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/* Load an ICC profile for embedding in an output file
Copyright (C) 2017 Aaron Muir Hamilton <aaron@correspondwith.me>
This program 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 2 of the
License, or (at your option) any later version.
This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "../include/sane/config.h"
#include <stdlib.h>
#include <stdio.h>
#include <sys/stat.h>
void *
sanei_load_icc_profile (const char *path, size_t *size)
{
FILE *fd = NULL;
size_t stated_size = 0;
void *profile = NULL;
struct stat s;
fd = fopen(path, "r");
if (!fd)
{
fprintf(stderr, "Could not open ICC profile %s\n", path);
}
else
{
fstat(fileno(fd), &s);
stated_size = 16777216 * fgetc(fd) + 65536 * fgetc(fd) + 256 * fgetc(fd) + fgetc(fd);
rewind(fd);
if (stated_size > (size_t) s.st_size)
{
fprintf(stderr, "Ignoring ICC profile because file %s is shorter than the profile\n", path);
}
else
{
profile = malloc(stated_size);
if (fread(profile, stated_size, 1, fd) != 1)
{
fprintf(stderr, "Error reading ICC profile %s\n", path);
free(profile);
}
else
{
fclose(fd);
*size = stated_size;
return profile;
}
}
fclose(fd);
}
return NULL;
}
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