytes (%0.2f%%), ",insize,outsize,ratio);
  if (rate) {
    *rate = (ratio < 0 ? 0.0 : ratio);
  }

  if ((outsize < insize && ratio >= threshold) || force) {
    if (saved) {
      *saved = (insize - outsize) / 1024.0;
    }
    if (!quiet_mode || csv)
      fprintf(log_fh,csv ? "optimized\n" : "optimized.\n");
    if (noaction) {
      res = 0;
      goto exit_point;
    }

    if (stdout_mode) {
      outfname=NULL;
      set_filemode_binary(stdout);
      if (fwrite(outbuffer,outbuffersize,1,stdout) != 1)
        fatal("%s, write failed to stdout",(stdin_mode ? "stdin" : filename));
    } else {
      if (preserve_perms && !dest) {
        /* make backup of the original file */
        int newlen = snprintf(tmpfilename, sizeof(tmpfilename),
            "%s.jpegoptim.bak", newname);
        if (newlen >= sizeof(tmpfilename))
          fatal("temp filename too long: %s", tmpfilename);

        if (verbose_mode > 1)
          fprintf(log_fh,"%s, creating backup as: %s\n",
            (stdin_mode ? "stdin" : filename), tmpfilename);
        if (file_exists(tmpfilename))
          fatal("%s, backup file already exists: %s",
            (stdin_mode ?" stdin" : filename), tmpfilename);
        if (copy_file(newname,tmpfilename))
          fatal("%s, failed to create backup: %s",
            (stdin_mode ? "stdin" : filename), tmpfilename);
        if ((outfile=create_file(newname))==NULL)
          fatal("%s, error opening output file: %s",
            (stdin_mode ? "stdin" : filename), newname);
        outfname = newname;
      } else {
        if (!(outfile = create_temp_file(tmpdir, "jpegoptim", tmpfilename, sizeof(tmpfilename))))
          fatal("error creating temporary file: %s", tmpfilename);
        outfname = tmpfilename;
      }

      if (verbose_mode > 1)
        fprintf(log_fh,"writing %lu bytes to file: %s\n",
          (long unsigned int)outbuffersize, outfname);
      if (fwrite(outbuffer, outbuffersize, 1, outfile) != 1)
        fatal("write failed to file: %s", outfname);
      if (save_extra && extrabuffersize > 0) {
        if (verbose_mode > 1)
          fprintf(log_fh,"writing %lu bytes to file: %s\n", extrabuffersize, outfname);
        if (fwrite(extrabuffer, extrabuffersize, 1, outfile) != 1)
          fatal("write failed to file: %s", outfname);
      }
      fclose(outfile);
    }

    if (outfname) {
      if (preserve_mode) {
        /* preserve file modification time */
        if (verbose_mode > 1)
          fprintf(log_fh,"set file modification time same as in original: %s\n",
            outfname);
#if defined(HAVE_UTIMENSAT) && defined(HAVE_STRUCT_STAT_ST_MTIM)
        struct timespec time_save[2];
        time_save[0].tv_sec = 0;
        time_save[0].tv_nsec = UTIME_OMIT; /* omit atime */
        time_save[1] = file_stat->st_mtim;
        if (utimensat(AT_FDCWD,outfname,time_save,0) != 0)
          warn("failed to reset output file time/date");
#else
        struct utimbuf time_save;
        time_save.actime=file_stat->st_atime;
        time_save.modtime=file_stat->st_mtime;
        if (utime(outfname,&time_save) != 0)
          warn("failed to reset output file time/date");
#endif
      }

      if (preserve_perms && !dest) {
        /* original file was already replaced, remove backup... */
        if (verbose_mode > 1)
          fprintf(log_fh,"removing backup file: %s\n", tmpfilename);
        if (delete_file(tmpfilename))
          warn("failed to remove backup file: %s", tmpfilename);
      } else {
        /* make temp file to be the original file... */

        /* preserve file mode */
        if (chmod(outfname,(file_stat->st_mode & 0777)) != 0)
          warn("failed to set output file mode");

        /* preserve file group (and owner if run by root) */
        if (chown(outfname,
            (geteuid()==0 ? file_stat->st_uid : -1),
            file_stat->st_gid) != 0)
          warn("failed to reset output file group/owner");

        if (verbose_mode > 1)
          fprintf(log_fh,"renaming: %s to %s\n", outfname, newname);
        if (rename_file(outfname, newname))
          fatal("cannot rename temp file");
      }
    }
  } else {
    if (!quiet_mode || csv)
      fprintf(log_fh,csv ? "skipped\n" : "skipped.\n");
    if (stdout_mode) {
      set_filemode_binary(stdout);
      if (fwrite(inbuffer, in_image_size, 1, stdout) != 1)
        fatal("%s, write failed to stdout",
          (stdin_mode ? "stdin" : filename));
    }
  }

