93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
#include <zipfile/zipfile.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
void dump_zipfile(FILE* to, zipfile_t file);
|
|
|
|
int
|
|
main(int argc, char** argv)
|
|
{
|
|
FILE* f;
|
|
size_t size, unsize;
|
|
void* buf;
|
|
void* scratch;
|
|
zipfile_t zip;
|
|
zipentry_t entry;
|
|
int err;
|
|
enum { HUH, LIST, UNZIP } what = HUH;
|
|
|
|
if (strcmp(argv[2], "-l") == 0 && argc == 3) {
|
|
what = LIST;
|
|
}
|
|
else if (strcmp(argv[2], "-u") == 0 && argc == 5) {
|
|
what = UNZIP;
|
|
}
|
|
else {
|
|
fprintf(stderr, "usage: test_zipfile ZIPFILE -l\n"
|
|
" lists the files in the zipfile\n"
|
|
" test_zipfile ZIPFILE -u FILENAME SAVETO\n"
|
|
" saves FILENAME from the zip file into SAVETO\n");
|
|
return 1;
|
|
}
|
|
|
|
f = fopen(argv[1], "r");
|
|
if (f == NULL) {
|
|
fprintf(stderr, "couldn't open %s\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
fseek(f, 0, SEEK_END);
|
|
size = ftell(f);
|
|
rewind(f);
|
|
|
|
buf = malloc(size);
|
|
fread(buf, 1, size, f);
|
|
|
|
zip = init_zipfile(buf, size);
|
|
if (zip == NULL) {
|
|
fprintf(stderr, "inti_zipfile failed\n");
|
|
return 1;
|
|
}
|
|
|
|
fclose(f);
|
|
|
|
|
|
switch (what)
|
|
{
|
|
case LIST:
|
|
dump_zipfile(stdout, zip);
|
|
break;
|
|
case UNZIP:
|
|
entry = lookup_zipentry(zip, argv[3]);
|
|
if (entry == NULL) {
|
|
fprintf(stderr, "zip file '%s' does not contain file '%s'\n",
|
|
argv[1], argv[1]);
|
|
return 1;
|
|
}
|
|
f = fopen(argv[4], "w");
|
|
if (f == NULL) {
|
|
fprintf(stderr, "can't open file for writing '%s'\n", argv[4]);
|
|
return 1;
|
|
}
|
|
unsize = get_zipentry_size(entry);
|
|
size = unsize * 1.001;
|
|
scratch = malloc(size);
|
|
printf("scratch=%p\n", scratch);
|
|
err = decompress_zipentry(entry, scratch, size);
|
|
if (err != 0) {
|
|
fprintf(stderr, "error decompressing file\n");
|
|
return 1;
|
|
}
|
|
fwrite(scratch, unsize, 1, f);
|
|
free(scratch);
|
|
fclose(f);
|
|
break;
|
|
}
|
|
|
|
free(buf);
|
|
|
|
return 0;
|
|
}
|
|
|