/* A GNU-like . Copyright (C) 2004, 2007-2021 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see . */ #if __GNUC__ >= 3 @PRAGMA_SYSTEM_HEADER@ #endif @PRAGMA_COLUMNS@ #if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H /* Special invocation convention: - Inside glibc header files. - On OSF/1 5.1 we have a sequence of nested includes -> -> -> -> -> -> -> . In this situation, the functions are not yet declared, therefore we cannot provide the C++ aliases. */ #@INCLUDE_NEXT@ @NEXT_STDIO_H@ #else /* Normal invocation convention. */ #ifndef _@GUARD_PREFIX@_STDIO_H #define _GL_ALREADY_INCLUDING_STDIO_H /* The include_next requires a split double-inclusion guard. */ #@INCLUDE_NEXT@ @NEXT_STDIO_H@ #undef _GL_ALREADY_INCLUDING_STDIO_H #ifndef _@GUARD_PREFIX@_STDIO_H #define _@GUARD_PREFIX@_STDIO_H /* Get va_list. Needed on many systems, including glibc 2.8. */ #include #include /* Get off_t and ssize_t. Needed on many systems, including glibc 2.8 and eglibc 2.11.2. May also define off_t to a 64-bit type on native Windows. */ #include /* The __attribute__ feature is available in gcc versions 2.5 and later. The __-protected variants of the attributes 'format' and 'printf' are accepted by gcc versions 2.6.4 (effectively 2.7) and later. We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because gnulib and libintl do '#define printf __printf__' when they override the 'printf' function. */ #ifndef _GL_ATTRIBUTE_FORMAT # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || defined __clang__ # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) # else # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */ # endif #endif /* An __attribute__ __format__ specifier for a function that takes a format string and arguments, where the format string directives are the ones standardized by ISO C99 and POSIX. _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD */ /* __gnu_printf__ is supported in GCC >= 4.4. */ #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __gnu_printf__ #else # define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__ #endif /* An __attribute__ __format__ specifier for a function that takes a format string and arguments, where the format string directives are the ones of the system printf(), rather than the ones standardized by ISO C99 and POSIX. _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM */ /* On mingw, Gnulib sets __USE_MINGW_ANSI_STDIO in order to get closer to the standards. The macro GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU indicates whether this change is effective. On older mingw, it is not. */ #if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD #else # define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM __printf__ #endif /* _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD indicates to GCC that the function takes a format string and arguments, where the format string directives are the ones standardized by ISO C99 and POSIX. */ #define _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(formatstring_parameter, first_argument) \ _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, formatstring_parameter, first_argument)) /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD, except that it indicates to GCC that the supported format string directives are the ones of the system printf(), rather than the ones standardized by ISO C99 and POSIX. */ #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \ _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, formatstring_parameter, first_argument)) /* _GL_ATTRIBUTE_FORMAT_SCANF indicates to GCC that the function takes a format string and arguments, where the format string directives are the ones standardized by ISO C99 and POSIX. */ #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \ _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument)) #else # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \ _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument)) #endif /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF, except that it indicates to GCC that the supported format string directives are the ones of the system scanf(), rather than the ones standardized by ISO C99 and POSIX. */ #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \ _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument)) /* Solaris 10 and NetBSD 7.0 declare renameat in , not in . */ /* But in any case avoid namespace pollution on glibc systems. */ #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && (defined __sun || defined __NetBSD__) \ && ! defined __GLIBC__ # include #endif /* Android 4.3 declares renameat in , not in . */ /* But in any case avoid namespace pollution on glibc systems. */ #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \ && ! defined __GLIBC__ # include #endif /* MSVC declares 'perror' in , not in . We must include it before we #define perror rpl_perror. */ /* But in any case avoid namespace pollution on glibc systems. */ #if (@GNULIB_PERROR@ || defined GNULIB_POSIXCHECK) \ && (defined _WIN32 && ! defined __CYGWIN__) \ && ! defined __GLIBC__ # include #endif /* MSVC declares 'remove' in , not in . We must include it before we #define remove rpl_remove. */ /* MSVC declares 'rename' in , not in . We must include it before we #define rename rpl_rename. */ /* But in any case avoid namespace pollution on glibc systems. */ #if (@GNULIB_REMOVE@ || @GNULIB_RENAME@ || defined GNULIB_POSIXCHECK) \ && (defined _WIN32 && ! defined __CYGWIN__) \ && ! defined __GLIBC__ # include #endif /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ /* The definition of _GL_ARG_NONNULL is copied here. */ /* The definition of _GL_WARN_ON_USE is copied here. */ /* Macros for stringification. */ #define _GL_STDIO_STRINGIZE(token) #token #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token) /* When also using extern inline, suppress the use of static inline in standard headers of problematic Apple configurations, as Libc at least through Libc-825.26 (2013-04-09) mishandles it; see, e.g., . Perhaps Apple will fix this some day. */ #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \ && defined __GNUC__ && defined __STDC__) # undef putc_unlocked #endif #if @GNULIB_DPRINTF@ # if @REPLACE_DPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define dprintf rpl_dprintf # endif _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *restrict format, ...)); # else # if !