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Update Libzip to latest 1.9.2 (#1071)

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* Libzip 1.9.2

Updated Libzip to latest version 1.9.2 and changed version number in the config.h from 1.7.3 to 1.9.2. Not sure if anything else needs to be tweaked :)

* Modified Libzip to work with Visual studio

* Update README.md

Update libzip copyright.

* Added the missing files.

I've added the missing files zipconf.h and config.h, I've missed those sorry for that!
This commit is contained in:
DLL125
2023-05-25 12:52:53 +02:00
committed by GitHub
parent b872702309
commit 1fc4168b81
145 changed files with 8187 additions and 3942 deletions
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422
src/Common/libzip/zip_source_buffer.c
View File

@@ -1,9 +1,9 @@
/*
zip_source_buffer.c -- create zip data source from buffer
Copyright (C) 1999-2019 Dieter Baron and Thomas Klausner
Copyright (C) 1999-2022 Dieter Baron and Thomas Klausner
This file is part of libzip, a library to manipulate ZIP archives.
The authors can be contacted at <libzip@nih.at>
The authors can be contacted at <info@libzip.org>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@@ -87,7 +87,7 @@ zip_source_t *zip_source_buffer_fragment_with_attributes_create(const zip_buffer
ZIP_EXTERN zip_source_t *
zip_source_buffer(zip_t *za, const void *data, zip_uint64_t len, int freep) {
if (za == NULL)
return NULL;
return NULL;
return zip_source_buffer_with_attributes_create(data, len, freep, NULL, &za->error);
}
@@ -104,12 +104,12 @@ zip_source_buffer_with_attributes_create(const void *data, zip_uint64_t len, int
zip_buffer_fragment_t fragment;
if (data == NULL) {
if (len > 0) {
zip_error_set(error, ZIP_ER_INVAL, 0);
return NULL;
}
if (len > 0) {
zip_error_set(error, ZIP_ER_INVAL, 0);
return NULL;
}
return zip_source_buffer_fragment_with_attributes_create(NULL, 0, freep, attributes, error);
return zip_source_buffer_fragment_with_attributes_create(NULL, 0, freep, attributes, error);
}
fragment.data = (zip_uint8_t *)data;
@@ -122,7 +122,7 @@ zip_source_buffer_with_attributes_create(const void *data, zip_uint64_t len, int
ZIP_EXTERN zip_source_t *
zip_source_buffer_fragment(zip_t *za, const zip_buffer_fragment_t *fragments, zip_uint64_t nfragments, int freep) {
if (za == NULL) {
return NULL;
return NULL;
}
return zip_source_buffer_fragment_with_attributes_create(fragments, nfragments, freep, NULL, &za->error);
@@ -141,35 +141,35 @@ zip_source_buffer_fragment_with_attributes_create(const zip_buffer_fragment_t *f
buffer_t *buffer;
if (fragments == NULL && nfragments > 0) {
zip_error_set(error, ZIP_ER_INVAL, 0);
return NULL;
zip_error_set(error, ZIP_ER_INVAL, 0);
return NULL;
}
if ((buffer = buffer_new(fragments, nfragments, freep, error)) == NULL) {
return NULL;
return NULL;
}
if ((ctx = (struct read_data *)malloc(sizeof(*ctx))) == NULL) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
buffer_free(buffer);
return NULL;
zip_error_set(error, ZIP_ER_MEMORY, 0);
buffer_free(buffer);
return NULL;
}
ctx->in = buffer;
ctx->out = NULL;
ctx->mtime = time(NULL);
if (attributes) {
memcpy(&ctx->attributes, attributes, sizeof(ctx->attributes));
