crt: Provide emulation of _fstat32i64, _stat32i64 and _wstat32i64 functions Functions _fstat32i64 (alias of _fstati64), _stat32i64 (alias of _stati64) and _wstat32i64 (alias of _wstati64) are available since msvcrt40.dll. These functions returns 64-bit st_size and 32-bit file timestamps. For pre-msvcrt40 CRT import libraries provides mingw-w64 emulation of those functions via the _fstat64, _stat64 and _stat64 functions, which returns both st_size and file timestamps in 64-bit precision. When timestamp does not fit into the 32-bit field then sets field to invalid value -1. This is behavior of msvcrt functions with 32-bit time_t fields. Note that _fstat64, _stat64 and _stat64 functions are available in all CRT import libraries, in pre-msvcr70 CRT import libraries they are emulated. Signed-off-by: Martin Storsjö <martin@martin.st>
diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am index 02a857d..8a41cbb 100644 --- a/mingw-w64-crt/Makefile.am +++ b/mingw-w64-crt/Makefile.am
@@ -799,6 +799,9 @@ misc/_dstbias.c \ misc/dummy__setusermatherr.c \ stdio/_filelengthi64.c \ + stdio/_fstat32i64.c \ + stdio/_stat32i64.c \ + stdio/_wstat32i64.c \ stdio/fgetpos.c \ stdio/fsetpos.c
diff --git a/mingw-w64-crt/stdio/_fstat32i64.c b/mingw-w64-crt/stdio/_fstat32i64.c new file mode 100644 index 0000000..1bd63cd --- /dev/null +++ b/mingw-w64-crt/stdio/_fstat32i64.c
@@ -0,0 +1,42 @@ +/** + * This file has no copyright assigned and is placed in the Public Domain. + * This file is part of the mingw-w64 runtime package. + * No warranty is given; refer to the file DISCLAIMER.PD within this package. + */ + +#include <sys/stat.h> +#include <stdint.h> + +/* When the file time does not fit into the st_Xtime field: + * crtdll-msvcr71 msvcr80+ + * st_Xtime -1 -1 + * errno no change EINVAL + * returns 0 0 + * + * This file is used only for pre-msvcrt40 builds, + * So use the pre-msvcrt40 behavior - fills -1 without errno change. + */ +int __cdecl _fstat32i64(int _FileDes,struct _stat32i64 *_Stat) +{ + struct _stat64 st; + int ret=_fstat64(_FileDes,&st); + if (ret != 0) + return ret; + _Stat->st_dev=st.st_dev; + _Stat->st_ino=st.st_ino; + _Stat->st_mode=st.st_mode; + _Stat->st_nlink=st.st_nlink; + _Stat->st_uid=st.st_uid; + _Stat->st_gid=st.st_gid; + _Stat->st_rdev=st.st_rdev; + _Stat->st_size=st.st_size; + _Stat->st_atime=((st.st_atime > INT32_MAX) ? -1 : st.st_atime); + _Stat->st_mtime=((st.st_mtime > INT32_MAX) ? -1 : st.st_mtime); + _Stat->st_ctime=((st.st_ctime > INT32_MAX) ? -1 : st.st_ctime); + return 0; +} +int (__cdecl *__MINGW_IMP_SYMBOL(_fstat32i64))(int, struct _stat32i64 *) = _fstat32i64; + +#undef _fstati64 +int __attribute__ ((alias ("_fstat32i64"))) __cdecl _fstati64(int, struct _stat32i64 *); +extern int __attribute__ ((alias (__MINGW64_STRINGIFY(__MINGW_IMP_SYMBOL(_fstat32i64))))) (__cdecl *__MINGW_IMP_SYMBOL(_fstati64))(int, struct _stat32i64 *);
diff --git a/mingw-w64-crt/stdio/_stat32i64.c b/mingw-w64-crt/stdio/_stat32i64.c new file mode 100644 index 0000000..641f2f5 --- /dev/null +++ b/mingw-w64-crt/stdio/_stat32i64.c