@HAVE_DPRINTF@ _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((2))); # endif _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *restrict format, ...)); # endif _GL_CXXALIASWARN (dprintf); #elif defined GNULIB_POSIXCHECK # undef dprintf # if HAVE_RAW_DECL_DPRINTF _GL_WARN_ON_USE (dprintf, "dprintf is unportable - " "use gnulib module dprintf for portability"); # endif #endif #if @GNULIB_FCLOSE@ /* Close STREAM and its underlying file descriptor. */ # if @REPLACE_FCLOSE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define fclose rpl_fclose # endif _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (fclose, int, (FILE *stream)); # else _GL_CXXALIAS_SYS (fclose, int, (FILE *stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fclose); # endif #elif defined GNULIB_POSIXCHECK # undef fclose /* Assume fclose is always declared. */ _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - " "use gnulib module fclose for portable POSIX compliance"); #endif #if @GNULIB_MDA_FCLOSEALL@ /* On native Windows, map 'fcloseall' to '_fcloseall', so that -loldnames is not required. In C++ with GNULIB_NAMESPACE, avoid differences between platforms by defining GNULIB_NAMESPACE::fcloseall on all platforms that have it. */ # if defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fcloseall # define fcloseall _fcloseall # endif _GL_CXXALIAS_MDA (fcloseall, int, (void)); # else # if @HAVE_DECL_FCLOSEALL@ # if defined __FreeBSD__ || defined __DragonFly__ _GL_CXXALIAS_SYS (fcloseall, void, (void)); # else _GL_CXXALIAS_SYS (fcloseall, int, (void)); # endif # endif # endif # if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCLOSEALL@ _GL_CXXALIASWARN (fcloseall); # endif #endif #if @GNULIB_FDOPEN@ # if @REPLACE_FDOPEN@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fdopen # define fdopen rpl_fdopen # endif _GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode)); # elif defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fdopen # define fdopen _fdopen # endif _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode)); # else _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode)); # endif _GL_CXXALIASWARN (fdopen); #elif defined GNULIB_POSIXCHECK # undef fdopen /* Assume fdopen is always declared. */ _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - " "use gnulib module fdopen for portability"); #elif @GNULIB_MDA_FDOPEN@ /* On native Windows, map 'fdopen' to '_fdopen', so that -loldnames is not required. In C++ with GNULIB_NAMESPACE, avoid differences between platforms by defining GNULIB_NAMESPACE::fdopen always. */ # if defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fdopen # define fdopen _fdopen # endif _GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode)); # else _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode)); # endif _GL_CXXALIASWARN (fdopen); #endif #if @GNULIB_FFLUSH@ /* Flush all pending data on STREAM according to POSIX rules. Both output and seekable input streams are supported. Note! LOSS OF DATA can occur if fflush is applied on an input stream that is _not_seekable_ or on an update stream that is _not_seekable_ and in which the most recent operation was input. Seekability can be tested with lseek(fileno(fp),0,SEEK_CUR). */ # if @REPLACE_FFLUSH@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define fflush rpl_fflush # endif _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream)); _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream)); # else _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fflush); # endif #elif defined GNULIB_POSIXCHECK # undef fflush /* Assume fflush is always declared. */ _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - " "use gnulib module fflush for portable POSIX compliance"); #endif #if @GNULIB_FGETC@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fgetc # define fgetc rpl_fgetc # endif _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream)); # else _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fgetc); # endif #endif #if @GNULIB_FGETS@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fgets # define fgets rpl_fgets # endif _GL_FUNCDECL_RPL (fgets, char *, (char *restrict s, int n, FILE *restrict stream) _GL_ARG_NONNULL ((1, 3))); _GL_CXXALIAS_RPL (fgets, char *, (char *restrict s, int n, FILE *restrict stream)); # else _GL_CXXALIAS_SYS (fgets, char *, (char *restrict s, int n, FILE *restrict stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fgets); # endif #endif #if @GNULIB_MDA_FILENO@ /* On native Windows, map 'fileno' to '_fileno', so that -loldnames is not required. In C++ with GNULIB_NAMESPACE, avoid differences between platforms by defining GNULIB_NAMESPACE::fileno always. */ # if defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fileno # define fileno _fileno # endif _GL_CXXALIAS_MDA (fileno, int, (FILE *restrict stream)); # else _GL_CXXALIAS_SYS (fileno, int, (FILE *restrict stream)); # endif _GL_CXXALIASWARN (fileno); #endif #if @GNULIB_FOPEN@ # if @REPLACE_FOPEN@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fopen # define fopen rpl_fopen # endif _GL_FUNCDECL_RPL (fopen, FILE *, (const char *restrict filename, const char *restrict mode) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (fopen, FILE *, (const char *restrict filename, const char *restrict mode)); # else _GL_CXXALIAS_SYS (fopen, FILE *, (const char *restrict filename, const char *restrict mode)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fopen); # endif #elif defined GNULIB_POSIXCHECK # undef fopen /* Assume fopen is always declared. */ _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - " "use gnulib module fopen for portability"); #endif #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@ # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \ || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define fprintf rpl_fprintf # endif # define GNULIB_overrides_fprintf 1 # if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@ _GL_FUNCDECL_RPL (fprintf, int, (FILE *restrict fp, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); # else _GL_FUNCDECL_RPL (fprintf, int, (FILE *restrict fp, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_RPL (fprintf, int, (FILE *restrict fp, const char *restrict format, ...)); # else _GL_CXXALIAS_SYS (fprintf, int, (FILE *restrict fp, const char *restrict format, ...)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fprintf); # endif #endif #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK # if !GNULIB_overrides_fprintf # undef fprintf # endif /* Assume fprintf is always declared. */ _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - " "use gnulib module fprintf-posix for portable " "POSIX compliance"); #endif #if @GNULIB_FPURGE@ /* Discard all pending buffered I/O data on STREAM. STREAM must not be wide-character oriented. When discarding pending output, the file position is set back to where it was before the write calls. When discarding pending input, the file position is advanced to match the end of the previously read input. Return 0 if successful. Upon error, return -1 and set errno. */ # if @REPLACE_FPURGE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define fpurge rpl_fpurge # endif _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream)); # else # if !@HAVE_DECL_FPURGE@ _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream)); # endif _GL_CXXALIASWARN (fpurge); #elif defined GNULIB_POSIXCHECK # undef fpurge # if HAVE_RAW_DECL_FPURGE _GL_WARN_ON_USE (fpurge, "fpurge is not always present - " "use gnulib module fpurge for portability"); # endif #endif #if @GNULIB_FPUTC@ # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fputc # define fputc rpl_fputc # endif _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream)); # else _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fputc); # endif #endif #if @GNULIB_FPUTS@ # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fputs # define fputs rpl_fputs # endif _GL_FUNCDECL_RPL (fputs, int, (const char *restrict string, FILE *restrict stream) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (fputs, int, (const char *restrict string, FILE *restrict stream)); # else _GL_CXXALIAS_SYS (fputs, int, (const char *restrict string, FILE *restrict stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fputs); # endif #endif #if @GNULIB_FREAD@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fread # define fread rpl_fread # endif _GL_FUNCDECL_RPL (fread, size_t, (void *restrict ptr, size_t s, size_t n, FILE *restrict stream) _GL_ARG_NONNULL ((4))); _GL_CXXALIAS_RPL (fread, size_t, (void *restrict ptr, size_t s, size_t n, FILE *restrict stream)); # else _GL_CXXALIAS_SYS (fread, size_t, (void *restrict ptr, size_t s, size_t n, FILE *restrict stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fread); # endif #endif #if @GNULIB_FREOPEN@ # if @REPLACE_FREOPEN@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef freopen # define freopen rpl_freopen # endif _GL_FUNCDECL_RPL (freopen, FILE *, (const char *restrict filename, const char *restrict mode, FILE *restrict stream) _GL_ARG_NONNULL ((2, 3))); _GL_CXXALIAS_RPL (freopen, FILE *, (const char *restrict filename, const char *restrict mode, FILE *restrict stream)); # else _GL_CXXALIAS_SYS (freopen, FILE *, (const char *restrict filename, const char *restrict mode, FILE *restrict stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (freopen); # endif #elif defined GNULIB_POSIXCHECK # undef freopen /* Assume freopen is always declared. */ _GL_WARN_ON_USE (freopen, "freopen on native Windows platforms is not POSIX compliant - " "use gnulib module freopen for portability"); #endif #if @GNULIB_FSCANF@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fscanf # define fscanf rpl_fscanf # endif _GL_FUNCDECL_RPL (fscanf, int, (FILE *restrict stream, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (fscanf, int, (FILE *restrict stream, const char *restrict format, ...)); # else _GL_CXXALIAS_SYS (fscanf, int, (FILE *restrict stream, const char *restrict format, ...)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fscanf); # endif #endif /* Set up the following warnings, based on which modules are in use. GNU Coding Standards discourage the use of fseek, since it imposes an arbitrary limitation on some 32-bit hosts. Remember that the fseek module depends on the fseeko module, so we only have three cases to consider: 1. The developer is not using either module. Issue a warning under GNULIB_POSIXCHECK for both functions, to remind them that both functions have bugs on some systems. _GL_NO_LARGE_FILES has no impact on this warning. 