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Diffstat (limited to 'Utilities/cmcurl/lib/curl_endian.c')
| -rw-r--r-- | Utilities/cmcurl/lib/curl_endian.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/Utilities/cmcurl/lib/curl_endian.c b/Utilities/cmcurl/lib/curl_endian.c new file mode 100644 index 0000000..11c662a --- /dev/null +++ b/Utilities/cmcurl/lib/curl_endian.c @@ -0,0 +1,84 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at https://curl.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + * SPDX-License-Identifier: curl + * + ***************************************************************************/ + +#include "curl_setup.h" + +#include "curl_endian.h" + +/* + * Curl_read16_le() + * + * This function converts a 16-bit integer from the little endian format, as + * used in the incoming package to whatever endian format we're using + * natively. + * + * Parameters: + * + * buf [in] - A pointer to a 2 byte buffer. + * + * Returns the integer. + */ +unsigned short Curl_read16_le(const unsigned char *buf) +{ + return (unsigned short)(((unsigned short)buf[0]) | + ((unsigned short)buf[1] << 8)); +} + +/* + * Curl_read32_le() + * + * This function converts a 32-bit integer from the little endian format, as + * used in the incoming package to whatever endian format we're using + * natively. + * + * Parameters: + * + * buf [in] - A pointer to a 4 byte buffer. + * + * Returns the integer. + */ +unsigned int Curl_read32_le(const unsigned char *buf) +{ + return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) | + ((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24); +} + +/* + * Curl_read16_be() + * + * This function converts a 16-bit integer from the big endian format, as + * used in the incoming package to whatever endian format we're using + * natively. + * + * Parameters: + * + * buf [in] - A pointer to a 2 byte buffer. + * + * Returns the integer. + */ +unsigned short Curl_read16_be(const unsigned char *buf) +{ + return (unsigned short)(((unsigned short)buf[0] << 8) | + ((unsigned short)buf[1])); +} |
