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/*-------------------------------------------------------------------------
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* Header for src/port/ compatibility functions.
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* Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*-------------------------------------------------------------------------
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extern bool pg_set_noblock(int sock);
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extern bool pg_set_block(int sock);
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/* Portable path handling for Unix/Win32 (in path.c) */
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extern char *first_dir_separator(const char *filename);
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extern char *last_dir_separator(const char *filename);
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extern char *first_path_separator(const char *pathlist);
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extern void join_path_components(char *ret_path,
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const char *head, const char *tail);
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extern void canonicalize_path(char *path);
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extern void make_native_path(char *path);
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extern bool path_contains_parent_reference(const char *path);
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extern bool path_is_prefix_of_path(const char *path1, const char *path2);
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extern const char *get_progname(const char *argv0);
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extern void get_share_path(const char *my_exec_path, char *ret_path);
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extern void get_etc_path(const char *my_exec_path, char *ret_path);
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extern void get_include_path(const char *my_exec_path, char *ret_path);
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extern void get_pkginclude_path(const char *my_exec_path, char *ret_path);
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extern void get_includeserver_path(const char *my_exec_path, char *ret_path);
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extern void get_lib_path(const char *my_exec_path, char *ret_path);
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extern void get_pkglib_path(const char *my_exec_path, char *ret_path);
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extern void get_locale_path(const char *my_exec_path, char *ret_path);
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extern void get_doc_path(const char *my_exec_path, char *ret_path);
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extern void get_html_path(const char *my_exec_path, char *ret_path);
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extern void get_man_path(const char *my_exec_path, char *ret_path);
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extern bool get_home_path(char *ret_path);
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extern void get_parent_directory(char *path);
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extern char **pgfnames(const char *path);
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extern void pgfnames_cleanup(char **filenames);
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* By making this a macro we avoid needing to include path.c in libpq.
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#define is_absolute_path(filename) \
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((filename)[0] == '/') \
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#define is_absolute_path(filename) \
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((filename)[0] == '/') || \
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(filename)[0] == '\\' || \
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(isalpha((unsigned char) ((filename)[0])) && (filename)[1] == ':' && \
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((filename)[2] == '\\' || (filename)[2] == '/')) \
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/* Portable locale initialization (in exec.c) */
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extern void set_pglocale_pgservice(const char *argv0, const char *app);
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/* Portable way to find binaries (in exec.c) */
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extern int find_my_exec(const char *argv0, char *retpath);
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extern int find_other_exec(const char *argv0, const char *target,
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const char *versionstr, char *retpath);
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/* Windows security token manipulation (in exec.c) */
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extern BOOL AddUserToDacl(HANDLE hProcess);
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#if defined(WIN32) || defined(__CYGWIN__)
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#if defined(WIN32) && !defined(__CYGWIN__)
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/* "con" does not work from the Msys 1.0.10 console (part of MinGW). */
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#define DEVNULL "/dev/null"
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#define DEVTTY "/dev/tty"
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* Win32 needs double quotes at the beginning and end of system()
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* strings. If not, it gets confused with multiple quoted strings.
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* It also requires double-quotes around the executable name and
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* any files used for redirection. Other args can use single-quotes.
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* Generated using Win32 "CMD /?":
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* 1. If all of the following conditions are met, then quote characters
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* on the command line are preserved:
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* - exactly two quote characters
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* - no special characters between the two quote characters, where special
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* is one of: &<>()@^|
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* - there are one or more whitespace characters between the the two quote
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* - the string between the two quote characters is the name of an
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* 2. Otherwise, old behavior is to see if the first character is a quote
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* character and if so, strip the leading character and remove the last
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* quote character on the command line, preserving any text after the last
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#if defined(WIN32) && !defined(__CYGWIN__)
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#define SYSTEMQUOTE "\""
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#define SYSTEMQUOTE ""
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/* Portable delay handling */
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extern void pg_usleep(long microsec);
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/* Portable SQL-like case-independent comparisons and conversions */
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extern int pg_strcasecmp(const char *s1, const char *s2);
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extern int pg_strncasecmp(const char *s1, const char *s2, size_t n);
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extern unsigned char pg_toupper(unsigned char ch);
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extern unsigned char pg_tolower(unsigned char ch);
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#ifdef USE_REPL_SNPRINTF
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* Versions of libintl >= 0.13 try to replace printf() and friends with
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* macros to their own versions that understand the %$ format. We do the
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* same, so disable their macros, if they exist.