2. The developer is using both modules. They may be unaware of the arbitrary limitations of fseek, so issue a warning under GNULIB_POSIXCHECK. On the other hand, they may be using both modules intentionally, so the developer can define _GL_NO_LARGE_FILES in the compilation units where the use of fseek is safe, to silence the warning. 3. The developer is using the fseeko module, but not fseek. Gnulib guarantees that fseek will still work around platform bugs in that case, but we presume that the developer is aware of the pitfalls of fseek and was trying to avoid it, so issue a warning even when GNULIB_POSIXCHECK is undefined. Again, _GL_NO_LARGE_FILES can be defined to silence the warning in particular compilation units. In C++ compilations with GNULIB_NAMESPACE, in order to avoid that fseek gets defined as a macro, it is recommended that the developer uses the fseek module, even if he is not calling the fseek function. Most gnulib clients that perform stream operations should fall into category 3. */ #if @GNULIB_FSEEK@ # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES # define _GL_FSEEK_WARN /* Category 2, above. */ # undef fseek # endif # if @REPLACE_FSEEK@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fseek # define fseek rpl_fseek # endif _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence)); # else _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fseek); # endif #endif #if @GNULIB_FSEEKO@ # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES # define _GL_FSEEK_WARN /* Category 3, above. */ # undef fseek # endif # if @REPLACE_FSEEKO@ /* Provide an fseeko function that is aware of a preceding fflush(), and which detects pipes. */ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fseeko # define fseeko rpl_fseeko # endif _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)); # else # if ! @HAVE_DECL_FSEEKO@ _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence) _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)); # endif _GL_CXXALIASWARN (fseeko); #elif defined GNULIB_POSIXCHECK # define _GL_FSEEK_WARN /* Category 1, above. */ # undef fseek # undef fseeko # if HAVE_RAW_DECL_FSEEKO _GL_WARN_ON_USE (fseeko, "fseeko is unportable - " "use gnulib module fseeko for portability"); # endif #endif #ifdef _GL_FSEEK_WARN # undef _GL_FSEEK_WARN /* Here, either fseek is undefined (but C89 guarantees that it is declared), or it is defined as rpl_fseek (declared above). */ _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB " "on 32-bit platforms - " "use fseeko function for handling of large files"); #endif /* ftell, ftello. See the comments on fseek/fseeko. */ #if @GNULIB_FTELL@ # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES # define _GL_FTELL_WARN /* Category 2, above. */ # undef ftell # endif # if @REPLACE_FTELL@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef ftell # define ftell rpl_ftell # endif _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (ftell, long, (FILE *fp)); # else _GL_CXXALIAS_SYS (ftell, long, (FILE *fp)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (ftell); # endif #endif #if @GNULIB_FTELLO@ # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES # define _GL_FTELL_WARN /* Category 3, above. */ # undef ftell # endif # if @REPLACE_FTELLO@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef ftello # define ftello rpl_ftello # endif _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp)); # else # if ! @HAVE_DECL_FTELLO@ _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp)); # endif _GL_CXXALIASWARN (ftello); #elif defined GNULIB_POSIXCHECK # define _GL_FTELL_WARN /* Category 1, above. */ # undef ftell # undef ftello # if HAVE_RAW_DECL_FTELLO _GL_WARN_ON_USE (ftello, "ftello is unportable - " "use gnulib module ftello for portability"); # endif #endif #ifdef _GL_FTELL_WARN # undef _GL_FTELL_WARN /* Here, either ftell is undefined (but C89 guarantees that it is declared), or it is defined as rpl_ftell (declared above). */ _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB " "on 32-bit platforms - " "use ftello function for handling of large files"); #endif #if @GNULIB_FWRITE@ # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef fwrite # define fwrite rpl_fwrite # endif _GL_FUNCDECL_RPL (fwrite, size_t, (const void *restrict ptr, size_t s, size_t n, FILE *restrict stream) _GL_ARG_NONNULL ((1, 4))); _GL_CXXALIAS_RPL (fwrite, size_t, (const void *restrict ptr, size_t s, size_t n, FILE *restrict stream)); # else _GL_CXXALIAS_SYS (fwrite, size_t, (const void *restrict ptr, size_t s, size_t n, FILE *restrict stream)); /* Work around bug 11959 when fortifying glibc 2.4 through 2.15 , which sometimes causes an unwanted diagnostic for fwrite calls. This affects only function declaration attributes under certain versions of gcc and clang, and is not needed for C++. */ # if (0 < __USE_FORTIFY_LEVEL \ && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \ && 3 < __GNUC__ + (4 <= __GNUC_MINOR__) \ && !defined __cplusplus) # undef fwrite # undef fwrite_unlocked extern size_t __REDIRECT (rpl_fwrite, (const void *__restrict, size_t, size_t, FILE *__restrict), fwrite); extern size_t __REDIRECT (rpl_fwrite_unlocked, (const void *__restrict, size_t, size_t, FILE *__restrict), fwrite_unlocked); # define fwrite rpl_fwrite # define fwrite_unlocked rpl_fwrite_unlocked # endif # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (fwrite); # endif #endif #if @GNULIB_GETC@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef getc # define getc rpl_fgetc # endif _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream)); # else _GL_CXXALIAS_SYS (getc, int, (FILE *stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (getc); # endif #endif #if @GNULIB_GETCHAR@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef getchar # define getchar rpl_getchar # endif _GL_FUNCDECL_RPL (getchar, int, (void)); _GL_CXXALIAS_RPL (getchar, int, (void)); # else _GL_CXXALIAS_SYS (getchar, int, (void)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (getchar); # endif #endif #if @GNULIB_GETDELIM@ /* Read input, up to (and including) the next occurrence of DELIMITER, from STREAM, store it in *LINEPTR (and NUL-terminate it). *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE bytes of space. It is realloc'd as necessary. Return the number of bytes read and stored at *LINEPTR (not including the NUL terminator), or -1 on error or EOF. */ # if @REPLACE_GETDELIM@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef getdelim # define getdelim rpl_getdelim # endif _GL_FUNCDECL_RPL (getdelim, ssize_t, (char **restrict lineptr, size_t *restrict linesize, int delimiter, FILE *restrict stream) _GL_ARG_NONNULL ((1, 2, 4))); _GL_CXXALIAS_RPL (getdelim, ssize_t, (char **restrict lineptr, size_t *restrict linesize, int delimiter, FILE *restrict stream)); # else # if !@HAVE_DECL_GETDELIM@ _GL_FUNCDECL_SYS (getdelim, ssize_t, (char **restrict lineptr, size_t *restrict linesize, int delimiter, FILE *restrict stream) _GL_ARG_NONNULL ((1, 2, 4))); # endif _GL_CXXALIAS_SYS (getdelim, ssize_t, (char **restrict lineptr, size_t *restrict linesize, int delimiter, FILE *restrict stream)); # endif _GL_CXXALIASWARN (getdelim); #elif defined GNULIB_POSIXCHECK # undef getdelim # if HAVE_RAW_DECL_GETDELIM _GL_WARN_ON_USE (getdelim, "getdelim is unportable - " "use gnulib module getdelim for portability"); # endif #endif #if @GNULIB_GETLINE@ /* Read a line, up to (and including) the next newline, from STREAM, store it in *LINEPTR (and NUL-terminate it). *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE bytes of space. It is realloc'd as necessary. Return the number of bytes read and stored at *LINEPTR (not including the NUL terminator), or -1 on error or EOF. */ # if @REPLACE_GETLINE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef getline # define getline rpl_getline # endif _GL_FUNCDECL_RPL (getline, ssize_t, (char **restrict lineptr, size_t *restrict linesize, FILE *restrict stream) _GL_ARG_NONNULL ((1, 2, 3))); _GL_CXXALIAS_RPL (getline, ssize_t, (char **restrict lineptr, size_t *restrict linesize, FILE *restrict stream)); # else # if !@HAVE_DECL_GETLINE@ _GL_FUNCDECL_SYS (getline, ssize_t, (char **restrict lineptr, size_t *restrict linesize, FILE *restrict stream) _GL_ARG_NONNULL ((1, 2, 3))); # endif _GL_CXXALIAS_SYS (getline, ssize_t, (char **restrict lineptr, size_t *restrict linesize, FILE *restrict stream)); # endif # if @HAVE_DECL_GETLINE@ _GL_CXXALIASWARN (getline); # endif #elif defined GNULIB_POSIXCHECK # undef getline # if HAVE_RAW_DECL_GETLINE _GL_WARN_ON_USE (getline, "getline is unportable - " "use gnulib module getline for portability"); # endif #endif /* It is very rare that the developer ever has full control of stdin, so any use of gets warrants an unconditional warning; besides, C11 removed it. */ #undef gets #if HAVE_RAW_DECL_GETS && !defined __cplusplus _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead"); #endif #if @GNULIB_MDA_GETW@ /* On native Windows, map 'getw' to '_getw', so that -loldnames is not required. In C++ with GNULIB_NAMESPACE, avoid differences between platforms by defining GNULIB_NAMESPACE::getw always. */ # if defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef getw # define getw _getw # endif _GL_CXXALIAS_MDA (getw, int, (FILE *restrict stream)); # else _GL_CXXALIAS_SYS (getw, int, (FILE *restrict stream)); # endif _GL_CXXALIASWARN (getw); #endif #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@ struct obstack; /* Grow an obstack with formatted output. Return the number of bytes added to OBS. No trailing nul byte is added, and the object should be closed with obstack_finish before use. Upon memory allocation error, call obstack_alloc_failed_handler. Upon other error, return -1. */ # if @REPLACE_OBSTACK_PRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define obstack_printf rpl_obstack_printf # endif _GL_FUNCDECL_RPL (obstack_printf, int, (struct obstack *obs, const char *format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (obstack_printf, int, (struct obstack *obs, const char *format, ...)); # else # if !@HAVE_DECL_OBSTACK_PRINTF@ _GL_FUNCDECL_SYS (obstack_printf, int, (struct obstack *obs, const char *format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (obstack_printf, int, (struct obstack *obs, const char *format, ...)); # endif _GL_CXXALIASWARN (obstack_printf); # if @REPLACE_OBSTACK_PRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define obstack_vprintf rpl_obstack_vprintf # endif _GL_FUNCDECL_RPL (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args)); # else # if !@HAVE_DECL_OBSTACK_PRINTF@ _GL_FUNCDECL_SYS (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args)); # endif _GL_CXXALIASWARN (obstack_vprintf); #endif #if @GNULIB_PCLOSE@ # if !@HAVE_PCLOSE@ _GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_SYS (pclose, int, (FILE *stream)); _GL_CXXALIASWARN (pclose); #elif defined GNULIB_POSIXCHECK # undef pclose # if HAVE_RAW_DECL_PCLOSE _GL_WARN_ON_USE (pclose, "pclose is unportable - " "use gnulib module pclose for more portability"); # endif #endif #if @GNULIB_PERROR@ /* Print a message to standard error, describing the value of ERRNO, (if STRING is not NULL and not empty) prefixed with STRING and ": ", and terminated with a newline. */ # if @REPLACE_PERROR@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define perror rpl_perror # endif _GL_FUNCDECL_RPL (perror, void, (const char *string)); _GL_CXXALIAS_RPL (perror, void, (const char *string)); # else _GL_CXXALIAS_SYS (perror, void, (const char *string)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (perror); # endif #elif defined GNULIB_POSIXCHECK # undef perror /* Assume perror is always declared. */ _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - " "use gnulib module perror for portability"); #endif #if @GNULIB_POPEN@ # if @REPLACE_POPEN@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef popen # define popen rpl_popen # endif _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode)); # else # if !