Revision control
++ /*
++ * jinclude.h
++ *
++ * This file was part of the Independent JPEG Group's software:
++ * Copyright (C) 1991-1994, Thomas G. Lane.
++ * libjpeg-turbo Modifications:
++ * Copyright (C) 2022-2023, D. R. Commander.
++ * For conditions of distribution and use, see the accompanying README.ijg
++ * file.
++ *
++ * This file exists to provide a single place to fix any problems with
++ * including the wrong system include files. (Common problems are taken
++ * care of by the standard jconfig symbols, but on really weird systems
++ * you may have to edit this file.)
++ *
++ * NOTE: this file is NOT intended to be included by applications using the
++ * JPEG library. Most applications need only include jpeglib.h.
++ */
++
++ #ifndef __JINCLUDE_H__
++ #define __JINCLUDE_H__
++
++ /* Include auto-config file to find out which system include files we need. */
++
++ #include "jconfig.h" /* auto configuration options */
++ #include "jconfigint.h"
++ #define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */
++
++ /*
++ * Note that the core JPEG library does not require <stdio.h>;
++ * only the default error handler and data source/destination modules do.
++ * But we must pull it in because of the references to FILE in jpeglib.h.
++ * You can remove those references if you want to compile without <stdio.h>.
++ */
++
++ #include <stddef.h>
++ #include <stdlib.h>
++ #include <stdio.h>
++ #include <string.h>
++
++ /*
++ * These macros/inline functions facilitate using Microsoft's "safe string"
++ * functions with Visual Studio builds without the need to scatter #ifdefs
++ * throughout the code base.
++ */
++
++
++ #ifdef _MSC_VER
++
++ #define SNPRINTF(str, n, format, ...) \
++ _snprintf_s(str, n, _TRUNCATE, format, ##__VA_ARGS__)
++
++ #else
++
++ #define SNPRINTF snprintf
++
++ #endif
++
++
++ #ifndef NO_GETENV
++
++ #ifdef _MSC_VER
++
++ static INLINE int GETENV_S(char *buffer, size_t buffer_size, const char *name)
++ {
++ size_t required_size;
++
++ return (int)getenv_s(&required_size, buffer, buffer_size, name);
++ }
++
++ #else /* _MSC_VER */
++
++ #include <errno.h>
++
++ /* This provides a similar interface to the Microsoft/C11 getenv_s() function,
++ * but other than parameter validation, it has no advantages over getenv().
++ */
++
++ static INLINE int GETENV_S(char *buffer, size_t buffer_size, const char *name)
++ {
++ char *env;
++
++ if (!buffer) {
++ if (buffer_size == 0)
++ return 0;
++ else
++ return (errno = EINVAL);
++ }
++ if (buffer_size == 0)
++ return (errno = EINVAL);
++ if (!name) {
++ *buffer = 0;
++ return 0;
++ }
++
++ env = getenv(name);
++ if (!env)
++ {
++ *buffer = 0;
++ return 0;
++ }
++
++ if (strlen(env) + 1 > buffer_size) {
++ *buffer = 0;
++ return ERANGE;
++ }
++
++ strncpy(buffer, env, buffer_size);
++
++ return 0;
++ }
++
++ #endif /* _MSC_VER */
++
++ #endif /* NO_GETENV */
++
++
++ #ifndef NO_PUTENV
++
++ #ifdef _WIN32
++
++ #define PUTENV_S(name, value) _putenv_s(name, value)
++
++ #else
++
++ #include <errno.h>
++
++ /* This provides a similar interface to the Microsoft _putenv_s() function, but
++ * other than parameter validation, it has no advantages over setenv().
++ */
++
++ static INLINE int PUTENV_S(const char *name, const char *value)
++ {
++ if (!name || !value)
++ return (errno = EINVAL);
++
++ setenv(name, value, 1);
++
++ return errno;
++ }
++
++ #endif /* _WIN32 */
++
++ #endif /* NO_PUTENV */
++
++
++ #endif /* JINCLUDE_H */