/* replace needle in *str with replace (all occourences)
*/
void replace (char **str, char *needle, char *replace)
{
char *pstr = *str, *p2str=*str;
char *newstr = NULL;
unsigned int needlesize = strlen (needle), replacesize = strlen (replace);
/* search for needle at the current possition in the string */
while (1) {
/* no more needles found */
if ((p2str = strstr (pstr, needle)) == NULL)
{
if (*pstr)
{
strnadd (&newstr, pstr, strlen(pstr)); /* write rest of string in a new one */
}
break; /* end loop */
}
/* needle found */
if (p2str > pstr)
{
strnadd (&newstr, pstr, p2str - pstr); /* write region between last and current
string into the new string */
}
strnadd (&newstr, replace, replacesize); /* write 'replace' into the new string*/
pstr = p2str += needlesize; /* move size of 'needle' in the string */
}
/* change 'str' to new string */
*str = newstr;
}
char *get_str(pid_t pid, unsigned long reg, unsigned long size)
{
char *peek;
size_t i;
size_t total;
int cont;
int max;
char *str;
cont = get_str_init(&str, &max, &size, &total);
strnadd(&str, "\"", 1);
while (cont)
{
peek = (char*)my_ptrace(PTRACE_PEEKDATA, pid, (char*)(reg + total), 0);
i = 0;
while (i < 8 && ((((char*)&peek + i)[0] != '\0'
&& size == 0) || size != 0))
{
get_one_char(&str, ((char*)&peek + i)[0]);
++i;
}
total += i;
if ((i < 8 && size == 0) || (total >= size && size > 0))
cont = 0;
}
get_str_end(&str, max);
return (str);
}
static void get_one_char(char **str, char c)
{
int slen;
char nb[8];
if (isprint(c))
strnadd(str, &c, 1);
else
{
if (c == '\n')
strnadd(str, "\\n", 2);
else if (c == '\t')
strnadd(str, "\\t", 2);
else
{
slen = sprintf(nb, "\\%o", c);
strnadd(str, nb, slen);
}
}
}
static void get_str_end(char **str, int max)
{
strnadd(str, "\"", 1);
if (max)
strnadd(str, "...", 3);
}