@HAVE_POPEN@ _GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode)); # endif _GL_CXXALIASWARN (popen); #elif defined GNULIB_POSIXCHECK # undef popen # if HAVE_RAW_DECL_POPEN _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - " "use gnulib module popen or pipe for more portability"); # endif #endif #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@ # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \ || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)) # if defined __GNUC__ || defined __clang__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) /* Don't break __attribute__((format(printf,M,N))). */ # define printf __printf__ # endif # if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@ _GL_FUNCDECL_RPL_1 (__printf__, int, (const char *restrict format, ...) __asm__ (@ASM_SYMBOL_PREFIX@ _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf)) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2) _GL_ARG_NONNULL ((1))); # else _GL_FUNCDECL_RPL_1 (__printf__, int, (const char *restrict format, ...) __asm__ (@ASM_SYMBOL_PREFIX@ _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf)) _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2) _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...)); # else # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define printf rpl_printf # endif _GL_FUNCDECL_RPL (printf, int, (const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (printf, int, (const char *restrict format, ...)); # endif # define GNULIB_overrides_printf 1 # else _GL_CXXALIAS_SYS (printf, int, (const char *restrict format, ...)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (printf); # endif #endif #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK # if !GNULIB_overrides_printf # undef printf # endif /* Assume printf is always declared. */ _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - " "use gnulib module printf-posix for portable " "POSIX compliance"); #endif #if @GNULIB_PUTC@ # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef putc # define putc rpl_fputc # endif _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream)); # else _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (putc); # endif #endif #if @GNULIB_PUTCHAR@ # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef putchar # define putchar rpl_putchar # endif _GL_FUNCDECL_RPL (putchar, int, (int c)); _GL_CXXALIAS_RPL (putchar, int, (int c)); # else _GL_CXXALIAS_SYS (putchar, int, (int c)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (putchar); # endif #endif #if @GNULIB_PUTS@ # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef puts # define puts rpl_puts # endif _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (puts, int, (const char *string)); # else _GL_CXXALIAS_SYS (puts, int, (const char *string)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (puts); # endif #endif #if @GNULIB_MDA_PUTW@ /* On native Windows, map 'putw' to '_putw', so that -loldnames is not required. In C++ with GNULIB_NAMESPACE, avoid differences between platforms by defining GNULIB_NAMESPACE::putw always. */ # if defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef putw # define putw _putw # endif _GL_CXXALIAS_MDA (putw, int, (int w, FILE *restrict stream)); # else _GL_CXXALIAS_SYS (putw, int, (int w, FILE *restrict stream)); # endif _GL_CXXALIASWARN (putw); #endif #if @GNULIB_REMOVE@ # if @REPLACE_REMOVE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef remove # define remove rpl_remove # endif _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (remove, int, (const char *name)); # else _GL_CXXALIAS_SYS (remove, int, (const char *name)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (remove); # endif #elif defined GNULIB_POSIXCHECK # undef remove /* Assume remove is always declared. */ _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - " "use gnulib module remove for more portability"); #endif #if @GNULIB_RENAME@ # if @REPLACE_RENAME@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef rename # define rename rpl_rename # endif _GL_FUNCDECL_RPL (rename, int, (const char *old_filename, const char *new_filename) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (rename, int, (const char *old_filename, const char *new_filename)); # else _GL_CXXALIAS_SYS (rename, int, (const char *old_filename, const char *new_filename)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (rename); # endif #elif defined GNULIB_POSIXCHECK # undef rename /* Assume rename is always declared. */ _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - " "use gnulib module rename for more portability"); #endif #if @GNULIB_RENAMEAT@ # if @REPLACE_RENAMEAT@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef renameat # define renameat rpl_renameat # endif _GL_FUNCDECL_RPL (renameat, int, (int fd1, char const *file1, int fd2, char const *file2) _GL_ARG_NONNULL ((2, 4))); _GL_CXXALIAS_RPL (renameat, int, (int fd1, char const *file1, int fd2, char const *file2)); # else # if !