| /*------------------------------------------------------------------------- |
| * |
| * port.h |
| * Header for src/port/ compatibility functions. |
| * |
| * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group |
| * Portions Copyright (c) 1994, Regents of the University of California |
| * |
| * $PostgreSQL: pgsql/src/include/port.h,v 1.134 2010/05/15 14:44:13 tgl Exp $ |
| * |
| *------------------------------------------------------------------------- |
| */ |
| #ifndef PG_PORT_H |
| #define PG_PORT_H |
| |
| #include <ctype.h> |
| #include <netdb.h> |
| #include <pwd.h> |
| |
| /* socket has a different definition on WIN32 */ |
| #ifndef WIN32 |
| typedef int pgsocket; |
| |
| #define PGINVALID_SOCKET (-1) |
| #else |
| typedef SOCKET pgsocket; |
| |
| #define PGINVALID_SOCKET INVALID_SOCKET |
| #endif |
| |
| /* non-blocking */ |
| extern bool pg_set_noblock(pgsocket sock); |
| extern bool pg_set_block(pgsocket sock); |
| |
| /* Portable path handling for Unix/Win32 (in path.c) */ |
| |
| 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_html_path(const char *my_exec_path, char *ret_path); |
| extern void get_man_path(const char *my_exec_path, char *ret_path); |
| extern bool get_home_path(char *ret_path); |
| extern void get_parent_directory(char *path); |
| extern char *gp_mkdtemp(char *template_path); |
| |
| /* port/dirmod.c */ |
| extern char **pgfnames(const char *path); |
| extern void pgfnames_cleanup(char **filenames); |
| |
| /* |
| * is_absolute_path |
| * |
| * By making this a macro we avoid needing to include path.c in libpq. |
| */ |
| #ifndef WIN32 |
| #define is_absolute_path(filename) \ |
| ( \ |
| ((filename)[0] == '/') \ |
| ) |
| #else |
| #define is_absolute_path(filename) \ |
| ( \ |
| ((filename)[0] == '/') || \ |
| (filename)[0] == '\\' || \ |
| (isalpha((unsigned char) ((filename)[0])) && (filename)[1] == ':' && \ |
| ((filename)[2] == '\\' || (filename)[2] == '/')) \ |
| ) |
| #endif |
| |
| /* Portable locale initialization (in exec.c) */ |
| extern void set_pglocale_pgservice(const char *argv0, const char *app); |
| |
| /* Portable way to find binaries (in exec.c) */ |
| 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); |
| |
| /* Windows security token manipulation (in exec.c) */ |
| #ifdef WIN32 |
| extern BOOL AddUserToTokenDacl(HANDLE hToken); |
| #endif |
| |
| |
| #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. |
| * |
| * Generated using Win32 "CMD /?": |
| * |
| * 1. If all of the following conditions are met, then quote characters |
| * on the command line are preserved: |
| * |
| * - no /S switch |
| * - exactly two quote characters |
| * - no special characters between the two quote characters, where special |
| * is one of: &<>()@^| |
| * - there are one or more whitespace characters between the two quote |
| * characters |
| * - the string between the two quote characters is the name of an |
| * executable file. |
| * |
| * 2. Otherwise, old behavior is to see if the first character is a quote |
| * character and if so, strip the leading character and remove the last |
| * quote character on the command line, preserving any text after the last |
| * quote character. |
| */ |
| #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 vfprintf |
| #undef vfprintf |
| #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_vfprintf(FILE *stream, const char *fmt, va_list args); |
| 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 vfprintf(...) pg_vfprintf(__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 vfprintf pg_vfprintf |
| #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 |
| /* |
| * The function prototypes are not supplied because every C file |
| * includes this file. |
| */ |
| #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. |
| */ |
