40 lines
2.5 KiB
C
40 lines
2.5 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "ape/relocations.h"
|
|
#include "libc/assert.h"
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/zip.h"
|
|
#include "libc/zipos/zipos.internal.h"
|
|
|
|
ssize_t __zipos_find(struct Zipos *zipos, const struct ZiposUri *name) {
|
|
size_t i, cf;
|
|
assert(ZIP_CDIR_MAGIC(zipos->cdir) == kZipCdirHdrMagic);
|
|
for (i = 0, cf = ZIP_CDIR_OFFSET(zipos->cdir);
|
|
i < ZIP_CDIR_RECORDS(zipos->cdir);
|
|
++i, cf += ZIP_CFILE_HDRSIZE(zipos->map + cf)) {
|
|
assert(ZIP_CFILE_MAGIC(zipos->map + cf) == kZipCfileHdrMagic);
|
|
if (name->len == ZIP_CFILE_NAMESIZE(zipos->map + cf) &&
|
|
memcmp(name->path, ZIP_CFILE_NAME(zipos->map + cf), name->len) == 0) {
|
|
return cf;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|