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Diffstat (limited to 'include/lha_internal.h')
| -rw-r--r-- | include/lha_internal.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/include/lha_internal.h b/include/lha_internal.h new file mode 100644 index 0000000..bae10a0 --- /dev/null +++ b/include/lha_internal.h @@ -0,0 +1,182 @@ +/* + * 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 */ |