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/*
* Copyright (C) 2001 Alan Robertson <alanr@unix.sh>
* This software licensed under the GNU LGPL.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
*/
#ifndef LHA_INTERNAL_H
# define LHA_INTERNAL_H
#define EOS '\0'
#define DIMOF(a) ((int) (sizeof(a)/sizeof(a[0])) )
#define STRLEN_CONST(conststr) ((size_t)((sizeof(conststr)/sizeof(char))-1))
#define STRNCMP_CONST(varstr, conststr) strncmp((varstr), conststr, STRLEN_CONST(conststr)+1)
#define STRLEN(c) STRLEN_CONST(c)
#define MALLOCT(t) ((t *) malloc(sizeof(t)))
#define HADEBUGVAL "HA_DEBUG" /* current debug value (if nonzero) */
#define HALOGD "HA_LOGD" /* whether we use logging daemon or not */
/* Needs to be defined before any other includes, otherwise some system
* headers do not behave as expected! Major black magic... */
#undef _GNU_SOURCE /* in case it was defined on the command line */
#define _GNU_SOURCE
/* Please leave this as the first #include - Solaris needs it there */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/param.h>
#ifdef BSD
# define SCANSEL_CAST (void *)
#else
# define SCANSEL_CAST /* Nothing */
#endif
#if defined(ANSI_ONLY) && !defined(inline)
# define inline /* nothing */
# undef NETSNMP_ENABLE_INLINE
# define NETSNMP_NO_INLINE 1
#endif
#ifndef HAVE_DAEMON
/* We supply a replacement function, but need a prototype */
int daemon(int nochdir, int noclose);
#endif /* HAVE_DAEMON */
#ifndef HAVE_SETENV
/* We supply a replacement function, but need a prototype */
int setenv(const char *name, const char * value, int why);
#endif /* HAVE_SETENV */
#ifndef HAVE_UNSETENV
/* We supply a replacement function, but need a prototype */
int unsetenv(const char *name);
#endif /* HAVE_UNSETENV */
#ifndef HAVE_STRERROR
/* We supply a replacement function, but need a prototype */
char * strerror(int errnum);
#endif /* HAVE_STRERROR */
#ifndef HAVE_SCANDIR
/* We supply a replacement function, but need a prototype */
# include <dirent.h>
int
scandir (const char *directory_name,
struct dirent ***array_pointer,
int (*select_function) (const struct dirent *),
#ifdef USE_SCANDIR_COMPARE_STRUCT_DIRENT
/* This is what the Linux man page says */
int (*compare_function) (const struct dirent**, const struct dirent**)
#else
/* This is what the Linux header file says ... */
int (*compare_function) (const void *, const void *)
#endif
);
#endif /* HAVE_SCANDIR */
#ifndef HAVE_ALPHASORT
# include <dirent.h>
int
alphasort(const void *dirent1, const void *dirent2);
#endif /* HAVE_ALPHASORT */
#ifndef HAVE_INET_PTON
/* We supply a replacement function, but need a prototype */
int
inet_pton(int af, const char *src, void *dst);
#endif /* HAVE_INET_PTON */
#ifndef HAVE_STRNLEN
size_t strnlen(const char *s, size_t maxlen);
#else
# define USE_GNU
#endif
#ifndef HAVE_STRNDUP
char *strndup(const char *str, size_t len);
#else
# define USE_GNU
#endif
#ifndef HAVE_STRLCPY
size_t strlcpy(char * dest, const char *source, size_t len);
#endif
#ifndef HAVE_STRLCAT
size_t strlcat(char * dest, const char *source, size_t len);
#endif
#ifndef HAVE_NFDS_T
typedef unsigned int nfds_t;
#endif
#ifdef HAVE_STRUCT_UCRED_DARWIN
# include <sys/utsname.h>
# ifndef SYS_NMLN
# define SYS_NMLN _SYS_NAMELEN
# endif /* SYS_NMLN */
#endif
#define POINTER_TO_SIZE_T(p) ((size_t)(p)) /*pointer cast as size_t*/
#define POINTER_TO_SSIZE_T(p) ((ssize_t)(p)) /*pointer cast as ssize_t*/
#define POINTER_TO_ULONG(p) ((unsigned long)(p)) /*pointer cast as unsigned long*/
/* Sometimes we get a const g_something *, but need to pass it internally
* to other functions taking a non-const g_something *, which results
* with gcc and -Wcast-qual in a compile time warning, and with -Werror
* even to a compile time error.
* Workarounds have been to e.g. memcpy(&list, _list); or similar,
* the reason of which is non-obvious to the casual reader.
* This macro achieves the same, and annotates why it is done.
*/
#define UNCONST_CAST_POINTER(t, p) ((t)(unsigned long)(p))
#define HAURL(url) HA_URLBASE url
/*
* Some compilers may not have defined __FUNCTION__.
*/
#ifndef __FUNCTION__
/* Sun studio compiler */
# ifdef __SUNPRO_C
# define __FUNCTION__ __func__
# endif
/* Similarly add your compiler here ... */
#endif
/* You may need to change this for your compiler */
#ifdef HAVE_STRINGIZE
# define ASSERT(X) {if(!(X)) ha_assert(#X, __LINE__, __FILE__);}
#else
# define ASSERT(X) {if(!(X)) ha_assert("X", __LINE__, __FILE__);}
#endif
/* shamelessly stolen from linux kernel */
/* Force a compilation error if condition is true */
#define BUILD_BUG_ON(condition) ((void)BUILD_BUG_ON_ZERO(condition))
/* Force a compilation error if condition is true, but also produce a
* result (of value 0 and type size_t), so the expression can be used
* e.g. in a structure initializer (or where-ever else comma expressions
* aren't permitted). */
#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
#endif /* LHA_INTERNAL_H */
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