memcpy(&ctx->attributes, attributes, sizeof(ctx->attributes));
}
else {
zip_file_attributes_init(&ctx->attributes);
zip_file_attributes_init(&ctx->attributes);
}
zip_error_init(&ctx->error);
if ((zs = zip_source_function_create(read_data, ctx, error)) == NULL) {
buffer_free(ctx->in);
free(ctx);
return NULL;
buffer_free(ctx->in);
free(ctx);
return NULL;
}
return zs;
@@ -187,133 +187,133 @@ read_data(void *state, void *data, zip_uint64_t len, zip_source_cmd_t cmd) {
switch (cmd) {
case ZIP_SOURCE_BEGIN_WRITE:
if ((ctx->out = buffer_new(NULL, 0, 0, &ctx->error)) == NULL) {
return -1;
}
ctx->out->offset = 0;
ctx->out->current_fragment = 0;
return 0;
if ((ctx->out = buffer_new(NULL, 0, 0, &ctx->error)) == NULL) {
return -1;
}
ctx->out->offset = 0;
ctx->out->current_fragment = 0;
return 0;
case ZIP_SOURCE_BEGIN_WRITE_CLONING:
if ((ctx->out = buffer_clone(ctx->in, len, &ctx->error)) == NULL) {
return -1;
}
ctx->out->offset = len;
ctx->out->current_fragment = ctx->out->nfragments;
return 0;
if ((ctx->out = buffer_clone(ctx->in, len, &ctx->error)) == NULL) {
return -1;
}
ctx->out->offset = len;
ctx->out->current_fragment = ctx->out->nfragments;
return 0;
case ZIP_SOURCE_CLOSE:
return 0;
return 0;
case ZIP_SOURCE_COMMIT_WRITE:
buffer_free(ctx->in);
ctx->in = ctx->out;
ctx->out = NULL;
return 0;
buffer_free(ctx->in);
ctx->in = ctx->out;
ctx->out = NULL;
return 0;
case ZIP_SOURCE_ERROR:
return zip_error_to_data(&ctx->error, data, len);
return zip_error_to_data(&ctx->error, data, len);
case ZIP_SOURCE_FREE:
buffer_free(ctx->in);
buffer_free(ctx->out);
free(ctx);
return 0;
buffer_free(ctx->in);
buffer_free(ctx->out);
free(ctx);
return 0;
case ZIP_SOURCE_GET_FILE_ATTRIBUTES: {
if (len < sizeof(ctx->attributes)) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
if (len < sizeof(ctx->attributes)) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
memcpy(data, &ctx->attributes, sizeof(ctx->attributes));
memcpy(data, &ctx->attributes, sizeof(ctx->attributes));
return sizeof(ctx->attributes);
return sizeof(ctx->attributes);
}
case ZIP_SOURCE_OPEN:
ctx->in->offset = 0;
ctx->in->current_fragment = 0;
return 0;
ctx->in->offset = 0;
ctx->in->current_fragment = 0;
return 0;
case ZIP_SOURCE_READ:
if (len > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
return buffer_read(ctx->in, data, len);
if (len > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
return buffer_read(ctx->in, data, len);
case ZIP_SOURCE_REMOVE: {
buffer_t *empty = buffer_new(NULL, 0, 0, &ctx->error);
if (empty == NULL) {
return -1;
}
buffer_t *empty = buffer_new(NULL, 0, 0, &ctx->error);
if (empty == NULL) {
return -1;
}
buffer_free(ctx->in);
ctx->in = empty;
return 0;
buffer_free(ctx->in);
ctx->in = empty;
return 0;
}
case ZIP_SOURCE_ROLLBACK_WRITE:
buffer_free(ctx->out);
ctx->out = NULL;
return 0;
buffer_free(ctx->out);
ctx->out = NULL;
return 0;
case ZIP_SOURCE_SEEK:
return buffer_seek(ctx->in, data, len, &ctx->error);
return buffer_seek(ctx->in, data, len, &ctx->error);
case ZIP_SOURCE_SEEK_WRITE:
return buffer_seek(ctx->out, data, len, &ctx->error);
return buffer_seek(ctx->out, data, len, &ctx->error);
case ZIP_SOURCE_STAT: {
zip_stat_t *st;
zip_stat_t *st;