@@ -0,0 +1,42 @@ +/** + * This file has no copyright assigned and is placed in the Public Domain. + * This file is part of the mingw-w64 runtime package. + * No warranty is given; refer to the file DISCLAIMER.PD within this package. + */ + +#include <sys/stat.h> +#include <stdint.h> + +/* When the file time does not fit into the st_Xtime field: + * crtdll-msvcr71 msvcr80+ + * st_Xtime -1 -1 + * errno no change EINVAL + * returns 0 0 + * + * This file is used only for pre-msvcrt40 builds, + * So use the pre-msvcrt40 behavior - fills -1 without errno change. + */ +int __cdecl _stat32i64(const char *_Name,struct _stat32i64 *_Stat) +{ + struct _stat64 st; + int ret=_stat64(_Name,&st); + if (ret != 0) + return ret; + _Stat->st_dev=st.st_dev; + _Stat->st_ino=st.st_ino; + _Stat->st_mode=st.st_mode; + _Stat->st_nlink=st.st_nlink; + _Stat->st_uid=st.st_uid; + _Stat->st_gid=st.st_gid; + _Stat->st_rdev=st.st_rdev; + _Stat->st_size=st.st_size; + _Stat->st_atime=((st.st_atime > INT32_MAX) ? -1 : st.st_atime); + _Stat->st_mtime=((st.st_mtime > INT32_MAX) ? -1 : st.st_mtime); + _Stat->st_ctime=((st.st_ctime > INT32_MAX) ? -1 : st.st_ctime); + return 0; +} +int (__cdecl *__MINGW_IMP_SYMBOL(_stat32i64))(const char *, struct _stat32i64 *) = _stat32i64; + +#undef _stati64 +int __attribute__ ((alias ("_stat32i64"))) __cdecl _stati64(const char *, struct _stat32i64 *); +extern int __attribute__ ((alias (__MINGW64_STRINGIFY(__MINGW_IMP_SYMBOL(_stat32i64))))) (__cdecl *__MINGW_IMP_SYMBOL(_stati64))(const char *, struct _stat32i64 *);
diff --git a/mingw-w64-crt/stdio/_wstat32i64.c b/mingw-w64-crt/stdio/_wstat32i64.c new file mode 100644 index 0000000..dab7600 --- /dev/null +++ b/mingw-w64-crt/stdio/_wstat32i64.c
@@ -0,0 +1,42 @@ +/** + * This file has no copyright assigned and is placed in the Public Domain. + * This file is part of the mingw-w64 runtime package. + * No warranty is given; refer to the file DISCLAIMER.PD within this package. + */ + +#include <sys/stat.h> +#include <stdint.h> + +/* When the file time does not fit into the st_Xtime field: + * crtdll-msvcr71 msvcr80+ + * st_Xtime -1 -1 + * errno no change EINVAL + * returns 0 0 + * + * This file is used only for pre-msvcrt40 builds, + * So use the pre-msvcrt40 behavior - fills -1 without errno change. + */ +int __cdecl _wstat32i64(const wchar_t *_Name,struct _stat32i64 *_Stat) +{ + struct _stat64 st; + int ret=_wstat64(_Name,&st); + if (ret != 0) + return ret; + _Stat->st_dev=st.st_dev; + _Stat->st_ino=st.st_ino; + _Stat->st_mode=st.st_mode; + _Stat->st_nlink=st.st_nlink; + _Stat->st_uid=st.st_uid; + _Stat->st_gid=st.st_gid; + _Stat->st_rdev=st.st_rdev; + _Stat->st_size=st.st_size; + _Stat->st_atime=((st.st_atime > INT32_MAX) ? -1 : st.st_atime); + _Stat->st_mtime=((st.st_mtime > INT32_MAX) ? -1 : st.st_mtime); + _Stat->st_ctime=((st.st_ctime > INT32_MAX) ? -1 : st.st_ctime); + return 0; +} +int (__cdecl *__MINGW_IMP_SYMBOL(_wstat32i64))(const wchar_t *, struct _stat32i64 *) = _wstat32i64; + +#undef _wstati64 +int __attribute__ ((alias ("_wstat32i64"))) __cdecl _wstati64(const wchar_t *, struct _stat32i64 *); +extern int __attribute__ ((alias (__MINGW64_STRINGIFY(__MINGW_IMP_SYMBOL(_wstat32i64))))) (__cdecl *__MINGW_IMP_SYMBOL(_wstati64))(const wchar_t *, struct _stat32i64 *);