[Bug 14171] [feature request] zip program

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=14171

--- Comment #1 from Denys Vlasenko <vda.linux at googlemail.com> ---
miniz.c is WAY too large.

$ cc -Os -c miniz.c 
miniz.c:3079:9: note: ‘#pragma message: Using fopen, ftello, fseeko, stat()
etc. path for file I/O - this path may not support large files.’
 3079 | #pragma message("Using fopen, ftello, fseeko, stat() etc. path for file
I/O - this path may not support large files.")
      |         ^~~~~~~
$ size miniz.o 
   text    data     bss     dec     hex filename
  57201       0       0   57201    df71 miniz.o

For comparison, existing busybox code to handle zip file format:
$ size unzip.o 
   text    data     bss     dec     hex filename
   3799       0       0    3799     ed7 unzip.o
gzip decompressor per se:
$ size libarchive/decompress_gunzip.o
   text    data     bss     dec     hex filename
   4950       0       0    4950    1356 libarchive/decompress_gunzip.o
and the gzip compression code:
$ size gzip.o 
   text    data     bss     dec     hex filename
   5854       0       0    5854    16de gzip.o

I would prefer something like 15kb or less of code to support .zip file
creation. Not 57kb.

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