I rewrite those string functions that are required in my application, eg for strtok, I wrote something simple and just frugal enough to do my job.
argv[0] = strtok(buffer, " ");
change to below function
// Copies a string up to the given delimeter or if NULL terminator
// is found in the Source string.
UINT8 strcpy_delimeter(char *Dest, char *Source, UINT8 Max, char Delimiter, BOOL* pParsed)
{
UINT8 i, length=0;
BOOL bParsed = FALSE;
for(i=0; i<Max; i++)
{
if(Source == Delimiter || Source == 0)
{
Dest=0;
if(Source == Delimiter)
bParsed = TRUE;
break;
}
else
{
Dest=Source;
length++;
}
}
if (pParsed)
*pParsed = bParsed;
return(length);
}
and for standard c function strncat, I simply rewrite it like
// append the first num characters of s2 to s1
char *strn_cat(char *s1, char *s2, UINT16 num)
{
UINT16 i;
while(*s1)
{
s1++;
}
for (i=0; i<num; i++)
{
if (!*s2)
break;
*s1++ = *s2++;
}
*s1 = *s2;
return s1;
}