@HAVE_RENAMEAT@ _GL_FUNCDECL_SYS (renameat, int, (int fd1, char const *file1, int fd2, char const *file2) _GL_ARG_NONNULL ((2, 4))); # endif _GL_CXXALIAS_SYS (renameat, int, (int fd1, char const *file1, int fd2, char const *file2)); # endif _GL_CXXALIASWARN (renameat); #elif defined GNULIB_POSIXCHECK # undef renameat # if HAVE_RAW_DECL_RENAMEAT _GL_WARN_ON_USE (renameat, "renameat is not portable - " "use gnulib module renameat for portability"); # endif #endif #if @GNULIB_SCANF@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if defined __GNUC__ || defined __clang__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef scanf /* Don't break __attribute__((format(scanf,M,N))). */ # define scanf __scanf__ # endif _GL_FUNCDECL_RPL_1 (__scanf__, int, (const char *restrict format, ...) __asm__ (@ASM_SYMBOL_PREFIX@ _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf)) _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *restrict format, ...)); # else # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef scanf # define scanf rpl_scanf # endif _GL_FUNCDECL_RPL (scanf, int, (const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (scanf, int, (const char *restrict format, ...)); # endif # else _GL_CXXALIAS_SYS (scanf, int, (const char *restrict format, ...)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (scanf); # endif #endif #if @GNULIB_SNPRINTF@ # if @REPLACE_SNPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define snprintf rpl_snprintf # endif _GL_FUNCDECL_RPL (snprintf, int, (char *restrict str, size_t size, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4) _GL_ARG_NONNULL ((3))); _GL_CXXALIAS_RPL (snprintf, int, (char *restrict str, size_t size, const char *restrict format, ...)); # else # if !@HAVE_DECL_SNPRINTF@ _GL_FUNCDECL_SYS (snprintf, int, (char *restrict str, size_t size, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4) _GL_ARG_NONNULL ((3))); # endif _GL_CXXALIAS_SYS (snprintf, int, (char *restrict str, size_t size, const char *restrict format, ...)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (snprintf); # endif #elif defined GNULIB_POSIXCHECK # undef snprintf # if HAVE_RAW_DECL_SNPRINTF _GL_WARN_ON_USE (snprintf, "snprintf is unportable - " "use gnulib module snprintf for portability"); # endif #endif /* Some people would argue that all sprintf uses should be warned about (for example, OpenBSD issues a link warning for it), since it can cause security holes due to buffer overruns. However, we believe that sprintf can be used safely, and is more efficient than snprintf in those safe cases; and as proof of our belief, we use sprintf in several gnulib modules. So this header intentionally avoids adding a warning to sprintf except when GNULIB_POSIXCHECK is defined. */ #if @GNULIB_SPRINTF_POSIX@ # if @REPLACE_SPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define sprintf rpl_sprintf # endif _GL_FUNCDECL_RPL (sprintf, int, (char *restrict str, const char *restrict format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (sprintf, int, (char *restrict str, const char *restrict format, ...)); # else _GL_CXXALIAS_SYS (sprintf, int, (char *restrict str, const char *restrict format, ...)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (sprintf); # endif #elif defined GNULIB_POSIXCHECK # undef sprintf /* Assume sprintf is always declared. */ _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - " "use gnulib module sprintf-posix for portable " "POSIX compliance"); #endif #if @GNULIB_MDA_TEMPNAM@ /* On native Windows, map 'tempnam' to '_tempnam', so that -loldnames is not required. In C++ with GNULIB_NAMESPACE, avoid differences between platforms by defining GNULIB_NAMESPACE::tempnam always. */ # if defined _WIN32 && !defined __CYGWIN__ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef tempnam # define tempnam _tempnam # endif _GL_CXXALIAS_MDA (tempnam, char *, (const char *dir, const char *prefix)); # else _GL_CXXALIAS_SYS (tempnam, char *, (const char *dir, const char *prefix)); # endif _GL_CXXALIASWARN (tempnam); #endif #if @GNULIB_TMPFILE@ # if @REPLACE_TMPFILE@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define tmpfile rpl_tmpfile # endif _GL_FUNCDECL_RPL (tmpfile, FILE *, (void)); _GL_CXXALIAS_RPL (tmpfile, FILE *, (void)); # else _GL_CXXALIAS_SYS (tmpfile, FILE *, (void)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (tmpfile); # endif #elif defined GNULIB_POSIXCHECK # undef tmpfile # if HAVE_RAW_DECL_TMPFILE _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - " "use gnulib module tmpfile for portability"); # endif #endif #if @GNULIB_VASPRINTF@ /* Write formatted output to a string dynamically allocated with malloc(). If the memory allocation succeeds, store the address of the string in *RESULT and return the number of resulting bytes, excluding the trailing NUL. Upon memory allocation error, or some other error, return -1. */ # if @REPLACE_VASPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define asprintf rpl_asprintf # endif _GL_FUNCDECL_RPL (asprintf, int, (char **result, const char *format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (asprintf, int, (char **result, const char *format, ...)); # else # if !@HAVE_VASPRINTF@ _GL_FUNCDECL_SYS (asprintf, int, (char **result, const char *format, ...) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (asprintf, int, (char **result, const char *format, ...)); # endif _GL_CXXALIASWARN (asprintf); # if @REPLACE_VASPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define vasprintf rpl_vasprintf # endif _GL_FUNCDECL_RPL (vasprintf, int, (char **result, const char *format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (vasprintf, int, (char **result, const char *format, va_list args)); # else # if !@HAVE_VASPRINTF@ _GL_FUNCDECL_SYS (vasprintf, int, (char **result, const char *format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (vasprintf, int, (char **result, const char *format, va_list args)); # endif _GL_CXXALIASWARN (vasprintf); #endif #if @GNULIB_VDPRINTF@ # if @REPLACE_VDPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define vdprintf rpl_vdprintf # endif _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *restrict format, va_list args)); # else # if !