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extern int pg_vsnprintf(char *str, size_t count, const char *fmt, va_list args);
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pg_snprintf(char *str, size_t count, const char *fmt,...)
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/* This extension allows gcc to check the format string */
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__attribute__((format(printf, 3, 4)));
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pg_sprintf(char *str, const char *fmt,...)
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/* This extension allows gcc to check the format string */
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__attribute__((format(printf, 2, 3)));
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extern int pg_vfprintf(FILE *stream, const char *fmt, va_list args);
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pg_fprintf(FILE *stream, const char *fmt,...)
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/* This extension allows gcc to check the format string */
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__attribute__((format(printf, 2, 3)));
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pg_printf(const char *fmt,...)
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/* This extension allows gcc to check the format string */
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__attribute__((format(printf, 1, 2)));
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* The GCC-specific code below prevents the __attribute__(... 'printf')
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* above from being replaced, and this is required because gcc doesn't
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* know anything about pg_printf.
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#define vsnprintf(...) pg_vsnprintf(__VA_ARGS__)
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#define snprintf(...) pg_snprintf(__VA_ARGS__)
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#define sprintf(...) pg_sprintf(__VA_ARGS__)
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#define vfprintf(...) pg_vfprintf(__VA_ARGS__)
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#define fprintf(...) pg_fprintf(__VA_ARGS__)
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#define printf(...) pg_printf(__VA_ARGS__)
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#define vsnprintf pg_vsnprintf
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#define snprintf pg_snprintf
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#define sprintf pg_sprintf
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#define vfprintf pg_vfprintf
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#define fprintf pg_fprintf
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#define printf pg_printf
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#endif /* USE_REPL_SNPRINTF */
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/* Portable prompt handling */
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extern char *simple_prompt(const char *prompt, int maxlen, bool echo);
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* WIN32 doesn't allow descriptors returned by pipe() to be used in select(),
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* so for that platform we use socket() instead of pipe().
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* There is some inconsistency here because sometimes we require pg*, like
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* pgpipe, but in other cases we define rename to pgrename just on Win32.
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* The function prototypes are not supplied because every C file
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* includes this file.
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#define pgpipe(a) pipe(a)
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#define piperead(a,b,c) read(a,b,c)
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#define pipewrite(a,b,c) write(a,b,c)
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extern int pgpipe(int handles[2]);
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extern int piperead(int s, char *buf, int len);
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#define pipewrite(a,b,c) send(a,b,c,0)
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#define PG_SIGNAL_COUNT 32
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#define kill(pid,sig) pgkill(pid,sig)
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extern int pgkill(int pid, int sig);
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extern int pclose_check(FILE *stream);
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/* Global variable holding time zone information. */
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#define TIMEZONE_GLOBAL timezone
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#define TZNAME_GLOBAL tzname
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#define TIMEZONE_GLOBAL _timezone
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#define TZNAME_GLOBAL _tzname
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#if defined(WIN32) || defined(__CYGWIN__)
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* Win32 doesn't have reliable rename/unlink during concurrent access.
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extern int pgrename(const char *from, const char *to);
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extern int pgunlink(const char *path);
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/* Include this first so later includes don't see these defines */
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#ifdef WIN32_ONLY_COMPILER
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#define rename(from, to) pgrename(from, to)
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#define unlink(path) pgunlink(path)
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#endif /* defined(WIN32) || defined(__CYGWIN__) */
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* Win32 also doesn't have symlinks, but we can emulate them with
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* junction points on newer Win32 versions.
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* Cygwin has its own symlinks which work on Win95/98/ME where
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* junction points don't, so use those instead. We have no way of
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* knowing what type of system Cygwin binaries will be run on.
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* Note: Some CYGWIN includes might #define WIN32.