if (len < sizeof(*st)) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
if (len < sizeof(*st)) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
st = (zip_stat_t *)data;
st = (zip_stat_t *)data;
zip_stat_init(st);
st->mtime = ctx->mtime;
st->size = ctx->in->size;
st->comp_size = st->size;
st->comp_method = ZIP_CM_STORE;
st->encryption_method = ZIP_EM_NONE;
st->valid = ZIP_STAT_MTIME | ZIP_STAT_SIZE | ZIP_STAT_COMP_SIZE | ZIP_STAT_COMP_METHOD | ZIP_STAT_ENCRYPTION_METHOD;
zip_stat_init(st);
st->mtime = ctx->mtime;
st->size = ctx->in->size;
st->comp_size = st->size;
st->comp_method = ZIP_CM_STORE;
st->encryption_method = ZIP_EM_NONE;
st->valid = ZIP_STAT_MTIME | ZIP_STAT_SIZE | ZIP_STAT_COMP_SIZE | ZIP_STAT_COMP_METHOD | ZIP_STAT_ENCRYPTION_METHOD;
return sizeof(*st);
return sizeof(*st);
}
case ZIP_SOURCE_SUPPORTS:
return zip_source_make_command_bitmap(ZIP_SOURCE_GET_FILE_ATTRIBUTES, ZIP_SOURCE_OPEN, ZIP_SOURCE_READ, ZIP_SOURCE_CLOSE, ZIP_SOURCE_STAT, ZIP_SOURCE_ERROR, ZIP_SOURCE_FREE, ZIP_SOURCE_SEEK, ZIP_SOURCE_TELL, ZIP_SOURCE_BEGIN_WRITE, ZIP_SOURCE_BEGIN_WRITE_CLONING, ZIP_SOURCE_COMMIT_WRITE, ZIP_SOURCE_REMOVE, ZIP_SOURCE_ROLLBACK_WRITE, ZIP_SOURCE_SEEK_WRITE, ZIP_SOURCE_TELL_WRITE, ZIP_SOURCE_WRITE, -1);
return zip_source_make_command_bitmap(ZIP_SOURCE_GET_FILE_ATTRIBUTES, ZIP_SOURCE_OPEN, ZIP_SOURCE_READ, ZIP_SOURCE_CLOSE, ZIP_SOURCE_STAT, ZIP_SOURCE_ERROR, ZIP_SOURCE_FREE, ZIP_SOURCE_SEEK, ZIP_SOURCE_TELL, ZIP_SOURCE_BEGIN_WRITE, ZIP_SOURCE_BEGIN_WRITE_CLONING, ZIP_SOURCE_COMMIT_WRITE, ZIP_SOURCE_REMOVE, ZIP_SOURCE_ROLLBACK_WRITE, ZIP_SOURCE_SEEK_WRITE, ZIP_SOURCE_TELL_WRITE, ZIP_SOURCE_WRITE, -1);
case ZIP_SOURCE_TELL:
if (ctx->in->offset > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_TELL, EOVERFLOW);
return -1;
}
return (zip_int64_t)ctx->in->offset;
if (ctx->in->offset > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_TELL, EOVERFLOW);
return -1;
}
return (zip_int64_t)ctx->in->offset;
case ZIP_SOURCE_TELL_WRITE:
if (ctx->out->offset > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_TELL, EOVERFLOW);
return -1;
}
return (zip_int64_t)ctx->out->offset;
if (ctx->out->offset > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_TELL, EOVERFLOW);
return -1;
}
return (zip_int64_t)ctx->out->offset;
case ZIP_SOURCE_WRITE:
if (len > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
return buffer_write(ctx->out, data, len, &ctx->error);
if (len > ZIP_INT64_MAX) {
zip_error_set(&ctx->error, ZIP_ER_INVAL, 0);
return -1;
}
return buffer_write(ctx->out, data, len, &ctx->error);
default:
zip_error_set(&ctx->error, ZIP_ER_OPNOTSUPP, 0);
return -1;
zip_error_set(&ctx->error, ZIP_ER_OPNOTSUPP, 0);
return -1;
}
}
@@ -324,34 +324,34 @@ buffer_clone(buffer_t *buffer, zip_uint64_t offset, zip_error_t *error) {
buffer_t *clone;
if (offset == 0) {
return buffer_new(NULL, 0, 1, error);
return buffer_new(NULL, 0, 1, error);
}
if (offset > buffer->size) {
zip_error_set(error, ZIP_ER_INVAL, 0);
return NULL;
zip_error_set(error, ZIP_ER_INVAL, 0);
return NULL;
}
if (buffer->shared_buffer != NULL) {
zip_error_set(error, ZIP_ER_INUSE, 0);
return NULL;
zip_error_set(error, ZIP_ER_INUSE, 0);
return NULL;
}
fragment = buffer_find_fragment(buffer, offset);
