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/* * $LynxId: HTUtils.h,v 1.131 2020/01/21 22:08:40 tom Exp $ * * Utility macros for the W3 code library * MACROS FOR GENERAL USE * * See also: the system dependent file "www_tcp.h", which is included here. */ #ifndef NO_LYNX_TRACE #define DEBUG /* Turns on trace; turn off for smaller binary */ #endif #ifndef HTUTILS_H #define HTUTILS_H #ifdef HAVE_CONFIG_H #include <lynx_cfg.h> /* generated by autoconf 'configure' script */ /* see AC_FUNC_ALLOCA macro */ #ifdef __GNUC__ # define alloca(size) __builtin_alloca(size) #else # ifdef _MSC_VER # include <malloc.h> # ifndef alloca # define alloca(size) _alloca(size) # endif # else # if HAVE_ALLOCA_H # include <alloca.h> # else # ifdef _AIX #pragma alloca # else # ifndef alloca /* predefined by HP cc +Olibcalls */ char *alloca(); # endif # endif # endif # endif #endif #include <sys/types.h> #include <stdio.h> #else /* HAVE_CONFIG_H */ #ifdef DJGPP #include <sys/config.h> /* pseudo-autoconf values for DJGPP libc/headers */ #define HAVE_TRUNCATE 1 #define HAVE_ALLOCA 1 #include <limits.h> #endif /* DJGPP */ #include <sys/types.h> #include <stdio.h> /* Explicit system-configure */ #ifdef VMS #define NO_SIZECHANGE #if defined(VAXC) && !defined(__DECC) #define NO_UNISTD_H /* DEC C has unistd.h, but not VAX C */ #endif #define NO_KEYPAD #define NO_UTMP #undef NO_FILIO_H #define NO_FILIO_H #define NOUSERS #define DISP_PARTIAL /* experimental */ #endif #if defined(VMS) || defined(_WINDOWS) #define HAVE_STDLIB_H 1 #endif /* Accommodate non-autoconf'd Makefile's (VMS, DJGPP, etc) */ #ifndef NO_ARPA_INET_H #define HAVE_ARPA_INET_H 1 #endif #ifndef NO_CBREAK #define HAVE_CBREAK 1 #endif #ifndef NO_CUSERID #define HAVE_CUSERID 1 #endif #ifndef NO_FILIO_H #define HAVE_SYS_FILIO_H 1 #endif #ifndef NO_GETCWD #define HAVE_GETCWD 1 #endif #ifndef USE_SLANG #ifndef NO_KEYPAD #define HAVE_KEYPAD 1 #endif #ifndef NO_TTYTYPE #define HAVE_TTYTYPE 1 #endif #endif /* USE_SLANG */ #ifndef NO_PUTENV #define HAVE_PUTENV 1 #endif #ifndef NO_SIZECHANGE #define HAVE_SIZECHANGE 1 #endif #ifndef NO_UNISTD_H #undef HAVE_UNISTD_H #define HAVE_UNISTD_H 1 #endif #ifndef NO_UTMP #define HAVE_UTMP 1 #endif #endif /* HAVE_CONFIG_H */ #include <assert.h> /* suppress inadvertent use of gettext in makeuctb when cross-compiling */ #ifdef DONT_USE_GETTEXT #undef HAVE_GETTEXT #undef HAVE_LIBGETTEXT_H #undef HAVE_LIBINTL_H #endif #ifndef HAVE_ICONV #undef EXP_JAPANESEUTF8_SUPPORT #endif #ifndef lynx_srand #define lynx_srand srand #endif #ifndef lynx_rand #define lynx_rand rand #endif #if '0' != 48 #define NOT_ASCII #endif #if '0' == 240 #define EBCDIC #endif #ifndef LY_MAXPATH #define LY_MAXPATH 256 #endif #ifndef GCC_NORETURN #define GCC_NORETURN /* nothing */ #endif #ifndef GCC_UNUSED #define GCC_UNUSED /* nothing */ #endif #if defined(__GNUC__) && defined(_FORTIFY_SOURCE) #define USE_IGNORE_RC extern int ignore_unused; #define IGNORE_RC(func) ignore_unused = (int) func #else #define IGNORE_RC(func) (void) func #endif /* gcc workarounds */ #if defined(__CYGWIN32__) && ! defined(__CYGWIN__) #define __CYGWIN__ 1 #endif #if defined(__CYGWIN__) /* 1998/12/31 (Thu) 16:13:46 */ #ifdef USE_OPENSSL_INCL #define NOCRYPT /* workaround for openssl 1.0.1e bug */ #endif #include <windows.h> /* #include "windef.h" */ #define BOOLEAN_DEFINED #undef HAVE_POPEN /* FIXME: does this not work, or is it missing */ #undef small /* see <w32api/rpcndr.h> */ #endif #if defined(__DARWIN_NO_LONG_LONG) #undef HAVE_ATOLL #endif #if defined(HAVE_ATOLL) #define LYatoll(n) atoll(n) #else extern off_t LYatoll(const char *value); #endif /* cygwin, mingw32, etc. */ #ifdef FILE_DOES_NOT_EXIST #undef FILE_DOES_NOT_EXIST /* see <w32api/winnt.h> */ #endif /* * VS .NET 2003 includes winsock.h unconditionally from windows.h, * so we do not want to include windows.h if we want winsock2.h */ #if defined(_WINDOWS) && !defined(__CYGWIN__) #ifndef __GNUC__ #pragma warning (disable : 4100) /* unreferenced formal parameter */ #pragma warning (disable : 4127) /* conditional expression is constant */ #pragma warning (disable : 4201) /* nameless struct/union */ #pragma warning (disable : 4214) /* bit field types other than int */ #pragma warning (disable : 4310) /* cast truncates constant value */ #pragma warning (disable : 4514) /* unreferenced inline function has been removed */ #pragma warning (disable : 4996) /* This function or variable may be unsafe. ... */ #endif #if defined(USE_WINSOCK2_H) && (_MSC_VER >= 1300) && (_MSC_VER < 1400) #include <winsock2.h> /* includes windows.h, in turn windef.h */ #else #include <windows.h> /* #include "windef.h" */ #endif #define BOOLEAN_DEFINED #if !_WIN_CC /* 1999/09/29 (Wed) 22:00:53 */ #include <dos.h> #endif #if defined(DECL_SLEEP) && defined(HAVE_CONFIG_H) # undef sleep # if defined(__MINGW32__) # define sleep(n) Sleep((n)*100) # else extern void sleep(unsigned __seconds); # endif #elif !defined(__MINGW32__) # undef sleep extern void sleep(unsigned __seconds); #endif #define popen _popen #define pclose _pclose #if defined(_MSC_VER) && (_MSC_VER > 0) typedef unsigned short mode_t; #endif #endif /* _WINDOWS */ #if defined(USE_DEFAULT_COLORS) && !defined(HAVE_USE_DEFAULT_COLORS) /* if we don't have use_default_colors() */ # undef USE_DEFAULT_COLORS #endif #ifndef USE_COLOR_STYLE /* it's useless for such setup */ # define NO_EMPTY_HREFLESS_A #endif #if defined(__EMX__) || defined(WIN_EX) || defined(HAVE_POPEN) # define CAN_CUT_AND_PASTE #endif #if defined(USE_SLANG) || (defined(USE_COLOR_STYLE) && defined(__EMX__)) # define USE_BLINK #endif #if defined(DOSPATH) || defined(__EMX__) # define USE_DOS_DRIVES /* we allow things like "c:" in paths */ #endif #if defined(UNIX) # if (defined(__BEOS__) || defined(__CYGWIN__) || defined(__DJGPP__) || defined(__EMX__) || defined(__MINGW32__)) # define SINGLE_USER_UNIX /* well, at least they try */ # else # define MULTI_USER_UNIX # endif #endif /* ERROR TYPE This is passed back when streams are aborted. It might be nice to have some structure of error messages, numbers, and recursive pointers to reasons. Currently this is a placeholder for something more sophisticated. */ typedef void *HTError; /* Unused at present -- best definition? */ /* Standard C library for malloc() etc */ #ifdef HAVE_STDLIB_H #include <stdlib.h> #endif #ifndef EXIT_SUCCESS #define EXIT_SUCCESS 0 #endif #ifndef EXIT_FAILURE #define EXIT_FAILURE 1 #endif #ifdef __EMX__ #include <unistd.h> /* should be re-include protected under EMX */ #define getcwd _getcwd2 #define chdir _chdir2 #endif #ifdef vax #ifdef unix #define ultrix /* Assume vax+unix=ultrix */ #endif /* unix */ #endif /* vax */ #ifndef VMS #ifndef ultrix #ifdef NeXT #include <libc.h> /* NeXT */ #endif /* NeXT */ #else /* ultrix: */ #include <malloc.h> #include <memory.h> #endif /* !ultrix */ #else /* VMS: */ #include <unixlib.h> #if defined(VAXC) && !defined(__DECC) #define malloc VAXC$MALLOC_OPT #define calloc VAXC$CALLOC_OPT #define free VAXC$FREE_OPT #define cfree VAXC$CFREE_OPT #define realloc VAXC$REALLOC_OPT #endif /* VAXC && !__DECC */ #endif /* !VMS */ #ifndef NULL #define NULL ((void *)0) #endif #define DeConst(p) (void *)(intptr_t)(p) #define isEmpty(s) ((s) == 0 || *(s) == 0) #define non_empty(s) !isEmpty(s) #define NonNull(s) (((s) != 0) ? s : "") #define NONNULL(s) (((s) != 0) ? s : "(null)") /* array/table size */ #define TABLESIZE(v) (sizeof(v)/sizeof(v[0])) #define typecalloc(cast) (cast *)calloc((size_t)1, sizeof(cast)) #define typecallocn(cast,ntypes) (cast *)calloc((size_t)(ntypes),sizeof(cast)) #define typeRealloc(cast,ptr,ntypes) (cast *)realloc(ptr, (size_t)(ntypes)*sizeof(cast)) #define typeMalloc(cast) (cast *)malloc(sizeof(cast)) #define typeMallocn(cast,ntypes) (cast *)malloc((size_t)(ntypes)*sizeof(cast)) /* OFTEN USED INTEGER MACROS Min and Max functions */ #ifndef HTMIN #define HTMIN(a,b) ((a) <= (b) ? (a) : (b)) #define HTMAX(a,b) ((a) >= (b) ? (a) : (b)) #endif /* Booleans */ /* Note: GOOD and BAD are already defined (differently) on RS6000 aix */ /* #define GOOD(status) ((status)38;1) VMS style status: test bit 0 */ /* #define BAD(status) (!GOOD(status)) Bit 0 set if OK, otherwise clear */ #ifndef _WINDOWS #ifndef BOOLEAN_DEFINED typedef char BOOLEAN; /* Logical value */ #ifndef CURSES #ifndef TRUE #define TRUE (BOOLEAN)1 #define FALSE (BOOLEAN)0 #endif #endif /* CURSES */ #endif /* BOOLEAN_DEFINED */ #define BOOLEAN_DEFINED #endif /* _WINDOWS */ #if defined(_MSC_VER) && (_MSC_VER >= 1300) /* it declares BOOL/BOOLEAN as BYTE/int */ #else #ifndef BOOL #define BOOL BOOLEAN #endif #endif #ifndef YES #define YES (BOOLEAN)1 #define NO (BOOLEAN)0 #endif #define STRING1PTR const char * #define STRING2PTR const char * const * extern BOOL LYOutOfMemory; /* Declared in LYexit.c - FM */ #define TCP_PORT 80 /* Allocated to http by Jon Postel/ISI 24-Jan-92 */ #define OLD_TCP_PORT 2784 /* Try the old one if no answer on 80 */ #define DNP_OBJ 80 /* This one doesn't look busy, but we must check */ /* That one was for decnet */ /* Inline Function WHITE: Is character c white space? */ /* For speed, include all control characters */ #define WHITE(c) ((UCH(TOASCII(c))) <= 32) /* Inline Function LYIsASCII: Is character c a traditional ASCII * character (i.e. <128) after converting from host character set. */ #define LYIsASCII(c) (TOASCII(UCH(c)) < 128) /* Success (>=0) and failure (<0) codes Some of the values are chosen to be HTTP-like, but status return values are generally not the response status from any specific protocol. */ #define HT_PARSER_OTHER_CONTENT 701 /* tells SGML to change content model */ #define HT_PARSER_REOPEN_ELT 700 /* tells SGML parser to keep tag open */ #define HT_REDIRECTING 399 #define HT_PARTIAL_CONTENT 206 /* Partial Content */ #define HT_LOADED 200 /* Instead of a socket */ #define HT_OK 0 /* Generic success */ #define HT_ERROR -1 /* Generic failure */ #define HT_CANNOT_TRANSLATE -4 #define HT_BAD_EOF -12 /* Premature EOF */ #define HT_NO_CONNECTION -99 /* ERR no connection available - */ #define HT_NO_DATA -204 /* OK but no data was loaded - */ /* possibly other app started or forked */ #define HT_NO_ACCESS -401 /* Access not available */ #define HT_FORBIDDEN -403 /* Access forbidden */ #define HT_NOT_ACCEPTABLE -406 /* Not Acceptable */ #define HT_H_ERRNO_VALID -800 /* see h_errno for resolver error */ #define HT_INTERNAL -900 /* Weird -- should never happen. */ #define HT_INTERRUPTED -29998 #define HT_NOT_LOADED -29999 #ifndef va_arg # include <stdarg.h> #endif #define LYva_start(ap,format) va_start(ap,format) /* * GCC can be told that some functions are like printf (and do type-checking on * their parameters). */ #ifndef GCC_PRINTFLIKE #if defined(GCC_PRINTF) && !defined(printf) && !defined(HAVE_LIBUTF8_H) #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var))) #else #define GCC_PRINTFLIKE(fmt,var) /*nothing */ #endif #endif #include <HTString.h> /* String utilities */ /* Out Of Memory checking for malloc() return: */ #ifndef __FILE__ #define __FILE__ "" #define __LINE__ "" #endif #include <LYexit.h> /* * Upper- and Lowercase macros * * The problem here is that toupper(x) is not defined officially unless * isupper(x) is. These macros are CERTAINLY needed on #if defined(pyr) || * define(mips) or BDSI platforms. For safefy, we make them mandatory. * * Note: Pyramid and Mips can't uppercase non-alpha. */ #include <ctype.h> #include <string.h> #ifndef TOLOWER #ifdef USE_ASCII_CTYPES #define TOLOWER(c) ascii_tolower(UCH(c)) #define TOUPPER(c) ascii_toupper(UCH(c)) #define ISUPPER(c) ascii_isupper(UCH(c)) #else #define TOLOWER(c) (isupper(UCH(c)) ? tolower(UCH(c)) : UCH(c)) #define TOUPPER(c) (islower(UCH(c)) ? toupper(UCH(c)) : UCH(c)) #define ISUPPER(c) (isupper(UCH(c))) #endif #endif /* TOLOWER */ #define FREE(x) {if (x != 0) {free((char *)x); x = NULL;}} /* The local equivalents of CR and LF We can check for these after net ascii text has been converted to the local representation. Similarly, we include them in strings to be sent as net ascii after translation. */ #define LF FROMASCII('\012') /* ASCII line feed LOCAL EQUIVALENT */ #define CR FROMASCII('\015') /* Will be converted to ^M for transmission */ /* * Debug message control. */ #ifdef NO_LYNX_TRACE #define WWW_TraceFlag 0 #define WWW_TraceMask 0 #define LYTraceLogFP 0 #else extern BOOLEAN WWW_TraceFlag; extern int WWW_TraceMask; #endif #define TRACE (WWW_TraceFlag) #define TRACE_bit(n) (TRACE && (WWW_TraceMask & (1 << n)) != 