zip_source_read.c File Reference

#include "zipint.h"

Go to the source code of this file.

Functions
zip_int64_t	zip_source_read (zip_source_t *src, void *data, zip_uint64_t len)
bool	_zip_source_eof (zip_source_t *src)

Function Documentation

_zip_source_eof()

bool _zip_source_eof

(

zip_source_t *

src

)

Definition at line 94 of file zip_source_read.c.

                                   {
    return src->eof;
}

References src.

Referenced by zip_source_read().

zip_source_read()

zip_int64_t zip_source_read	(	zip_source_t *	src,
		void *	data,
		zip_uint64_t	len
	)

Definition at line 39 of file zip_source_read.c.

                                                                 {
    zip_uint64_t bytes_read;
    zip_int64_t n;
 
    if (src->source_closed) {
        return -1;
    }
    if (!ZIP_SOURCE_IS_OPEN_READING(src) || len > ZIP_INT64_MAX || (len > 0 && data == NULL)) {
        zip_error_set(&src->error, ZIP_ER_INVAL, 0);
        return -1;
    }
 
    if (src->had_read_error) {
        return -1;
    }
 
    if (_zip_source_eof(src)) {
        return 0;
    }
 
    if (len == 0) {
        return 0;
    }
 
    bytes_read = 0;
    while (bytes_read < len) {
        if ((n = _zip_source_call(src, (zip_uint8_t *)data + bytes_read, len - bytes_read, ZIP_SOURCE_READ)) < 0) {
            src->had_read_error = true;
            if (bytes_read == 0) {
                return -1;
            }
            else {
                return (zip_int64_t)bytes_read;
            }
        }
 
        if (n == 0) {
            src->eof = 1;
            break;
        }
 
        bytes_read += (zip_uint64_t)n;
    }
 
    if (src->bytes_read + bytes_read < src->bytes_read) {
        src->bytes_read = ZIP_UINT64_MAX;
    }
    else {
        src->bytes_read += bytes_read;
    }
    return (zip_int64_t)bytes_read;
}

References _zip_source_call(), _zip_source_eof(), len, n, NULL, src, ZIP_ER_INVAL, zip_error_set(), ZIP_INT64_MAX, ZIP_SOURCE_IS_OPEN_READING, ZIP_SOURCE_READ, and ZIP_UINT64_MAX.

Referenced by _zip_file_get_end(), _zip_read(), compress_read(), copy_source(), crc_read(), decrypt_header(), main(), pkware_decrypt(), pkware_encrypt(), verify_hmac(), window_read(), winzip_aes_decrypt(), winzip_aes_encrypt(), write_memory_src_to_file(), and zip_fread().