/*------------------------------------------------------------------------- * * port.h * Header for src/port/ compatibility functions. * * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * $PostgreSQL: pgsql/src/include/port.h,v 1.84.2.6 2006/04/24 04:03:38 momjian Exp $ * *------------------------------------------------------------------------- */ #ifndef WIN32_CLIENT_ONLY /* for thread.c */ #include #include #endif #include /* non-blocking */ extern bool pg_set_noblock( int sock ); extern bool pg_set_block( int sock ); /* Portable path handling for Unix/Win32 */ extern char *first_dir_separator( const char *filename ); extern char *last_dir_separator( const char *filename ); extern char *first_path_separator( const char *pathlist ); extern void join_path_components( char *ret_path, const char *head, const char *tail ); extern void canonicalize_path( char *path ); extern void make_native_path( char *path ); extern bool path_contains_parent_reference( const char *path ); extern bool path_is_prefix_of_path( const char *path1, const char *path2 ); extern const char *get_progname( const char *argv0 ); extern void get_share_path( const char *my_exec_path, char *ret_path ); extern void get_etc_path( const char *my_exec_path, char *ret_path ); extern void get_include_path( const char *my_exec_path, char *ret_path ); extern void get_pkginclude_path( const char *my_exec_path, char *ret_path ); extern void get_includeserver_path( const char *my_exec_path, char *ret_path ); extern void get_lib_path( const char *my_exec_path, char *ret_path ); extern void get_pkglib_path( const char *my_exec_path, char *ret_path ); extern void get_locale_path( const char *my_exec_path, char *ret_path ); extern void get_doc_path( const char *my_exec_path, char *ret_path ); extern void get_man_path( const char *my_exec_path, char *ret_path ); extern void set_pglocale_pgservice( const char *argv0, const char *app ); extern bool get_home_path( char *ret_path ); extern void get_parent_directory( char *path ); /* * is_absolute_path * * By making this a macro we prevent the need for libpq to include * path.c which uses exec.c. */ #ifndef WIN32 #define is_absolute_path(filename) \ ( \ ((filename)[0] == '/') \ ) #else #define is_absolute_path(filename) \ ( \ ((filename)[0] == '/') || \ (filename)[0] == '\\' || \ (isalpha((filename)[0]) && (filename)[1] == ':' && \ ((filename)[2] == '\\' || (filename)[2] == '/')) \ ) #endif /* Portable way to find binaries */ extern int find_my_exec( const char *argv0, char *retpath ); extern int find_other_exec( const char *argv0, const char *target, const char *versionstr, char *retpath ); #if defined(WIN32) || defined(__CYGWIN__) #define EXE ".exe" #else #define EXE "" #endif #if defined(WIN32) && !defined(__CYGWIN__) #define DEVNULL "nul" /* "con" does not work from the Msys 1.0.10 console (part of MinGW). */ #define DEVTTY "con" #else #define DEVNULL "/dev/null" #define DEVTTY "/dev/tty" #endif /* * Win32 needs double quotes at the beginning and end of system() * strings. If not, it gets confused with multiple quoted strings. * It also requires double-quotes around the executable name and * any files used for redirection. Other args can use single-quotes. * * See the "Notes" section about quotes at: * http://home.earthlink.net/~rlively/MANUALS/COMMANDS/C/CMD.HTM */ #if defined(WIN32) && !defined(__CYGWIN__) #define SYSTEMQUOTE "\"" #else #define SYSTEMQUOTE "" #endif /* Portable delay handling */ extern void pg_usleep( long microsec ); /* Portable SQL-like case-independent comparisons and conversions */ extern int pg_strcasecmp( const char *s1, const char *s2 ); extern int pg_strncasecmp( const char *s1, const char *s2, size_t n ); extern unsigned char pg_toupper( unsigned char ch ); extern unsigned char pg_tolower( unsigned char ch ); #ifdef USE_REPL_SNPRINTF /* * Versions of libintl >= 0.13 try to replace printf() and friends with * macros to their own versions that understand the %$ format. We do the * same, so disable their macros, if they exist. */ #ifdef vsnprintf #undef vsnprintf #endif #ifdef snprintf #undef snprintf #endif #ifdef sprintf #undef sprintf #endif #ifdef fprintf #undef fprintf #endif #ifdef printf #undef printf #endif extern int pg_vsnprintf( char *str, size_t count, const char *fmt, va_list args ); extern int pg_snprintf( char *str, size_t count, const char *fmt, ... ) /* This extension allows gcc to check the format string */ __attribute__(( format( printf, 3, 4 ) ) ); extern int pg_sprintf( char *str, const char *fmt, ... ) /* This extension allows gcc to check the format string */ __attribute__(( format( printf, 2, 3 ) ) ); extern int pg_fprintf( FILE *stream, const char *fmt, ... ) /* This extension allows gcc to check the format string */ __attribute__(( format( printf, 2, 3 ) ) ); extern int pg_printf( const char *fmt, ... ) /* This extension allows gcc to check the format string */ __attribute__(( format( printf, 1, 2 ) ) ); /* * The GCC-specific code below prevents the __attribute__(... 