  res = 0;

 exit_point:
  if (inbuffer)
    free(inbuffer);
  if (outbuffer)
    free(outbuffer);
  if (tmpbuffer)
    free(tmpbuffer);
  if (extrabuffer)
    free(extrabuffer);
  jpeg_destroy_compress(&cinfo);
  jpeg_destroy_decompress(&dinfo);

  return res;
}


#ifdef PARALLEL_PROCESSING
int wait_for_worker(FILE *log_fh)
{
  FILE *p;
  struct worker *w;
  char buf[1024];
  int wstatus;
  pid_t pid;
  int j, e;
  int state = 0;
  double val;
  double rate = 0.0;
  double saved = 0.0;


  if ((pid = wait(&wstatus)) < 0)
    return pid;

  w = NULL;
  for (j = 0; j < MAX_WORKERS; j++) {
    if (workers[j].pid == pid) {
      w = &workers[j];
      break;
    }
  }
  if (!w)
    fatal("Unknown worker[%d] process found\n", pid);

  if (WIFEXITED(wstatus)) {
    e = WEXITSTATUS(wstatus);
    if (verbose_mode)
      fprintf(log_fh, "worker[%d] [slot=%d] exited: %d\n",
        pid, j, e);
    if (e == 0) {
      //average_count++;
      //average_rate += rate;
      //total_save += saved;
    } else if (e == 1) {
      decompress_err_count++;
    } else if (e == 2) {
      compress_err_count++;
    }
  } else {
    fatal("worker[%d] killed", pid);
  }

  p = fdopen(w->read_pipe, "r");
  if (!p) fatal("fdopen failed()");
  while (fgets(buf, sizeof(buf), p)) {
    if (verbose_mode > 2)
      fprintf(log_fh, "worker[%d] PIPE: %s", pid, buf);
    if (state == 0 && buf[0] == '\n') {
      state=1;
      continue;
    }
    if (state == 1 && !strncmp(buf, "STAT", 4)) {
      state=2;
      continue;
    }
    if (state >= 2) {
      if (sscanf(buf, "%lf", &val) == 1) {
        if (state == 2) {
          rate = val;
        }
        else if (state == 3) {
          saved = val;
          average_count++;
          average_rate += rate;
          total_save += saved;
        }
      }
      state++;
      continue;
    }
    if (state == 0)
      fprintf(log_fh, "%s", buf);
  }
  close(w->read_pipe);
  w->pid = -1;
  w->read_pipe = -1;
  worker_count --;

  return pid;
}
#endif


#ifndef BUILD_FOR_OSS_FUZZ // Libfuzzer provides its own fuzzer
/****************************************************************************/
int main(int argc, char **argv)
{
  struct stat file_stat;
  char tmpfilename[MAXPATHLEN + 1],tmpdir[MAXPATHLEN + 1];
  char newname[MAXPATHLEN + 1], dest_path[MAXPATHLEN + 1];
  char namebuf[MAXPATHLEN + 2];
  const char *filename;
  int arg_idx;
  int res;
  double rate, saved;
  FILE *log_fh;
#ifdef PARALLEL_PROCESSING
  struct worker *w;
  int pipe_fd[2];
  pid_t pid;


  /* Allocate table to keep track of child processes... */
  if (!(workers = calloc(MAX_WORKERS, sizeof(struct worker))))
    fatal("not enough memory");
  for (int i = 0; i < MAX_WORKERS; i++) {
    workers[i].pid = -1;
    workers[i].read_pipe = -1;
  }
#endif

  umask(077);
  signal(SIGINT,own_signal_handler);
  signal(SIGTERM,own_signal_handler);

  /* Parse command line parameters */
  parse_arguments(argc, argv, dest_path, sizeof(dest_path));
  log_fh = (stdout_mode ? stderr : stdout);
  if (quiet_mode)
    verbose_mode = 0;

  if (verbose_mode) {
    if (quality >= 0 && target_size == 0)
      fprintf(log_fh, "Image quality limit set to: %d\n", quality);
    if (threshold >= 0)
      fprintf(log_fh, "Compression threshold (%%) set to: %0.1lf\n", threshold);
    if (all_normal)
      fprintf(log_fh, "All output files will be non-progressive\n");
    if (all_progressive)
      fprintf(log_fh, "All output files will be progressive\n");
    if (target_size > 0)
      fprintf(log_fh, "Target size for output files set to: %d Kbytes.\n",
        target_size);
    if (target_size < 0)
      fprintf(log_fh, "Target size for output files set to: %d%%\n",
        -target_size);
#ifdef PARALLEL_PROCESSING
    if (max_workers > 0)
      fprintf(log_fh, "Using maximum of %d parallel threads\n", max_workers);
#endif
  }


  if (stdin_mode) {
    /* Process just one file, if source is stdin... */
    res = optimize(stderr, NULL, NULL, NULL, &file_stat, NULL, NULL);
    return (res == 0 ? 0 : 1);
  }

  arg_idx = (optind > 0 ? optind : 1);
  if (files_from == NULL && argc <= arg_idx) {
    if (!quiet_mode)
      fprintf(stderr, PROGRAMNAME ": file argument(s) missing\n"
        "Try '" PROGRAMNAME " --help' for more information.\n");
    exit(1);
  }


