?? stadx.c
字號:
#include "stadx.h"
REGINT f_min(REGINT a, REGINT b)
{
return a>b?b:a;
}
VOID f_memcpy(BYTE* to, REGINT buflen, BYTE* from, REGINT limit, REGINT size)
{
REGINT n = f_min(size,f_min(buflen, limit));
memset(to, 0, size<buflen?size:buflen);
memcpy(to, from, n);
}
VOID f_cpname(BYTE* to, REGINT length, CHAR* value)
{
memset(to, 0, length);
if(strlen(value)+1 > length)
{ memcpy(to, value, length);
*(to+length-1) = 0;
}
else
strcpy(to, value);
}
Boolean f_Seek(REGINT fd, UINT32 offset)
{
if(lseek(fd, offset, SEEK_SET) < 0)
{
DBG_MSG("file seek error\n");
return False;
}
return True;
}
REGINT f_SeekRead(REGINT fd, BYTE* buffer, UINT32 offset, UINT32 size)
{
if( f_Seek(fd, offset) )
{
REGINT ret = read(fd, buffer, size);
if(ret < 0)
{
DBG_MSG("reading error\n");
}
return ret;
}
else
return -1;
}
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