static void
handle_sigtrap(struct child *son)
{
long scno, ret;
const char *scname;
/* We get this event twice, one at entering a
* system call and one at exiting a system
* call. */
if (son->insyscall) {
if (!pink_util_get_return(son->pid, &ret))
err(1, "pink_util_get_return");
if (son->inexecve) {
son->inexecve = false;
if (ret == 0) { /* execve was successful */
/* Update bitness */
son->bitness = pink_bitness_get(son->pid);
if (son->bitness == PINK_BITNESS_UNKNOWN)
err(1, "pink_bitness_get");
printf(" = 0 (Updating the bitness of child %i to %s mode)\n",
son->pid, pink_bitness_name(son->bitness));
son->printret = false;
return;
}
}
son->insyscall = false;
if (!son->printret) {
son->printret = true;
return;
}
/* Exiting the system call, print the
* return value. */
putchar(' ');
print_ret(ret);
putchar('\n');
}
else {
son->insyscall = true;
/* Get the system call number and call
* the appropriate decoder. */
if (!pink_util_get_syscall(son->pid, son->bitness, &scno))
err(1, "pink_util_get_syscall");
scname = pink_name_syscall(scno, son->bitness);
assert(scname != NULL);
if (!strcmp(scname, "execve"))
son->inexecve = true;
if (!strcmp(scname, "open"))
decode_open(son->pid, son->bitness);
else if (!strcmp(scname, "execve"))
decode_execve(son->pid, son->bitness);
else if (!strcmp(scname, "bind") || !strcmp(scname, "connect"))
decode_socketcall(son->pid, son->bitness, scname);
else
printf("%s()", scname);
}
}
static void
handle_syscall(struct child *son)
{
long scno;
const char *scname;
/* We get this event twice, one at entering a
* system call and one at exiting a system
* call. */
if (son->insyscall) {
/* Exiting the system call, print the
* return value. */
son->insyscall = false;
putchar(' ');
print_ret(son->pid);
putchar('\n');
}
else {
/* Get the system call number and call
* the appropriate decoder. */
son->insyscall = true;
if (!pink_util_get_syscall(son->pid, son->bitness, &scno)) {
perror("pink_util_get_syscall");
return;
}
scname = pink_name_syscall(scno, son->bitness);
if (!scname)
printf("%ld()", scno);
else if (!strcmp(scname, "open"))
decode_open(son->pid, son->bitness);
else if (!strcmp(scname, "execve"))
decode_execve(son->pid, son->bitness);
else if (!strcmp(scname, "socketcall") || !strcmp(scname, "bind") || !strcmp(scname, "connect"))
decode_socketcall(son->pid, son->bitness, scname);
else
printf("%s()", scname);
}
}