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Properly parse TTC tables with digital signatures

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* src/sfnt.c (sfnt_read_ttc_header): Don't inadvertently
overwrite first two offsets while reading the digital signature.
This commit is contained in:
Po Lu 2024-01-06 15:24:58 +08:00
parent 3788952327
commit 2f59052602
1 changed files with 3 additions and 3 deletions
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6
src/sfnt.c
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@ -6195,7 +6195,7 @@ sfnt_read_ttc_header (int fd)
size = (SFNT_ENDOF (struct sfnt_ttc_header, ul_dsig_offset,
uint32_t)
- offsetof (struct sfnt_ttc_header, ul_dsig_tag));
rc = read (fd, &ttc->ul_dsig_offset, size);
rc = read (fd, &ttc->ul_dsig_tag, size);
if (rc == -1 || rc < size)
{
xfree (ttc);
@ -20631,8 +20631,8 @@ main (int argc, char **argv)
return 1;
}
#define FANCY_PPEM 44
#define EASY_PPEM 44
#define FANCY_PPEM 14
#define EASY_PPEM 14
interpreter = NULL;
head = sfnt_read_head_table (fd, font);