  /* Main loop to process input files */
  do {
    if (files_from) {
      if (!fgetstr(namebuf, sizeof(namebuf), files_from))
        break;
      filename = namebuf;
    } else {
      filename = argv[arg_idx];
    }

    if (*filename == 0)
      continue;
    if (verbose_mode > 1)
      fprintf(log_fh, "processing file: %s\n", filename);
    if (strnlen(filename, MAXPATHLEN + 1) > MAXPATHLEN) {
      warn("skipping too long filename: %s", filename);
      continue;
    }

    if (!noaction) {
      /* generate tmp dir & new filename */
      if (dest) {
        strncopy(tmpdir, dest_path, sizeof(tmpdir));
        strncopy(newname, dest_path, sizeof(newname));
        if (!splitname(filename, tmpfilename, sizeof(tmpfilename)))
          fatal("splitname() failed for: %s", filename);
        strncatenate(newname, tmpfilename, sizeof(newname));
      } else {
        if (!splitdir(filename, tmpdir, sizeof(tmpdir)))
          fatal("splitdir() failed for: %s", filename);
        strncopy(newname, filename, sizeof(newname));
      }
    }

    if (file_exists(filename)) {
      if (!is_file(filename, &file_stat)) {
        if (is_directory(filename))
          warn("skipping directory: %s", filename);
        else
          warn("skipping special file: %s", filename);
        continue;
      }
    } else {
      warn("file not found: %s", filename);
      continue;
    }

#ifdef PARALLEL_PROCESSING
    if (max_workers > 1) {
      /* Multi process mode, run up to max_workers processes simultaneously... */

      if (worker_count >= max_workers) {
        // wait for a worker to exit...
        wait_for_worker(log_fh);
      }
      if (pipe(pipe_fd) < 0)
        fatal("failed to open pipe");
      pid = fork();
      if (pid < 0)
        fatal("fork() failed");
      if (pid == 0) {
        /* Child process starts here... */
        if (files_from)
          fclose(files_from);
        close(pipe_fd[0]);
        FILE *p;

        if (!(p = fdopen(pipe_fd[1],"w")))
          fatal("worker: fdopen failed");

        res = optimize(p, filename, newname, tmpdir, &file_stat, &rate, &saved);
        if (res == 0)
          fprintf(p, "\n\nSTATS\n%lf\n%lf\n", rate, saved);
        exit(res);
      } else {
        /* Parent continues here... */
        int j;

        close(pipe_fd[1]);

        w = NULL;
        for (j = 0; j < MAX_WORKERS; j++) {
          if (workers[j].pid < 0) {
            w = &workers[j];
            break;
          }
        }
        if (!w)
          fatal("no space to start a new worker (%d)", worker_count);
        w->pid = pid;
        w->read_pipe = pipe_fd[0];
        worker_count++;
        if (verbose_mode > 0)
          fprintf(log_fh, "worker[%d] [slot=%d] started\n", pid, j);;
      }

    } else
#endif
    {
      /* Single process mode, process one file at a time... */

      res = optimize(log_fh, filename, newname, tmpdir, &file_stat, &rate, &saved);
      if (res == 0) {
        average_count++;
        average_rate += rate;
        total_save += saved;
      } else if (res == 1) {
        decompress_err_count++;
      } else if (res == 2) {
        compress_err_count++;
      }
    }

  } while (files_from || ++arg_idx < argc);


#ifdef PARALLEL_PROCESSING
  /* Wait for any child processes to exit... */
  if (max_workers > 1) {
    if (verbose_mode) {
      fprintf(log_fh, "Waiting for %d workers to finish...\n", worker_count);
    }
    while ((pid = wait_for_worker(log_fh)) > 0) {
      if (verbose_mode > 2)
        fprintf(log_fh, "worker[%d] done\n", pid);
    }
  }
#endif

  if (totals_mode && !quiet_mode)
    fprintf(log_fh, "Average ""compression"" (%ld files): %0.2f%% (total saved %0.0fk)\n",
      average_count, average_rate/average_count, total_save);


  return (decompress_err_count > 0 || compress_err_count > 0 ? 1 : 0);;
}
#else
void fuzz_set_target_size(const int new_target_size)
{
  target_size = new_target_size;
}
#endif /* BUILD_FOR_OSS_FUZZ */
/* eof :-) */

Coverage Report

Created: 2026-01-13 06:49