fragment_offset = offset - buffer->fragment_offsets[fragment];
if (fragment_offset == 0) {
fragment--;
fragment_offset = buffer->fragments[fragment].length;
fragment--;
fragment_offset = buffer->fragments[fragment].length;
}
waste = buffer->fragments[fragment].length - fragment_offset;
if (waste > offset) {
zip_error_set(error, ZIP_ER_OPNOTSUPP, 0);
return NULL;
zip_error_set(error, ZIP_ER_OPNOTSUPP, 0);
return NULL;
}
if ((clone = buffer_new(buffer->fragments, fragment + 1, 0, error)) == NULL) {
return NULL;
return NULL;
}
#ifndef __clang_analyzer__
@@ -361,13 +361,13 @@ buffer_clone(buffer_t *buffer, zip_uint64_t offset, zip_error_t *error) {
clone->fragment_offsets[clone->nfragments] = offset;
clone->size = offset;
clone->first_owned_fragment = ZIP_MIN(buffer->first_owned_fragment, clone->nfragments - 1);
clone->first_owned_fragment = ZIP_MIN(buffer->first_owned_fragment, clone->nfragments);
buffer->shared_buffer = clone;
clone->shared_buffer = buffer;
buffer->shared_fragments = clone->nfragments;
clone->shared_fragments = fragment + 1;
return clone;
}
@@ -376,20 +376,24 @@ static zip_uint64_t
buffer_find_fragment(const buffer_t *buffer, zip_uint64_t offset) {
zip_uint64_t low, high, mid;
if (buffer->nfragments == 0) {
return 0;
}
low = 0;
high = buffer->nfragments - 1;
while (low < high) {
mid = (high - low) / 2 + low;
if (buffer->fragment_offsets[mid] > offset) {
high = mid - 1;
}
else if (mid == buffer->nfragments || buffer->fragment_offsets[mid + 1] > offset) {
return mid;
}
else {
low = mid + 1;
}
mid = (high - low) / 2 + low;
if (buffer->fragment_offsets[mid] > offset) {
high = mid - 1;
}
else if (mid == buffer->nfragments || buffer->fragment_offsets[mid + 1] > offset) {
return mid;
}
else {
low = mid + 1;
}
}
return low;
@@ -401,18 +405,18 @@ buffer_free(buffer_t *buffer) {
zip_uint64_t i;
if (buffer == NULL) {
return;
return;
}
if (buffer->shared_buffer != NULL) {
buffer->shared_buffer->shared_buffer = NULL;
buffer->shared_buffer->shared_fragments = 0;
buffer->shared_buffer->shared_buffer = NULL;
buffer->shared_buffer->shared_fragments = 0;
buffer->first_owned_fragment = ZIP_MAX(buffer->first_owned_fragment, buffer->shared_fragments);
buffer->first_owned_fragment = ZIP_MAX(buffer->first_owned_fragment, buffer->shared_fragments);
}
for (i = buffer->first_owned_fragment; i < buffer->nfragments; i++) {
free(buffer->fragments[i].data);
free(buffer->fragments[i].data);
}
free(buffer->fragments);
free(buffer->fragment_offsets);
@@ -426,17 +430,17 @@ buffer_grow_fragments(buffer_t *buffer, zip_uint64_t capacity, zip_error_t *erro
zip_uint64_t *offsets;
if (capacity < buffer->fragments_capacity) {
return true;
return true;
}
if ((fragments = realloc(buffer->fragments, sizeof(buffer->fragments[0]) * capacity)) == NULL) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
return false;
zip_error_set(error, ZIP_ER_MEMORY, 0);
return false;
}
buffer->fragments = fragments;
if ((offsets = realloc(buffer->fragment_offsets, sizeof(buffer->fragment_offsets[0]) * (capacity + 1))) == NULL) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
return false;
zip_error_set(error, ZIP_ER_MEMORY, 0);
return false;
}
buffer->fragment_offsets = offsets;
