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author | Robin Watts <robin.watts@artifex.com> | 2015-05-14 17:12:42 +0100 |
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committer | Robin Watts <robin.watts@artifex.com> | 2015-05-15 13:06:56 +0100 |
commit | 7d5ff30c37c9e5b271fdb2b8cb3219068048322e (patch) | |
tree | 5f60d1d03235f2cff161207e00515c5a4a69ef73 /source/pdf/pdf-pkcs7.c | |
parent | 250e8a11e1debfbd9c4fc84ad895bf923aac135e (diff) | |
download | mupdf-7d5ff30c37c9e5b271fdb2b8cb3219068048322e.tar.xz |
Support pdf files larger than 2Gig.
If FZ_LARGEFILE is defined when building, MuPDF uses 64bit offsets
for files; this allows us to open streams larger than 2Gig.
The downsides to this are that:
* The xref entries are larger.
* All PDF ints are held as 64bit things rather than 32bit things
(to cope with /Prev entries, hint stream offsets etc).
* All file positions are stored as 64bits rather than 32.
The implementation works by detecting FZ_LARGEFILE. Some #ifdeffery
in fitz/system.h sets fz_off_t to either int or int64_t as appropriate,
and sets defines for fz_fopen, fz_fseek, fz_ftell etc as required.
These call the fseeko64 etc functions on linux (and so define
_LARGEFILE64_SOURCE) and the explicit 64bit functions on windows.
Diffstat (limited to 'source/pdf/pdf-pkcs7.c')
-rw-r--r-- | source/pdf/pdf-pkcs7.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/source/pdf/pdf-pkcs7.c b/source/pdf/pdf-pkcs7.c index 8feb07bb..15609153 100644 --- a/source/pdf/pdf-pkcs7.c +++ b/source/pdf/pdf-pkcs7.c @@ -638,11 +638,11 @@ void pdf_write_digest(fz_context *ctx, pdf_document *doc, char *filename, pdf_ob if (p7_len*2 + 2 > digest_length) fz_throw(ctx, FZ_ERROR_GENERIC, "Insufficient space for digest"); - f = fopen(filename, "rb+"); + f = fz_fopen(filename, "rb+"); if (f == NULL) fz_throw(ctx, FZ_ERROR_GENERIC, "Failed to write digest"); - fseek(f, digest_offset+1, SEEK_SET); + fz_fseek(f, digest_offset+1, SEEK_SET); for (i = 0; i < p7_len; i++) fprintf(f, "%02x", p7_ptr[i]); |