0) #define TRACE_SGML (TRACE_bit(0)) #define TRACE_STYLE (TRACE_bit(1)) #define TRACE_TRST (TRACE_bit(2)) #define TRACE_CFG (TRACE_bit(3)) #define TRACE_BSTRING (TRACE_bit(4)) #define TRACE_COOKIES (TRACE_bit(5)) #define TRACE_CHARSETS (TRACE_bit(6)) #define TRACE_GRIDTEXT (TRACE_bit(7)) #define TRACE_TIMING (TRACE_bit(8)) #define TRACE_HTPARSE (TRACE_bit(9)) /* * Get printing/scanning formats. */ #if defined(HAVE_INTTYPES_H) #include <inttypes.h> #endif #define DigitsOf(type) (int)((sizeof(type)*8)/3) /* * Printing/scanning-formats for "off_t", as well as cast needed to fit. */ #if defined(HAVE_LONG_LONG) && defined(HAVE_INTTYPES_H) && defined(SIZEOF_OFF_T) #if (SIZEOF_OFF_T == 8) && defined(PRId64) && defined(SCNd64) #define PRI_off_t PRId64 #define SCN_off_t SCNd64 #define CAST_off_t(n) (int64_t)(n) #elif (SIZEOF_OFF_T == 4) && defined(PRId32) #define PRI_off_t PRId32 #define SCN_off_t SCNd32 #if (SIZEOF_INT == 4) #define CAST_off_t(n) (int)(n) #elif (SIZEOF_LONG == 4) #define CAST_off_t(n) (long)(n) #else #define CAST_off_t(n) (int32_t)(n) #endif #endif #endif #ifndef PRI_off_t #define GUESS_PRI_off_t #if (SIZEOF_OFF_T == SIZEOF_LONG) #define PRI_off_t "ld" #define SCN_off_t "ld" #define CAST_off_t(n) (long)(n) #elif defined(HAVE_LONG_LONG) #define PRI_off_t "lld" #define SCN_off_t "lld" #define CAST_off_t(n) (long long)(n) #else #define PRI_off_t "ld" /* SCN_off_t requires workaround */ #define CAST_off_t(n) (long)(n) #endif #endif /* * MinGW-32 uses only 32-bit DLL, which limits printing. */ #if defined(__MINGW32__) #undef PRI_off_t #undef CAST_off_t #define PRI_off_t "ld" #define CAST_off_t(n) (long)(n) #endif /* * Printing-format for "time_t", as well as cast needed to fit. */ #if defined(HAVE_LONG_LONG) && defined(HAVE_INTTYPES_H) && defined(SIZEOF_TIME_T) #if (SIZEOF_TIME_T == 8) && defined(PRId64) #define PRI_time_t PRId64 #define SCN_time_t SCNd64 #define CAST_time_t(n) (int64_t)(n) #elif (SIZEOF_TIME_T == 4) && defined(PRId32) #define PRI_time_t PRId32 #define SCN_time_t SCNd32 #if (SIZEOF_INT == 4) #define CAST_time_t(n) (int)(n) #elif (SIZEOF_LONG == 4) #define CAST_time_t(n) (long)(n) #else #define CAST_time_t(n) (int32_t)(n) #endif #endif #endif #ifndef PRI_time_t #if defined(HAVE_LONG_LONG) && (SIZEOF_TIME_T > SIZEOF_LONG) #define PRI_time_t "lld" #define SCN_time_t "lld" #define CAST_time_t(n) (long long)(n) #else #define PRI_time_t "ld" #define SCN_time_t "ld" #define CAST_time_t(n) (long)(n) #endif #endif /* * Printing-format for "UCode_t". */ #define PRI_UCode_t "lX" /* * Verbose-tracing. */ #if defined(USE_VERTRACE) && !defined(LY_TRACELINE) #define LY_TRACELINE __LINE__ #endif #if defined(LY_TRACELINE) #define LY_SHOWWHERE fprintf( tfp, "%s: %d: ", __FILE__, LY_TRACELINE ), #else #define LY_SHOWWHERE /* nothing */ #endif #define CTRACE(p) ((void)((TRACE) && ( LY_SHOWWHERE fprintf p ))) #define CTRACE2(m,p) ((void)((m) && ( LY_SHOWWHERE fprintf p ))) #define tfp TraceFP() #define CTRACE_SLEEP(secs) if (TRACE && LYTraceLogFP == 0) sleep((unsigned)secs) #define CTRACE_FLUSH(fp) if (TRACE) fflush(fp) #include <www_tcp.h> /* * We force this