diff options
Diffstat (limited to 'src/Common/libzip/zip_io_util.c')
| -rw-r--r-- | src/Common/libzip/zip_io_util.c | 80 |
1 files changed, 46 insertions, 34 deletions
diff --git a/src/Common/libzip/zip_io_util.c b/src/Common/libzip/zip_io_util.c index 53f44377..9fcd10b4 100644 --- a/src/Common/libzip/zip_io_util.c +++ b/src/Common/libzip/zip_io_util.c @@ -1,9 +1,9 @@ /* zip_io_util.c -- I/O helper functions - Copyright (C) 1999-2018 Dieter Baron and Thomas Klausner + Copyright (C) 1999-2021 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 @@ -31,8 +31,10 @@ IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include <limits.h> #include <stdlib.h> #include <string.h> +#include <zlib.h> #include "zipint.h" @@ -41,18 +43,18 @@ _zip_read(zip_source_t *src, zip_uint8_t *b, zip_uint64_t length, zip_error_t *e zip_int64_t n; if (length > ZIP_INT64_MAX) { - zip_error_set(error, ZIP_ER_INTERNAL, 0); - return -1; + zip_error_set(error, ZIP_ER_INTERNAL, 0); + return -1; } if ((n = zip_source_read(src, b, length)) < 0) { - _zip_error_set_from_source(error, src); - return -1; + zip_error_set_from_source(error, src); + return -1; } if (n < (zip_int64_t)length) { - zip_error_set(error, ZIP_ER_EOF, 0); - return -1; + zip_error_set(error, ZIP_ER_EOF, 0); + return -1; } return 0; @@ -64,39 +66,39 @@ _zip_read_data(zip_buffer_t *buffer, zip_source_t *src, size_t length, bool nulp zip_uint8_t *r; if (length == 0 && !nulp) { - return NULL; + return NULL; } r = (zip_uint8_t *)malloc(length + (nulp ? 1 : 0)); if (!r) { - zip_error_set(error, ZIP_ER_MEMORY, 0); - return NULL; + zip_error_set(error, ZIP_ER_MEMORY, 0); + return NULL; } if (buffer) { - zip_uint8_t *data = _zip_buffer_get(buffer, length); - - if (data == NULL) { - zip_error_set(error, ZIP_ER_MEMORY, 0); - free(r); - return NULL; - } - memcpy(r, data, length); + zip_uint8_t *data = _zip_buffer_get(buffer, length); + + if (data == NULL) { + zip_error_set(error, ZIP_ER_MEMORY, 0); + free(r); + return NULL; + } + (void)memcpy_s(r, length, data, length); } else { - if (_zip_read(src, r, length, error) < 0) { - free(r); - return NULL; - } + if (_zip_read(src, r, length, error) < 0) { + free(r); + return NULL; + } } if (nulp) { - zip_uint8_t *o; - /* replace any in-string NUL characters with spaces */ - r[length] = 0; - for (o = r; o < r + length; o++) - if (*o == '\0') - *o = ' '; + zip_uint8_t *o; + /* replace any in-string NUL characters with spaces */ + r[length] = 0; + for (o = r; o < r + length; o++) + if (*o == '\0') + *o = ' '; } return r; @@ -109,7 +111,7 @@ _zip_read_string(zip_buffer_t *buffer, zip_source_t *src, zip_uint16_t len, bool zip_string_t *s; if ((raw = _zip_read_data(buffer, src, len, nulp, error)) == NULL) - return NULL; + return NULL; s = _zip_string_new(raw, len, ZIP_FL_ENC_GUESS, error); free(raw); @@ -122,12 +124,22 @@ _zip_write(zip_t *za, const void *data, zip_uint64_t length) { zip_int64_t n; if ((n = zip_source_write(za->src, data, length)) < 0) { - _zip_error_set_from_source(&za->error, za->src); - return -1; + zip_error_set_from_source(&za->error, za->src); + return -1; } if ((zip_uint64_t)n != length) { - zip_error_set(&za->error, ZIP_ER_WRITE, EINTR); - return -1; + zip_error_set(&za->error, ZIP_ER_WRITE, EINTR); + return -1; + } + + if (za->write_crc != NULL) { + zip_uint64_t position = 0; + while (position < length) { + zip_uint64_t nn = ZIP_MIN(UINT_MAX, length - position); + + *za->write_crc = (zip_uint32_t)crc32(*za->write_crc, (const Bytef *)data + position, (uInt)nn); + position += nn; + } } return 0; |