Commit Graph

65 Commits

Author SHA1 Message Date
7571ef42c6
fix: Cast time_t to a known type for snprintf() 2023-02-06 23:18:05 +01:00
88d6fbffb7
fix: Check for _WIN32 instead of _MSC_VER 2023-02-06 23:17:28 +01:00
8cb5175630
fix: Do not #include <sys/types.h> on Windows
Instead, we provide our own typedef for mode_t, uid_t and gid_t, and we get time_t from <time.h>.
2023-02-05 14:22:31 +01:00
5bfc7e45ac
chore: Adjust comment in minitar_write_file_entry() 2023-02-05 14:14:37 +01:00
482ac6d949
feat: Add write support
This uses a new struct (struct minitar_w).
This struct is initialized using the minitar_open_w function, and deleted using minitar_close_w.

The functions to write to an archive are minitar_write_file_entry() and minitar_write_special_entry().
The difference is that regular files have content, while the rest (special entries) do not.

This commit also adds a new example program (pack), which can create tar archives from files (no directory support though).

Archives created using pack and minitar can be read and extracted using GNU tar!!

Documentation is coming in another commit.
2023-02-04 19:02:08 +01:00
5b0d597c09
feat: Add support for block and character devices 2023-01-29 22:07:54 +01:00
1f08cf4b31
feat: Add support for FIFOs 2023-01-27 23:00:53 +01:00
3772e9e3a6
feat: Add support for hard links 2023-01-27 22:46:18 +01:00
599cac5811
feat: Add support for symbolic links
All the pieces were in place, we just needed to put them together.

Sorry, but sub-500 LoC isn't gonna work anymore...
2023-01-26 22:12:42 +01:00
4c90f9078b
fix: Use memcpy() in minitar_strlcpy()
This allows the platform to provide a more optimized and FAST version of memcpy than
our manual implementation inside strlcpy.
2023-01-26 21:40:57 +01:00
d8faf424ad
fix: Skip the padding field when calculating header checksums 2023-01-19 22:32:01 +01:00
9a7629459e
chore: Add copyright headers to all source files 2023-01-12 21:04:52 +01:00
27dac123f4
fix: Make minitar_read_contents() take a const pointer to entry 2023-01-12 20:03:42 +01:00
dead1e3ee2
feat: Move all internal structures to a minitar_entry_internal struct 2023-01-12 19:20:32 +01:00
d9b0dce41a
Remove minitar_panic() wrapper around minitar_handle_panic() 2023-01-12 19:01:55 +01:00
e568e88617
Remove assertion that was not used
minitar_static_dup() is always called with sizes MUCH smaller than 1024.
2023-01-12 19:00:12 +01:00
7b83dce96a
feat: calculate header checksums and validate them against hdr->chksum
Fixes #2.
2023-01-11 21:02:37 +01:00
f2f4d4ddab
Update tar.h to use MSVC-compatible struct packing
Fixes #3.
2023-01-08 12:47:09 +01:00
55276a78e2
Add newlines at EOF so clang doesn't complain 2022-12-31 12:51:47 +01:00
ab80b8ba45
Correct includes 2022-12-31 12:48:53 +01:00
39d5ee5b9a
Remove dependency on strtoul() and strtoull() by making our own specialized parse_octal() function 2022-12-31 12:40:21 +01:00
165352cdca
Bounds checking :) 2022-12-30 11:13:55 +01:00
d018d128a0
Optionally ignore unsupported types instead of panicking 2022-12-30 11:13:21 +01:00
7d4e774cf7
Rewrite the entire API just to eliminate heap allocations
Just bumping minor because nobody uses this and I don't want to jump up to 2.0.0
2022-12-25 14:33:47 +01:00
89bc990725
More optimization and heap elimination 2022-12-25 13:31:11 +01:00
555059a742
PERFORMANCE OPTIMIZATIONS 2022-12-25 13:21:09 +01:00
41a1e23abf
Remove -ansi and make it compile under TCC 2022-12-25 13:06:02 +01:00
51b09f35ad
MSVC does not have __attribute__((weak)) 2022-12-25 13:00:47 +01:00
23c313d9cf
Get rid of libgen.h in favor of our own basename :) 2022-12-25 12:51:35 +01:00
c78566bb27 Split basename parsing into a helper function 2022-12-01 19:37:37 +01:00
125ec8f063 Provide strdup ourselves 2022-12-01 19:30:51 +01:00
28d1eab1c1 Remove character and block devices from supported entry types
Closes #1.
2022-11-30 11:20:13 +01:00
eeb7bccda8 Skip null-terminating a result already null-terminated by strlcpy() 2022-11-30 11:14:11 +01:00
e922cfe8b9 read_contents(): shortcircuit if an entry is empty 2022-11-30 10:36:19 +01:00
7b5e6196a7 Make some functions only used in util.c static 2022-11-23 20:59:15 +01:00
f156f8472e attempt_read_entry -> try_to_read_valid_entry 2022-11-23 20:56:57 +01:00
cdf1e0bcba Make minitar_read_contents cleaner 2022-11-23 20:56:08 +01:00
726afbae15 Update tar.h 2022-11-23 20:52:18 +01:00
408342cb1d Remove shadow function 2022-11-23 20:41:44 +01:00
9420107a55 More commenting 2022-11-23 20:40:47 +01:00
9fe8159d5a More commenting + minitar_get_size_in_blocks -> minitar_align_up_to_block_size 2022-11-23 20:39:34 +01:00
653f9a90d0 Provide our own strndup + a lot more comments going on 2022-11-23 20:32:05 +01:00
f929a860c4 Be more explicit about "what" is necessary to read the file properly 2022-11-23 18:32:42 +01:00
fd85cf1c6a Full path is now metadata->path and basename metadata->name
Shouldn't have rushed to 1.0.0 so quickly. Oh well, I guess I can allow 1.1.0...
2022-11-23 18:32:10 +01:00
b7c27a25a6 Reorganize minitar_attempt_read_entry 2022-11-22 17:28:34 +01:00
ba7b77bdae Rename internal function minitar_parse_tar_header -> minitar_parse_metadata_from_tar_header 2022-11-22 17:28:15 +01:00
0fbcdde399 Return fclose's status code 2022-11-22 17:25:17 +01:00
d123c49946 Do not automatically read an entry's contents, leave it up to the user
This API change modifies minitar_read_entry to skip over the file's contents and instead store the current read position in the entry.

struct minitar_entry no longer has a ptr field, but has a position field (of type fpos_t) for internal use.

minitar_free_entry no longer frees entry->ptr.

A new function has been added, minitar_read_contents().
It reads a certain number of bytes from an entry (which is capped to the entry's size) into a user-provided buffer.
This function can be called at any time provided it is called with a valid archive stream and entry.
This is achieved by calling fgetpos() to store the start of the entry's contents in the entry's position field while reading it.
Then minitar_read_contents() will store the current position, rewind to the entry's position, read the chosen number of bytes from the archive, and then rewind back to the current position.

Since this is a breaking change, it needs a major version bump. Since there was no version, I bumped it to 1.0.0 :)
2022-11-21 20:20:37 +01:00
9695889040 Add FIXME 2022-11-21 19:17:29 +01:00
e3fae29713 Safer string copying 2022-11-21 19:15:52 +01:00