include-ordering since socks.h contains redefinitions of * functions that probably are prototyped via other includes. The socks.h * definitions have to be included everywhere, since they're making wrappers * for the stdio functions as well as the network functions. */ #if defined(USE_SOCKS5) #define SOCKS4TO5 /* turn on the Rxxxx definitions used in Lynx */ #include <socks.h> /* * The AIX- and SOCKS4-specific definitions in socks.h are inconsistent. * Repair them so they're consistent (and usable). */ #if defined(_AIX) && !defined(USE_SOCKS4_PREFIX) #undef Raccept #define Raccept accept #undef Rgetsockname #define Rgetsockname getsockname #undef Rgetpeername #define Rgetpeername getpeername #endif /* * Workaround for order-of-evaluation problem with gcc and socks5 headers * which breaks the Rxxxx names by attaching the prefix twice: */ #ifdef INCLUDE_PROTOTYPES #undef Raccept #undef Rbind #undef Rconnect #undef Rlisten #undef Rselect #undef Rgetpeername #undef Rgetsockname #define Raccept accept #define Rbind bind #define Rconnect connect #define Rgetpeername getpeername #define Rgetsockname getsockname #define Rlisten listen #define Rselect select #endif #elif defined(SOCKS) #include <socks.h> #endif /* USE_SOCKS5 */ #ifdef USE_SSL #define free_func free__func #ifdef USE_OPENSSL_INCL #include <openssl/ssl.h> #include <openssl/crypto.h> #include <openssl/rand.h> #include <openssl/err.h> #else #if defined(USE_GNUTLS_FUNCS) #include <tidy_tls.h> #define USE_GNUTLS_INCL 1 /* do this for the ".c" ifdef's */ #elif defined(USE_GNUTLS_INCL) #include <gnutls/openssl.h> /* * GNUTLS's implementation of OpenSSL is very incomplete and rudimentary. * For a start, let's make it compile (TD - 2003/4/13). */ #ifndef SSL_VERIFY_PEER #define SSL_VERIFY_PEER 0x01 #endif #else #ifdef USE_NSS_COMPAT_INCL #include <nss_compat_ossl/nss_compat_ossl.h> #else /* assume SSLeay */ #include <ssl.h> #include <crypto.h> #include <rand.h> #include <err.h> #endif #endif #endif /* USE_OPENSSL_INCL */ #undef free_func #endif /* USE_SSL */ #ifdef HAVE_BSD_STDLIB_H #include <bsd/stdlib.h> /* prototype for arc4random.h */ #elif defined(HAVE_BSD_RANDOM_H) #include <bsd/random.h> /* prototype for arc4random.h */ #endif #ifdef HAVE_LIBDMALLOC #include <dmalloc.h> /* Gray Watson's library */ #define show_alloc() dmalloc_log_unfreed() #endif #ifdef HAVE_LIBDBMALLOC #include <dbmalloc.h> /* Conor Cahill's library */ #define show_alloc() malloc_dump(fileno(stderr)) #endif #ifndef show_alloc #define show_alloc() /* nothing */ #endif #include <userdefs.h> #ifdef __cplusplus extern "C" { #endif #ifndef TOLOWER #ifdef USE_ASCII_CTYPES extern int ascii_toupper(int); extern int ascii_tolower(int); extern int ascii_isupper(int); #endif #endif extern FILE *TraceFP(void); extern char *HTSkipToAt(char *host, int *gen_delims); extern void strip_userid(char *host, int warn); #ifdef USE_SSL extern SSL *HTGetSSLHandle(void); extern void HTSSLInitPRNG(void); extern int HTGetSSLCharacter(void *handle); #endif /* USE_SSL */ #ifdef __cplusplus } #endif #endif /* HTUTILS_H */


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