@HAVE_VDPRINTF@ _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((2))); # endif /* Need to cast, because on Solaris, the third parameter will likely be __va_list args. */ _GL_CXXALIAS_SYS_CAST (vdprintf, int, (int fd, const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vdprintf); # endif #elif defined GNULIB_POSIXCHECK # undef vdprintf # if HAVE_RAW_DECL_VDPRINTF _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - " "use gnulib module vdprintf for portability"); # endif #endif #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@ # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \ || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define vfprintf rpl_vfprintf # endif # define GNULIB_overrides_vfprintf 1 # if @GNULIB_VFPRINTF_POSIX@ _GL_FUNCDECL_RPL (vfprintf, int, (FILE *restrict fp, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); # else _GL_FUNCDECL_RPL (vfprintf, int, (FILE *restrict fp, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_RPL (vfprintf, int, (FILE *restrict fp, const char *restrict format, va_list args)); # else /* Need to cast, because on Solaris, the third parameter is __va_list args and GCC's fixincludes did not change this to __gnuc_va_list. */ _GL_CXXALIAS_SYS_CAST (vfprintf, int, (FILE *restrict fp, const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vfprintf); # endif #endif #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK # if !GNULIB_overrides_vfprintf # undef vfprintf # endif /* Assume vfprintf is always declared. */ _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - " "use gnulib module vfprintf-posix for portable " "POSIX compliance"); #endif #if @GNULIB_VFSCANF@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef vfscanf # define vfscanf rpl_vfscanf # endif _GL_FUNCDECL_RPL (vfscanf, int, (FILE *restrict stream, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (vfscanf, int, (FILE *restrict stream, const char *restrict format, va_list args)); # else _GL_CXXALIAS_SYS (vfscanf, int, (FILE *restrict stream, const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vfscanf); # endif #endif #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@ # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \ || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)) # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define vprintf rpl_vprintf # endif # define GNULIB_overrides_vprintf 1 # if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@ _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 0) _GL_ARG_NONNULL ((1))); # else _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0) _GL_ARG_NONNULL ((1))); # endif _GL_CXXALIAS_RPL (vprintf, int, (const char *restrict format, va_list args)); # else /* Need to cast, because on Solaris, the second parameter is __va_list args and GCC's fixincludes did not change this to __gnuc_va_list. */ _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vprintf); # endif #endif #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK # if !GNULIB_overrides_vprintf # undef vprintf # endif /* Assume vprintf is always declared. */ _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - " "use gnulib module vprintf-posix for portable " "POSIX compliance"); #endif #if @GNULIB_VSCANF@ # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef vscanf # define vscanf rpl_vscanf # endif _GL_FUNCDECL_RPL (vscanf, int, (const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (vscanf, int, (const char *restrict format, va_list args)); # else _GL_CXXALIAS_SYS (vscanf, int, (const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vscanf); # endif #endif #if @GNULIB_VSNPRINTF@ # if @REPLACE_VSNPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define vsnprintf rpl_vsnprintf # endif _GL_FUNCDECL_RPL (vsnprintf, int, (char *restrict str, size_t size, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0) _GL_ARG_NONNULL ((3))); _GL_CXXALIAS_RPL (vsnprintf, int, (char *restrict str, size_t size, const char *restrict format, va_list args)); # else # if !@HAVE_DECL_VSNPRINTF@ _GL_FUNCDECL_SYS (vsnprintf, int, (char *restrict str, size_t size, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0) _GL_ARG_NONNULL ((3))); # endif _GL_CXXALIAS_SYS (vsnprintf, int, (char *restrict str, size_t size, const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vsnprintf); # endif #elif defined GNULIB_POSIXCHECK # undef vsnprintf # if HAVE_RAW_DECL_VSNPRINTF _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - " "use gnulib module vsnprintf for portability"); # endif #endif #if @GNULIB_VSPRINTF_POSIX@ # if @REPLACE_VSPRINTF@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define vsprintf rpl_vsprintf # endif _GL_FUNCDECL_RPL (vsprintf, int, (char *restrict str, const char *restrict format, va_list args) _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (vsprintf, int, (char *restrict str, const char *restrict format, va_list args)); # else /* Need to cast, because on Solaris, the third parameter is __va_list args and GCC's fixincludes did not change this to __gnuc_va_list. */ _GL_CXXALIAS_SYS_CAST (vsprintf, int, (char *restrict str, const char *restrict format, va_list args)); # endif # if __GLIBC__ >= 2 _GL_CXXALIASWARN (vsprintf); # endif #elif defined GNULIB_POSIXCHECK # undef vsprintf /* Assume vsprintf is always declared. */ _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - " "use gnulib module vsprintf-posix for portable " "POSIX compliance"); #endif #endif /* _@GUARD_PREFIX@_STDIO_H */ #endif /* _@GUARD_PREFIX@_STDIO_H */ #endif