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Track LF offsets

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This commit is contained in:
atxr 2024-02-21 16:15:51 +01:00
parent 50293f18e0
commit 01c55375f9
2 changed files with 18 additions and 2 deletions
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18
libmineziper/src/libmineziper_zip.c
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@ -16,8 +16,20 @@ void get_eocd(char* data, int size, zip* out)
if (strcmp(se, EOCD_SIG) == 0)
{
out->eocd = (EOCD*) se;
out->cdh = (CDH**) malloc(out->eocd->number_of_entries * sizeof(CDH*));
out->lfh = (LFH**) malloc(out->eocd->number_of_entries * sizeof(LFH*));
out->entries = out->eocd->number_of_entries;
out->cdh = (CDH**) malloc(out->entries * sizeof(CDH*));
out->lfh = (LFH**) malloc(out->entries * sizeof(LFH*));
out->lfh_off = malloc(out->entries * sizeof(int));
if (!out->cdh || !out->lfh || !out->lfh_off)
{
printf(
"[ERROR] Failed to allocate CDH/LFH buffer for %d entries\n",
out->entries);
exit(1);
}
break;
}
@ -41,6 +53,8 @@ void get_cdh(char* data, zip* out)
out->cdh[i] = cdh;
out->lfh[i] = (LFH*) (data + cdh->off_lfh);
out->lfh_off[i] = cdh->off_lfh;
cdh = (CDH*) (((char*) cdh) + sizeof(CDH) + cdh->filename_length +
cdh->extraf_length + cdh->file_comment_length);
}