1 /* Load an ICC profile for embedding in an output file
2 Copyright (C) 2017 Aaron Muir Hamilton <aaron@correspondwith.me>
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>.
16 */
17
18 #include "../include/sane/config.h"
19
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <sys/stat.h>
23
24 void *
sanei_load_icc_profile(const char * path,size_t * size)25 sanei_load_icc_profile (const char *path, size_t *size)
26 {
27 FILE *fd = NULL;
28 size_t stated_size = 0;
29 void *profile = NULL;
30 struct stat s;
31
32 fd = fopen(path, "r");
33
34 if (!fd)
35 {
36 fprintf(stderr, "Could not open ICC profile %s\n", path);
37 }
38 else
39 {
40 fstat(fileno(fd), &s);
41 stated_size = 16777216 * fgetc(fd) + 65536 * fgetc(fd) + 256 * fgetc(fd) + fgetc(fd);
42 rewind(fd);
43
44 if (stated_size > (size_t) s.st_size)
45 {
46 fprintf(stderr, "Ignoring ICC profile because file %s is shorter than the profile\n", path);
47 }
48 else
49 {
50 profile = malloc(stated_size);
51
52 if (fread(profile, stated_size, 1, fd) != 1)
53 {
54 fprintf(stderr, "Error reading ICC profile %s\n", path);
55 free(profile);
56 }
57 else
58 {
59 fclose(fd);
60 *size = stated_size;
61 return profile;
62 }
63 }
64 fclose(fd);
65 }
66 return NULL;
67 }
68