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Check parameters for NULL and empty string. Workaround for MS VC _CRT exeptions

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This commit is contained in:
Stas Degteff 2011-02-22 09:36:32 +00:00
parent b00d33ed03
commit 91e68866fc
1 changed files with 76 additions and 0 deletions
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76
goldlib/gall/gfile.cpp
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@ -117,6 +117,11 @@ gfile::gfile(const char* __path, int __access, int __shflag, int __mode)
{
fh = -1;
fp = NULL;
if( !( __path && *__path ) )
{
status = EINVAL;
return;
}
Open(__path, __access, __shflag, __mode);
}
@ -126,6 +131,11 @@ gfile::gfile(const char* __path, const char* __mode, int __shflag)
{
fh = -1;
fp = NULL;
if( !( __path && *__path ) )
{
status = EINVAL;
return;
}
Fopen(__path, __mode, __shflag);
}
@ -167,6 +177,12 @@ FILE* gfile::setfp(FILE* __fp)
int gfile::Open(const char* __path, int __access, int __shflag, int __mode)
{
if( !( __path && *__path ) )
{
status = EINVAL;
return -1;
}
#if defined(_tsopen_s)
status = _tsopen_s(&fh, __path, __access, __shflag, __mode);
return fh;
@ -182,6 +198,11 @@ int gfile::Open(const char* __path, int __access, int __shflag, int __mode)
int gfile::Open(const char* __path, int __access, const char* __fmode, int __shflag, int __mode)
{
if( !(__path && *__path && __fmode && *__fmode) )
{
status = EINVAL;
return -1;
}
Open(__path, __access, __shflag, __mode);
Fdopen(__fmode);
return fh;
@ -203,6 +224,11 @@ int gfile::Close()
int gfile::Read(void* __ptr, size_t __len)
{
if( !__ptr )
{
status = EINVAL;
return -1;
}
int _ret = g_read(fh, __ptr, unsigned(__len));
status = (_ret == -1) ? errno : 0;
return _ret;
@ -212,6 +238,11 @@ int gfile::Read(void* __ptr, size_t __len)
int gfile::Write(const void* __ptr, size_t __len)
{
if( !__ptr )
{
status = EINVAL;
return -1;
}
int _ret = g_write(fh, __ptr, unsigned(__len));
status = (_ret == -1) ? errno : 0;
return _ret;
@ -289,6 +320,11 @@ int gfile::GetFTime(time32_t *__ftime)
FILE* gfile::Fopen(const char* __path, const char* __mode, int __shflag)
{
if( !(__path && *__path && __mode && *__mode) )
{
status = EINVAL;
return NULL;
}
fp = g_fsopen(__path, __mode, __shflag);
status = (fp == NULL) ? errno : 0;
if (fp) fh = g_fileno(fp);
@ -300,6 +336,11 @@ FILE* gfile::Fopen(const char* __path, const char* __mode, int __shflag)
FILE* gfile::Popen(const char* __path, const char* __mode)
{
if( !(__path && *__path && __mode && *__mode) )
{
status = EINVAL;
return NULL;
}
fp = g_popen(__path, __mode);
status = (fp == NULL) ? errno : 0;
if (fp) fh = g_fileno(fp);
@ -311,6 +352,11 @@ FILE* gfile::Popen(const char* __path, const char* __mode)
FILE* gfile::Fdopen(const char* __mode)
{
if( !(__mode) )
{
status = EINVAL;
return NULL;
}
fp = g_fdopen(fh, __mode);
status = fp ? 0 : errno;
if (fp) fh = g_fileno(fp);
@ -345,6 +391,11 @@ int gfile::Pclose()
size_t gfile::Fread(void* __ptr, size_t __size, size_t __items)
{
if( !(__ptr) )
{
status = EINVAL;
return 0;
}
size_t _ret = g_fread(__ptr, __size, __items, fp);
status = ferror_() ? errno : 0;
return _ret;
@ -355,6 +406,11 @@ size_t gfile::Fread(void* __ptr, size_t __size, size_t __items)
size_t gfile::Fwrite(const void* __ptr, size_t __size, size_t __items)
{
if( !(__ptr) )
{
status = EINVAL;
return 0;
}
size_t _ret = g_fwrite(__ptr, __size, __items, fp);
status = (_ret < __items) ? errno : 0;
return _ret;
@ -384,6 +440,11 @@ int gfile::Fputc(int __ch)
char* gfile::Fgets(char* __str, size_t __len)
{
if( !(__str) )
{
status = EINVAL;
return NULL;
}
char* _ret = g_fgets(__str, int(__len), fp);
status = (_ret == NULL) ? errno : 0;
return _ret;
@ -393,6 +454,11 @@ char* gfile::Fgets(char* __str, size_t __len)
int gfile::Fputs(const char* __str)
{
if( !(__str) )
{
status = EINVAL;
return -1;
}
int _ret = g_fputs(__str, fp);
status = (_ret == EOF) ? errno : 0;
return _ret;
@ -403,6 +469,11 @@ int gfile::Fputs(const char* __str)
int gfile::Printf(const char* __format, ...)
{
if( !(__format && *__format) )
{
status = EINVAL;
return -1;
}
va_list _argptr;
va_start(_argptr, __format);
int _outcount = vfprintf(fp, __format, _argptr);
@ -441,6 +512,11 @@ int gfile::Fseek(long __offset, int __direction)
int gfile::SetvBuf(char* __buf, int __type, size_t __size)
{
if( !(__buf && __size) )
{
status = EINVAL;
return -1;
}
int _ret = ::setvbuf(fp, __buf, __type, __size);
status = _ret ? errno : 0;
return _ret;