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/** @file
* Utilities to convert strings to integers
*
* Copyright 2016, Dario Lombardo
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef _WS_STRTOI_H
#define _WS_STRTOI_H
#include <stdbool.h>
#include <inttypes.h>
#include "ws_symbol_export.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* \brief Convert a decimal string to a signed/unsigned int, with error checks.
* \param str The string to convert
* \param endptr A pointer that will store a pointer to the first invalid
* character in str, allowing a number to be parsed even if there is trailing
* whitespace. If NULL, then the string is assumed to contain only valid
* characters (or it will error out).
* \param cint The converted integer
* \return true if the conversion succeeds, false otherwise.
* On error, errno is set to EINVAL for unrecognized input and ERANGE
* if the resulting number does not fit in the type.
*/
WS_DLL_PUBLIC bool ws_strtoi64(const char* str, const char** endptr, int64_t* cint);
WS_DLL_PUBLIC bool ws_strtoi32(const char* str, const char** endptr, int32_t* cint);
WS_DLL_PUBLIC bool ws_strtoi16(const char* str, const char** endptr, int16_t* cint);
WS_DLL_PUBLIC bool ws_strtoi8 (const char* str, const char** endptr, int8_t* cint);
WS_DLL_PUBLIC bool ws_strtoi (const char* str, const char** endptr, int* cint);
WS_DLL_PUBLIC bool ws_strtou64(const char* str, const char** endptr, uint64_t* cint);
WS_DLL_PUBLIC bool ws_strtou32(const char* str, const char** endptr, uint32_t* cint);
WS_DLL_PUBLIC bool ws_strtou16(const char* str, const char** endptr, uint16_t* cint);
WS_DLL_PUBLIC bool ws_strtou8 (const char* str, const char** endptr, uint8_t* cint);
WS_DLL_PUBLIC bool ws_strtou (const char* str, const char** endptr, unsigned* cint);
/*
* \brief Convert a hexadecimal string to an unsigned int, with error checks.
* \param str The string to convert
* \param endptr A pointer that will store a pointer to the first invalid
* character in str, allowing a number to be parsed even if there is trailing
* whitespace. If NULL, then the string is assumed to contain only valid
* characters (or it will error out).
* \param cint The converted integer
* \return true if the conversion succeeds, false otherwise.
* On error, errno is set to EINVAL for unrecognized input and ERANGE
* if the resulting number does not fit in the type.
*/
WS_DLL_PUBLIC bool ws_hexstrtou64(const char* str, const char** endptr, uint64_t* cint);
WS_DLL_PUBLIC bool ws_hexstrtou32(const char* str, const char** endptr, uint32_t* cint);
WS_DLL_PUBLIC bool ws_hexstrtou16(const char* str, const char** endptr, uint16_t* cint);
WS_DLL_PUBLIC bool ws_hexstrtou8 (const char* str, const char** endptr, uint8_t* cint);
WS_DLL_PUBLIC bool ws_hexstrtou (const char* str, const char** endptr, unsigned* cint);
/*
* \brief Convert a string in the specified base to an unsigned int, with
* error checks.
* \param str The string to convert
* \param endptr A pointer that will store a pointer to the first invalid
* character in str, allowing a number to be parsed even if there is trailing
* whitespace. If NULL, then the string is assumed to contain only valid
* characters (or it will error out).
* \param cint The converted integer
* \param base The base for the integer; 0 means "if it begins with 0x,
* it's hex, otherwise if it begins with 0, it's octal, otherwise it's
* decimal".
* \return true if the conversion succeeds, false otherwise.
* On error, errno is set to EINVAL for unrecognized input and ERANGE
* if the resulting number does not fit in the type.
*/
WS_DLL_PUBLIC bool ws_basestrtou64(const char* str, const char** endptr, uint64_t* cint, int base);
WS_DLL_PUBLIC bool ws_basestrtou32(const char* str, const char** endptr, uint32_t* cint, int base);
WS_DLL_PUBLIC bool ws_basestrtou16(const char* str, const char** endptr, uint16_t* cint, int base);
WS_DLL_PUBLIC bool ws_basestrtou8 (const char* str, const char** endptr, uint8_t* cint, int base);
WS_DLL_PUBLIC bool ws_basestrtou (const char* str, const char** endptr, unsigned* cint, int base);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=4 tabstop=8 noexpandtab:
* :indentSize=4:tabSize=8:noTabs=false:
*/
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