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#if defined(WIN32) && !defined(__CYGWIN__)
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extern int pgsymlink(const char *oldpath, const char *newpath);
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#define symlink(oldpath, newpath) pgsymlink(oldpath, newpath)
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extern void copydir(char *fromdir, char *todir, bool recurse);
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extern bool rmtree(const char *path, bool rmtopdir);
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* stat() is not guaranteed to set the st_size field on win32, so we
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* redefine it to our own implementation that is.
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* We must pull in sys/stat.h here so the system header definition
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* goes in first, and we redefine that, and not the other way around.
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* Some frontends don't need the size from stat, so if UNSAFE_STAT_OK
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* is defined we don't bother with this.
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#if defined(WIN32) && !defined(__CYGWIN__) && !defined(UNSAFE_STAT_OK)
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#include <sys/stat.h>
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extern int pgwin32_safestat(const char *path, struct stat *buf);
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#define stat(a,b) pgwin32_safestat(a,b)
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#if defined(WIN32) && !defined(__CYGWIN__)
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* open() and fopen() replacements to allow deletion of open files and
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* passing of other special options.
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#define O_DIRECT 0x80000000
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extern int pgwin32_open(const char *, int,...);
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extern FILE *pgwin32_fopen(const char *, const char *);
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#define open(a,b,c) pgwin32_open(a,b,c)
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#define fopen(a,b) pgwin32_fopen(a,b)
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#define popen(a,b) _popen(a,b)
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#define pclose(a) _pclose(a)
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/* Missing rand functions */
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extern long lrand48(void);
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extern void srand48(long seed);
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/* New versions of MingW have gettimeofday, old mingw and msvc don't */
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#ifndef HAVE_GETTIMEOFDAY
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/* Last parameter not used */
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extern int gettimeofday(struct timeval * tp, struct timezone * tzp);
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* Win32 requires a special close for sockets and pipes, while on Unix
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* close() does them all.
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#define closesocket close
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* Default "extern" declarations or macro substitutes for library routines.
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* When necessary, these routines are provided by files in src/port/.
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extern char *crypt(const char *key, const char *setting);
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/* WIN32 handled in port/win32.h */
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#define pgoff_t off_t
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#if defined(bsdi) || defined(netbsd)
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extern int fseeko(FILE *stream, off_t offset, int whence);
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extern off_t ftello(FILE *stream);
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#define fseeko(a, b, c) fseek(a, b, c)
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#define ftello(a) ftell(a)
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extern int getopt(int nargc, char *const * nargv, const char *ostr);
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extern int isinf(double x);
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extern double rint(double x);
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#ifndef HAVE_INET_ATON
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#include <netinet/in.h>
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#include <arpa/inet.h>
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extern int inet_aton(const char *cp, struct in_addr * addr);
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extern char *strdup(const char *str);
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#if !HAVE_DECL_STRLCAT
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extern size_t strlcat(char *dst, const char *src, size_t siz);
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#if !HAVE_DECL_STRLCPY
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extern size_t strlcpy(char *dst, const char *src, size_t siz);
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#if !defined(HAVE_RANDOM) && !defined(__BORLANDC__)
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extern long random(void);
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#ifndef HAVE_UNSETENV
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extern void unsetenv(const char *name);
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extern void srandom(unsigned int seed);
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extern char *pqStrerror(int errnum, char *strerrbuf, size_t buflen);
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#if !defined(WIN32) || defined(__CYGWIN__)
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extern int pqGetpwuid(uid_t uid, struct passwd * resultbuf, char *buffer,
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size_t buflen, struct passwd ** result);
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extern int pqGethostbyname(const char *name,
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struct hostent * resultbuf,
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char *buffer, size_t buflen,
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struct hostent ** result,
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extern void pg_qsort(void *base, size_t nel, size_t elsize,
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int (*cmp) (const void *, const void *));
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#define qsort(a,b,c,d) pg_qsort(a,b,c,d)
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typedef int (*qsort_arg_comparator) (const void *a, const void *b, void *arg);
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extern void qsort_arg(void *base, size_t nel, size_t elsize,
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qsort_arg_comparator cmp, void *arg);
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/* port/chklocale.c */
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extern int pg_get_encoding_from_locale(const char *ctype);
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#endif /* PG_PORT_H */