'printf') * above from being replaced, and this is required because gcc doesn't * know anything about pg_printf. */ #ifdef __GNUC__ #define vsnprintf(...) pg_vsnprintf(__VA_ARGS__) #define snprintf(...) pg_snprintf(__VA_ARGS__) #define sprintf(...) pg_sprintf(__VA_ARGS__) #define fprintf(...) pg_fprintf(__VA_ARGS__) #define printf(...) pg_printf(__VA_ARGS__) #else #define vsnprintf pg_vsnprintf #define snprintf pg_snprintf #define sprintf pg_sprintf #define fprintf pg_fprintf #define printf pg_printf #endif #endif /* USE_REPL_SNPRINTF */ /* Portable prompt handling */ extern char *simple_prompt( const char *prompt, int maxlen, bool echo ); /* * WIN32 doesn't allow descriptors returned by pipe() to be used in select(), * so for that platform we use socket() instead of pipe(). * There is some inconsistency here because sometimes we require pg*, like * pgpipe, but in other cases we define rename to pgrename just on Win32. */ #ifndef WIN32 #define pgpipe(a) pipe(a) #define piperead(a,b,c) read(a,b,c) #define pipewrite(a,b,c) write(a,b,c) #else extern int pgpipe( int handles[2] ); extern int piperead( int s, char *buf, int len ); #define pipewrite(a,b,c) send(a,b,c,0) #define PG_SIGNAL_COUNT 32 #define kill(pid,sig) pgkill(pid,sig) extern int pgkill( int pid, int sig ); #endif extern int pclose_check( FILE *stream ); /* Global variable holding time zone information. */ #ifndef __CYGWIN__ #define TIMEZONE_GLOBAL timezone #define TZNAME_GLOBAL tzname #else #define TIMEZONE_GLOBAL _timezone #define TZNAME_GLOBAL _tzname #endif #if defined(WIN32) || defined(__CYGWIN__) /* * Win32 doesn't have reliable rename/unlink during concurrent access, * and we need special code to do symlinks. */ extern int pgrename( const char *from, const char *to ); extern int pgunlink( const char *path ); /* Include this first so later includes don't see these defines */ #ifdef WIN32_CLIENT_ONLY #include #endif #define rename(from, to) pgrename(from, to) #define unlink(path) pgunlink(path) /* * Cygwin has its own symlinks which work on Win95/98/ME where * junction points don't, so use it instead. We have no way of * knowing what type of system Cygwin binaries will be run on. * Note: Some CYGWIN includes might #define WIN32. */ #if defined(WIN32) && !defined(__CYGWIN__) extern int pgsymlink( const char *oldpath, const char *newpath ); #define symlink(oldpath, newpath) pgsymlink(oldpath, newpath) #endif #endif /* defined(WIN32) || defined(__CYGWIN__) */ extern void copydir( char *fromdir, char *todir, bool recurse ); extern bool rmtree( char *path, bool rmtopdir ); #if defined(WIN32) && !defined(__CYGWIN__) /* open() replacement to allow delete of held files and passing * of special options. */ #ifndef WIN32_CLIENT_ONLY extern int win32_open( const char *, int, ... ); #define open(a,b,...) win32_open(a,b,##__VA_ARGS__) #endif #define popen(a,b) _popen(a,b) #define pclose(a) _pclose(a) /* Missing rand functions */ extern long lrand48( void ); extern void srand48( long seed ); /* Last parameter not used */ //extern int gettimeofday( struct timeval * tp, struct timezone * tzp ); #else /* !WIN32 */ /* * Win32 requires a special close for sockets and pipes, while on Unix * close() does them all. */ #define closesocket close #endif /* WIN32 */ /* * Default "extern" declarations or macro substitutes for library routines. * When necessary, these routines are provided by files in src/port/. */ #ifndef HAVE_CRYPT extern char *crypt( const char *key, const char *setting ); #endif #if defined(bsdi) || defined(netbsd) extern int fseeko( FILE *stream, off_t offset, int whence ); extern off_t ftello( FILE *stream ); #endif #ifndef HAVE_FSEEKO #define fseeko(a, b, c) fseek(a, b, c) #define ftello(a) ftell(a) #endif #ifndef HAVE_GETOPT extern int getopt( int nargc, char *const * nargv, const char *ostr ); #endif #ifndef HAVE_ISINF extern int isinf( double x ); #endif #ifndef HAVE_RINT extern double rint( double x ); #endif #ifndef HAVE_INET_ATON #ifndef WIN32_CLIENT_ONLY #include #include #endif extern int inet_aton( const char *cp, struct in_addr * addr ); #endif #ifndef HAVE_STRDUP extern char *strdup( char const * ); #endif #ifndef HAVE_RANDOM extern long random( void ); #endif #ifndef HAVE_UNSETENV extern void unsetenv( const char *name ); #endif #ifndef HAVE_SRANDOM extern void srandom( unsigned int seed ); #endif /* thread.h */ extern char *pqStrerror( int errnum, char *strerrbuf, size_t buflen ); #if !defined(WIN32) || defined(__CYGWIN__) extern int pqGetpwuid( uid_t uid, struct passwd * resultbuf, char *buffer, size_t buflen, struct passwd ** result ); #endif extern int pqGethostbyname( const char *name, struct hostent * resultbuf, char *buffer, size_t buflen, struct hostent ** result, int *herrno );