buffer->fragments_capacity = capacity;
@@ -450,7 +454,7 @@ buffer_new(const zip_buffer_fragment_t *fragments, zip_uint64_t nfragments, int
buffer_t *buffer;
if ((buffer = malloc(sizeof(*buffer))) == NULL) {
return NULL;
return NULL;
}
buffer->offset = 0;
@@ -464,42 +468,42 @@ buffer_new(const zip_buffer_fragment_t *fragments, zip_uint64_t nfragments, int
buffer->shared_fragments = 0;
if (nfragments == 0) {
if ((buffer->fragment_offsets = malloc(sizeof(buffer->fragment_offsets[0]))) == NULL) {
free(buffer);
zip_error_set(error, ZIP_ER_MEMORY, 0);
return NULL;
}
buffer->fragment_offsets[0] = 0;
if ((buffer->fragment_offsets = malloc(sizeof(buffer->fragment_offsets[0]))) == NULL) {
free(buffer);
zip_error_set(error, ZIP_ER_MEMORY, 0);
return NULL;
}
buffer->fragment_offsets[0] = 0;
}
else {
zip_uint64_t i, j, offset;
zip_uint64_t i, j, offset;
if (!buffer_grow_fragments(buffer, nfragments, NULL)) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
buffer_free(buffer);
return NULL;
}
if (!buffer_grow_fragments(buffer, nfragments, NULL)) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
buffer_free(buffer);
return NULL;
}
offset = 0;
for (i = 0, j = 0; i < nfragments; i++) {
if (fragments[i].length == 0) {
continue;
}
if (fragments[i].data == NULL) {
zip_error_set(error, ZIP_ER_INVAL, 0);
buffer_free(buffer);
return NULL;
}
buffer->fragments[j].data = fragments[i].data;
buffer->fragments[j].length = fragments[i].length;
buffer->fragment_offsets[i] = offset;
offset += fragments[i].length;
j++;
}
buffer->nfragments = j;
buffer->first_owned_fragment = free_data ? 0 : buffer->nfragments;
buffer->fragment_offsets[buffer->nfragments] = offset;
buffer->size = offset;
offset = 0;
for (i = 0, j = 0; i < nfragments; i++) {
if (fragments[i].length == 0) {
continue;
}
if (fragments[i].data == NULL) {
zip_error_set(error, ZIP_ER_INVAL, 0);
buffer_free(buffer);
return NULL;
}
buffer->fragments[j].data = fragments[i].data;
buffer->fragments[j].length = fragments[i].length;
buffer->fragment_offsets[i] = offset;
offset += fragments[i].length;
j++;
}
buffer->nfragments = j;
buffer->first_owned_fragment = free_data ? 0 : buffer->nfragments;
buffer->fragment_offsets[buffer->nfragments] = offset;
buffer->size = offset;
}
return buffer;
@@ -512,25 +516,25 @@ buffer_read(buffer_t *buffer, zip_uint8_t *data, zip_uint64_t length) {
length = ZIP_MIN(length, buffer->size - buffer->offset);
if (length == 0) {
return 0;
return 0;
}
if (length > ZIP_INT64_MAX) {
return -1;
return -1;
}
i = buffer->current_fragment;
fragment_offset = buffer->offset - buffer->fragment_offsets[i];
n = 0;
while (n < length) {
zip_uint64_t left = ZIP_MIN(length - n, buffer->fragments[i].length - fragment_offset);
zip_uint64_t left = ZIP_MIN(length - n, buffer->fragments[i].length - fragment_offset);
memcpy(data + n, buffer->fragments[i].data + fragment_offset, left);
memcpy(data + n, buffer->fragments[i].data + fragment_offset, left);
if (left == buffer->fragments[i].length - fragment_offset) {
i++;
}
n += left;
fragment_offset = 0;
if (left == buffer->fragments[i].length - fragment_offset) {
i++;
}
n += left;
fragment_offset = 0;
}
buffer->offset += n;
@@ -544,7 +548,7 @@ buffer_seek(buffer_t *buffer, void *data, zip_uint64_t len, zip_error_t *error)
