I am stuggling with a function (normal given my lack of nim a C knowledge). The header contains:
extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
unz_file_info64 *pfile_info,
char *szFileName,
uLong fileNameBufferSize,
void *extraField,
uLong extraFieldBufferSize,
char *szComment,
uLong commentBufferSize));
err = unzGetCurrentFileInfo64(uf,&file_info,filename_inzip,sizeof(filename_inzip),NULL,0,NULL,0);
What I have done in nim so far:
#proc fmi_zip_unzip*(zip_file_path: cstring; output_folder: cstring;
# callbacks: ptr jm_callbacks): jm_status_enu_t
#int unzip(const char *zipfilename, const char *dirname);
{.deadCodeElim: on.}
#const libname = "/usr/lib/libminizip.so"
#type
# unzFile* = pointer
{.passl: gorge("pkg-config --libs minizip") .}
{.passc: gorge("pkg-config --cflags minizip") .}
#{.push header:"unzip.h"}
#{.push dynlib:libname.}
#unzFile ZEXPORT unzOpen64 OF((const void *path));
#proc unzOpen64*(zipfilename: cstring): pointer #{.header:"<minizip-master/include/miniunz.h>".}
#header:"unzip.h"
type
unz_global_info64* = ref object
number_entry:uint64 # total number of entries in the central dir on this disk
size_comment:uint32 # size of the global comment of the zipfile
unz_global_info* = object
number_entry:uint32 ## total number of entries in the central dir on this disk
size_comment:uint32 ## size of the global comment of the zipfile
tm_unz* = object
tm_sec:uint16 #; /* seconds after the minute - [0,59] */
tm_min:uint16 #; /* minutes after the hour - [0,59] */
tm_hour:uint16 #; /* hours since midnight - [0,23] */
tm_mday:uint16 #; /* day of the month - [1,31] */
tm_mon:uint16 #; /* months since January - [0,11] */
tm_year:uint16 #; /* years - [1980..2044] */
unz_file_info64* = ref object
version:uint16 # version made by 2 bytes
version_needed:uint16 # version needed to extract 2 bytes
flag:uint16 # general purpose bit flag 2 bytes
compression_method:uint16 # compression method 2 bytes
dosDate:uint32 # last mod file date in Dos fmt 4 bytes
crc:uint32 # crc-32 4 bytes
compressed_size:uint64 # compressed size 8 bytes
uncompressed_size:uint64 # uncompressed size 8 bytes
size_filename:uint16 # filename length 2 bytes
size_file_extra:uint16 # extra field length 2 bytes
size_file_comment:uint16 # file comment length 2 bytes
disk_num_start:uint16 # disk number start 2 bytes
internal_fa:uint16 # internal file attributes 2 bytes
external_fa:uint32 # external file attributes 4 bytes
tmu_date:tm_unz
{.push importc.}
proc unzOpen64*(zipfilename: cstring): pointer #{. importc:"unzOpen64"}
proc unzGetGlobalInfo64*(file:pointer, pglobal_info:unz_global_info64):int
#type fname:char[256]
proc unzGetCurrentFileInfo64*( file:pointer,
pfile_info:unz_file_info64,
szFileName:array[256,int],
fileNameBufferSize:int,
extraField:pointer,
extraFieldBufferSize:uint64,
szComment:cstring,
commentBufferSize:uint64):int
#{.pop.} # dynlib
#{.pop.}
{.pop.} # importc
#var error:cint
#var uf:unzFile
var uf = unzOpen64("./test.zip")
var info = new(unz_global_info64)
var error = unzGetGlobalInfo64(uf,info)
echo "----INFO----"
echo repr(info)
echo info.number_entry
echo "----FILE LIST----"
var filename_inzip:array[256,int] #cstring
var pfile_info = new(unz_file_info64)
var filename_len:int
error = unzGetCurrentFileInfo64(uf,pfile_info,filename_inzip,filename_len,nil,0,"" ,0)
echo "ERROR: ", error
#echo "Version: ", pfile_info.version
#echo pfile_info.size_filename
#echo pfile_info.uncompressed_size
echo "Name: ",$filename_inzip, filename_len
echo repr(pfile_info)
What I get is:
----INFO----
ref 0x7f5ca1150048 --> [number_entry = 1,
size_comment = 0]
1
----FILE LIST----
ERROR: 0
Name: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]0
ref 0x7f5ca1151048 --> [version = 798,
version_needed = 0,
flag = 0,
compression_method = 0,
dosDate = 20,
crc = 0,
compressed_size = 0,
uncompressed_size = 8,
size_filename = 36253,
size_file_extra = 19852,
size_file_comment = 0,
disk_num_start = 0,
internal_fa = 35672,
external_fa = 0,
tmu_date = [tm_sec = 1556,
tm_min = 5,
tm_hour = 0,
tm_mday = 0,
tm_mon = 1705,
tm_year = 5]]
Obvously I was expecting the name of the file to have something. The values in general doesn't make much sense, so it looks I did something wrong. Does anybody can see it?
printf("\nversion: %d version_needed: %d flag: %d\n", sizeof(file_info.version), sizeof(file_info.version_needed), sizeof(file_info.flag));
printf("compression_method: %d dosDate: %d crc: %d\n", sizeof(file_info.compression_method), sizeof(file_info.dosDate), sizeof(file_info.crc));
printf("compressed_size: %d uncompressed_size: %d size_filename: %d\n", sizeof(file_info.compressed_size), sizeof(file_info.uncompressed_size), sizeof(file_info.size_filename));
printf("size_file_extra: %d\n", sizeof(file_info.size_file_extra));
printf("size_file_comment: %d\n", sizeof(file_info.size_file_comment));
printf("size_file_comment: %d\n", sizeof(file_info.size_file_comment));As consequence, I realized that the appropriate sizes were:
tm_unz* = object
tm_sec:uint32 #; /* seconds after the minute - [0,59] */
tm_min:uint32 # ; /* minutes after the hour - [0,59] */
tm_hour:uint32 #; /* hours since midnight - [0,23] */
tm_mday:uint32 #; /* day of the month - [1,31] */
tm_mon:uint32 #; /* months since January - [0,11] */
tm_year:uint32 #; /* years - [1980..2044] */
# uLong (4 bytes): uint32
unz_file_info64* = ref object #{.packed.}
version:uint64 # version made by 2 bytes // uLong
version_needed:uint64 # version needed to extract 2 bytes // uLong
flag:uint64 # general purpose bit flag 2 bytes // uLong
compression_method:uint64 # compression method 2 bytes // uLong
dosDate:uint64 # last mod file date in Dos fmt 4 bytes // uLong
crc:uint64 # crc-32 4 bytes // uLong
compressed_size:uint64 # compressed size 8 bytes // ZPOS64_T
uncompressed_size:uint64 # uncompressed size 8 bytes // ZPOS64_T 329385
size_filename:uint64 # filename length 2 bytes // uLong
size_file_extra:uint64 # extra field length 2 bytes // uLOng
size_file_comment:uint64 # file comment length 2 bytes // uLong
disk_num_start:uint64 # disk number start 2 bytes // uLong
internal_fa:uint64 # internal file attributes 2 bytes // uLong
external_fa:uint64 # external file attributes 4 bytes // uLong
tmu_date:tm_unz # tm_unz