BOOL IsUrlSchemeSupportedW(LPCWSTR pszUrl)
{
static const struct SCHEME
{
LPCWSTR pszPrefix;
int iLen;
} _aSchemes[] =
{
#define SCHEME_ENTRY(prefix) { prefix, ARRSIZE(prefix)-1 }
SCHEME_ENTRY(L"ed2k://")
#undef SCHEME_ENTRY
};
for (int i = 0; i < ARRSIZE(_aSchemes); i++)
{
if (wcsncmp(pszUrl, _aSchemes[i].pszPrefix, _aSchemes[i].iLen) == 0)
return TRUE;
}
return FALSE;
}
int main(int argc, char *argv[]) {
struct sigaction action;
sigset_t s_set;
int n;
pagesize = sysconf(_SC_PAGESIZE);
stacksize = default_stacksize;
heapsize = default_heapsize;
for (n = 1; n < argc; n++)
if ((*argv[n] == '-') && (*(argv[n]+2) == 0))
switch (*(argv[n]+1)) {
case 'h': /* heap size option */
argv[n] = (char *)NULL;
if (++n == argc) usage_error(argv[0]);
heapsize = atoi(argv[n]);
if (heapsize <= 0) usage_error(argv[0]);
break;
case 's': /* stack size option */
argv[n] = (char *)NULL;
if (++n == argc) usage_error(argv[0]);
stacksize = atoi(argv[n]);
if (stacksize <= 0) usage_error(argv[0]);
break;
default:
usage_error(argv[0]);
}
else
usage_error(argv[0]);
/* round stack and heap sizes to even pages */
stacksize = ((stacksize + pagesize - 1) / pagesize) * pagesize;
heapsize = ((heapsize + pagesize - 1) / pagesize) * pagesize;
stack = guarded_area(stacksize);
heap = guarded_area(heapsize);
/* Set up segmentation fault signal handler to catch stack and heap
* overflow and some memory faults */
sigemptyset(&s_set);
#ifdef __linux__
action.sa_handler = (void *)segv_handler;
action.sa_flags = SA_RESETHAND;
#else
action.sa_sigaction = segv_handler;
action.sa_flags = SA_SIGINFO | SA_RESETHAND;
#endif
action.sa_mask = s_set;
if (sigaction(SIGSEGV, &action, NULL)) {
fprintf(stderr, "sigaction failed: %s\n", strerror(errno));
fprintf(stderr, " overflow checking may not work\n");
}
/* Set up bus error signal handler to catch remaining memory faults */
sigemptyset(&s_set);
action.sa_handler = bus_handler;
action.sa_mask = s_set;
action.sa_flags = SA_RESETHAND;
if (sigaction(SIGBUS, &action, NULL)) {
fprintf(stderr, "sigaction failed: %s\n", strerror(errno));
}
/* run the Scheme program and print the result */
print(SCHEME_ENTRY(stack, heap));
printf("\n");
return 0;
}