zip_int64_t new_offset = zip_source_seek_compute_offset(buffer->offset, buffer->size, data, len, error);
if (new_offset < 0) {
return -1;
return -1;
}
buffer->offset = (zip_uint64_t)new_offset;
@@ -558,62 +562,62 @@ buffer_write(buffer_t *buffer, const zip_uint8_t *data, zip_uint64_t length, zip
zip_uint64_t n, i, fragment_offset, capacity;
if (buffer->offset + length + WRITE_FRAGMENT_SIZE - 1 < length) {
zip_error_set(error, ZIP_ER_INVAL, 0);
return -1;
zip_error_set(error, ZIP_ER_INVAL, 0);
return -1;
}
/* grow buffer if needed */
capacity = buffer_capacity(buffer);
if (buffer->offset + length > capacity) {
zip_uint64_t needed_fragments = buffer->nfragments + (length - (capacity - buffer->offset) + WRITE_FRAGMENT_SIZE - 1) / WRITE_FRAGMENT_SIZE;
zip_uint64_t needed_fragments = buffer->nfragments + (length - (capacity - buffer->offset) + WRITE_FRAGMENT_SIZE - 1) / WRITE_FRAGMENT_SIZE;
if (needed_fragments > buffer->fragments_capacity) {
zip_uint64_t new_capacity = buffer->fragments_capacity;
if (needed_fragments > buffer->fragments_capacity) {
zip_uint64_t new_capacity = buffer->fragments_capacity;
if (new_capacity == 0) {
new_capacity = 16;
}
while (new_capacity < needed_fragments) {
new_capacity *= 2;
}
if (new_capacity == 0) {
new_capacity = 16;
}
while (new_capacity < needed_fragments) {
new_capacity *= 2;
}
if (!buffer_grow_fragments(buffer, new_capacity, error)) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
return -1;
}
}
if (!buffer_grow_fragments(buffer, new_capacity, error)) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
return -1;
}
}
while (buffer->nfragments < needed_fragments) {
if ((buffer->fragments[buffer->nfragments].data = malloc(WRITE_FRAGMENT_SIZE)) == NULL) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
return -1;
}
buffer->fragments[buffer->nfragments].length = WRITE_FRAGMENT_SIZE;
buffer->nfragments++;
capacity += WRITE_FRAGMENT_SIZE;
buffer->fragment_offsets[buffer->nfragments] = capacity;
}
while (buffer->nfragments < needed_fragments) {
if ((buffer->fragments[buffer->nfragments].data = malloc(WRITE_FRAGMENT_SIZE)) == NULL) {
zip_error_set(error, ZIP_ER_MEMORY, 0);
return -1;
}
buffer->fragments[buffer->nfragments].length = WRITE_FRAGMENT_SIZE;
buffer->nfragments++;
capacity += WRITE_FRAGMENT_SIZE;
buffer->fragment_offsets[buffer->nfragments] = capacity;
}
}
i = buffer->current_fragment;
fragment_offset = buffer->offset - buffer->fragment_offsets[i];
n = 0;
while (n < length) {
zip_uint64_t left = ZIP_MIN(length - n, buffer->fragments[i].length - fragment_offset);
zip_uint64_t left = ZIP_MIN(length - n, buffer->fragments[i].length - fragment_offset);
memcpy(buffer->fragments[i].data + fragment_offset, data + n, left);
memcpy(buffer->fragments[i].data + fragment_offset, data + n, left);
if (left == buffer->fragments[i].length - fragment_offset) {
i++;
}
n += left;
fragment_offset = 0;
if (left == buffer->fragments[i].length - fragment_offset) {
i++;
}
n += left;
fragment_offset = 0;
}
buffer->offset += n;
buffer->current_fragment = i;
if (buffer->offset > buffer->size) {
buffer->size = buffer->offset;
buffer->size = buffer->offset;
}
return (zip_int64_t)n;