| 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_ONLY_COMPILER |
| #include <io.h> |
| #endif |
| |
| #define rename(from, to) pgrename(from, to) |
| #define unlink(path) pgunlink(path) |
| #endif /* defined(WIN32) || defined(__CYGWIN__) */ |
| |
| /* |
| * Win32 also doesn't have symlinks, but we can emulate them with |
| * junction points on newer Win32 versions. |
| * |
| * Cygwin has its own symlinks which work on Win95/98/ME where |
| * junction points don't, so use those 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 |
| |
| extern void copydir(char *fromdir, char *todir, bool recurse); |
| |
| extern bool rmtree(const char *path, bool rmtopdir); |
| |
| /* |
| * stat() is not guaranteed to set the st_size field on win32, so we |
| * redefine it to our own implementation that is. |
| * |
| * We must pull in sys/stat.h here so the system header definition |
| * goes in first, and we redefine that, and not the other way around. |
| * |
| * Some frontends don't need the size from stat, so if UNSAFE_STAT_OK |
| * is defined we don't bother with this. |
| */ |
| #if defined(WIN32) && !defined(__CYGWIN__) && !defined(UNSAFE_STAT_OK) |
| #include <sys/stat.h> |
| extern int pgwin32_safestat(const char *path, struct stat * buf); |
| |
| #define stat(a,b) pgwin32_safestat(a,b) |
| #endif |
| |
| #if defined(WIN32) && !defined(__CYGWIN__) |
| |
| /* |
| * open() and fopen() replacements to allow deletion of open files and |
| * passing of other special options. |
| */ |
| #define O_DIRECT 0x80000000 |
| extern int pgwin32_open(const char *, int,...); |
| extern FILE *pgwin32_fopen(const char *, const char *); |
| |
| #ifndef FRONTEND |
| #define open(a,b,c) pgwin32_open(a,b,c) |
| #define fopen(a,b) pgwin32_fopen(a,b) |
| #endif |
| |
| #define popen(a,b) _popen(a,b) |
| #define pclose(a) _pclose(a) |
| |
| /* New versions of MingW have gettimeofday, old mingw and msvc don't */ |
| #ifndef HAVE_GETTIMEOFDAY |
| /* Last parameter not used */ |
| extern int gettimeofday(struct timeval * tp, struct timezone * tzp); |
| #endif |
| #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 |
| |
| /* WIN32 handled in port/win32.h */ |
| #ifndef WIN32 |
| #define pgoff_t off_t |
| #if defined(__bsdi__) || defined(__NetBSD__) |
| extern int fseeko(FILE *stream, off_t offset, int whence); |
| extern off_t ftello(FILE *stream); |
| #endif |
| #endif |
| |
| #ifndef HAVE_ERAND48 |
| /* we assume all of these are present or missing together */ |
| extern double erand48(unsigned short xseed[3]); |
| extern long lrand48(void); |
| extern void srand48(long seed); |
| #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 |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| extern int inet_aton(const char *cp, struct in_addr * addr); |
| #endif |
| |
| #ifndef HAVE_STRDUP |
| extern char *strdup(const char *str); |
| #endif |
| |
| #if !HAVE_DECL_STRLCAT |
| extern size_t strlcat(char *dst, const char *src, size_t siz); |
| #endif |
| |
| #if !HAVE_DECL_STRLCPY |
| extern size_t strlcpy(char *dst, const char *src, size_t siz); |
| #endif |
| |
| #if !defined(HAVE_RANDOM) && !defined(__BORLANDC__) |
| 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__) |
| // Obsolete -- use pqGetpwuid() instead. |
| extern struct passwd * get_gp_passwdptr(void); |
| #endif |
| |
| #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); |
| |
| extern void pg_qsort(void *base, size_t nel, size_t elsize, |
| int (*cmp) (const void *, const void *)); |
| |
| #define qsort(a,b,c,d) pg_qsort(a,b,c,d) |
| |
| typedef int (*qsort_arg_comparator) (const void *a, const void *b, void *arg); |
| |
| extern void qsort_arg(void *base, size_t nel, size_t elsize, |
| qsort_arg_comparator cmp, void *arg); |
| |
| /* port/chklocale.c */ |
| extern int pg_get_encoding_from_locale(const char *ctype); |
| |
| #endif /* PG_PORT_H */ |