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purr-c
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20 Commits

Author SHA1 Message Date
Érico Rolim d5ce01c91f Add install target and symlinks. 
purr can be symlinked to meow and meowd, in which cases it has special
behavior.
 2020-09-14 01:16:14 -03:00
Érico Rolim e01615adff Add test for mmap_file and simplify makefile. 
Also fix typo in mmap_file.h.
 2020-09-14 00:43:59 -03:00
Érico Rolim 06eb9d4222 Split mmap_file implementation. 
Also add some useful definitions.
 2020-09-14 00:32:16 -03:00
Érico Rolim 52f7829b48 Fix some compiler warnings. 2020-09-14 00:09:09 -03:00
Érico Rolim fc9fc8dbf9 Add README and LICENSE. 2020-09-13 21:40:15 -03:00
Érico Rolim a80f082b48 Remove padding bytes (uglily) from encrypted recv. 2020-09-13 20:32:37 -03:00
Érico Rolim f13c0c2e3e Add decryption for recv. 
A few fixes and hacks all around, but can now do:

  ./purr -e recv (./purr -e send makefile)

And output the original page.
 2020-09-13 20:17:58 -03:00
Érico Rolim e20d8ae124 Add get_encryption_params. 
This function is used to split the links to encrypted content into
useful parts.
 2020-09-13 20:17:03 -03:00
Érico Rolim 71d813af3e Switch to single makefile. 2020-09-13 18:20:15 -03:00
Érico Rolim b70d741b03 Enable IV randomization. 2020-09-13 18:08:52 -03:00
Érico Rolim 94f8f4f61d Enable encrypted pastes properly. 
Add base64 encoding per the pattern expected by the web interface.

Fix some pointers and file size things in purr/files.

TODO: files are cut off at random points, despite the efforts to remove
verification of null characters in libbaseencode.
 2020-09-13 18:05:43 -03:00
Érico Rolim 1b4c19665c Fix some issues with the mmap impl. 
Main one was using file->data instead of file->cursor in
write_into_mmap.

Switching to ftruncate in place of posix_fallocate was done for compat
reasons (posix_fallocate isn't available everywhere _and_ it can fail on
some file systems).
 2020-09-13 16:08:40 -03:00
Érico Rolim baa013afae Move to mmap implementation. 
Using FILE* is error prone and limited.
 2020-09-13 13:32:28 -03:00
Érico Rolim 32f9910ece Fix encryption function. 
Fix pointer parameters as function returns.
Add file clean-up as an atexit functionality.
 2020-09-13 01:06:39 -03:00
Érico Rolim 593aaabfec Add external libbaseencode. 2020-09-13 01:06:29 -03:00
Érico Rolim 95f4c0192b Add tests for clean_up_links. 
Clean up makefile.
 2020-09-12 23:49:38 -03:00
Érico Rolim 5b7ec3ead5 Implement print_hex to print byte buffers. 
Also add tests for it.
 2020-09-12 23:30:13 -03:00
Érico Rolim dd30aa72a8 Split encrypt.c and fix use-after-free. 
UAF from genalloc and stralloc frees.

Also remove randomization of IV, not used in bsd.ac.
 2020-09-12 23:28:49 -03:00
Érico Rolim f3069bb932 Split functionality into different files. 2020-09-10 23:33:52 -03:00
Érico Rolim e1ffd24466 Initial commit. 2020-09-10 23:11:38 -03:00