#endif /* not HAVE_USLEEP */
}
+#if defined(__BORLANDC__) || (defined(_MSC_VER) && _MSC_VER < 1300)
+
+static inline int
+char_value (char c, int base)
+{
+ int value;
+ if (c < '0')
+ return -1;
+ if ('0' <= c && c <= '9')
+ value = c - '0';
+ else if ('a' <= c && c <= 'z')
+ value = c - 'a' + 10;
+ else if ('A' <= c && c <= 'Z')
+ value = c - 'A' + 10;
+ else
+ return -1;
+ if (value >= base)
+ return -1;
+ return value;
+}
+
+/* A fairly simple strtoll replacement for MS VC versions that don't
+ supply _strtoi64. */
+
+__int64
+str_to_int64 (const char *nptr, char **endptr, int base)
+{
+#define OVERFLOW 9223372036854775807I64
+#define UNDERFLOW (-OVERFLOW - 1)
+
+ __int64 result = 0;
+ int negative;
+
+ if (base != 0 && (base < 2 || base > 36))
+ {
+ errno = EINVAL;
+ return 0;
+ }
+
+ while (*nptr == ' ' || *nptr == '\t')
+ ++nptr;
+ if (*nptr == '-')
+ {
+ negative = 1;
+ ++nptr;
+ }
+ else if (*nptr == '+')
+ {
+ negative = 0;
+ ++nptr;
+ }
+ else
+ negative = 0;
+
+ /* If base is 0, determine the real base based on the beginning on
+ the number; octal numbers begin with "0", hexadecimal with "0x",
+ and the others are considered octal. */
+ if (*nptr == '0')
+ {
+ if ((base == 0 || base == 16)
+ &&
+ (*(nptr + 1) == 'x' || *(nptr + 1) == 'X'))
+ {
+ base = 16;
+ nptr += 2;
+ }
+ else if (base == 0)
+ base = 8;
+ }
+ else if (base == 0)
+ base = 10;
+
+ if (!negative)
+ {
+ /* Parse positive number, checking for overflow. */
+ int val;
+ for (; (val = char_value (*nptr, base)) != -1; ++nptr)
+ {
+ __int64 newresult = base * result + val;
+ if (newresult < result)
+ {
+ result = OVERFLOW;
+ errno = ERANGE;
+ break;
+ }
+ result = newresult;
+ }
+ }
+ else
+ {
+ /* Parse negative number, checking for underflow. */
+ int val;
+ for (; (val = char_value (*nptr, base)) != -1; ++nptr)
+ {
+ __int64 newresult = base * result - val;
+ if (newresult > result)
+ {
+ result = UNDERFLOW;
+ errno = ERANGE;
+ break;
+ }
+ result = newresult;
+ }
+ }
+ if (endptr)
+ *endptr = (char *) nptr;
+ return result;
+}
+
+#else /* !defined(__BORLANDC__) && (!defined(_MSC_VER) || _MSC_VER >= 1300) */
+
+__int64
+str_to_int64 (const char *nptr, char **endptr, int base)
+{
+#ifdef _MSC_VER
+ return _strtoi64 (nptr, endptr, base);
+#else
+ return strtoll (nptr, endptr, base);
+#endif
+}
+
+#endif /* !defined(__BORLANDC__) && (!defined(_MSC_VER) || _MSC_VER >= 1300) */
+
void
windows_main_junk (int *argc, char **argv, char **exec_name)
{
static void
ws_hangup (const char *reason)
{
- /* Whether we arrange our own version of opt.lfilename here. */
- int changedp = 0;
-
- if (!opt.lfilename)
- {
- opt.lfilename = unique_name (DEFAULT_LOGFILE, 0);
- changedp = 1;
- }
- printf (_("Continuing in background.\n"));
- if (changedp)
- printf (_("Output will be written to `%s'.\n"), opt.lfilename);
-
+ fprintf (stderr, _("Continuing in background.\n"));
log_request_redirect_output (reason);
/* Detach process from the current console. Under Windows 9x, if we
struct fake_fork_info
{
HANDLE event;
- int changedp;
+ int logfile_changed;
char lfilename[MAX_PATH + 1];
};
HANDLE section, event;
struct fake_fork_info *info;
char *name;
- DWORD le;
name = make_section_name (GetCurrentProcessId ());
section = OpenFileMapping (FILE_MAP_WRITE, FALSE, name);
- le = GetLastError ();
xfree (name);
+ /* It seems that Windows 9x and NT set last-error inconsistently when
+ OpenFileMapping() fails; so we assume it failed because the section
+ object does not exist. */
if (!section)
- {
- if (le == ERROR_FILE_NOT_FOUND)
- return 0; /* Section object does not exist; we are the parent. */
- else
- return -1;
- }
+ return 0; /* We are the parent. */
info = MapViewOfFile (section, FILE_MAP_WRITE, 0, 0, 0);
if (!info)
event = info->event;
+ info->logfile_changed = 0;
if (!opt.lfilename)
{
- opt.lfilename = unique_name (DEFAULT_LOGFILE, 0);
- info->changedp = 1;
- strncpy (info->lfilename, opt.lfilename, sizeof (info->lfilename));
- info->lfilename[sizeof (info->lfilename) - 1] = '\0';
+ /* See utils:fork_to_background for explanation. */
+ FILE *new_log_fp = unique_create (DEFAULT_LOGFILE, 0, &opt.lfilename);
+ if (new_log_fp)
+ {
+ info->logfile_changed = 1;
+ strncpy (info->lfilename, opt.lfilename, sizeof (info->lfilename));
+ info->lfilename[sizeof (info->lfilename) - 1] = '\0';
+ fclose (new_log_fp);
+ }
}
- else
- info->changedp = 0;
UnmapViewOfFile (info);
CloseHandle (section);
return 1; /* We are the child. */
}
-
+/* Windows doesn't support the fork() call; so we fake it by invoking
+ another copy of Wget with the same arguments with which we were
+ invoked. The child copy of Wget should perform the same initialization
+ sequence as the parent; so we should have two processes that are
+ essentially identical. We create a specially named section object that
+ allows the child to distinguish itself from the parent and is used to
+ exchange information between the two processes. We use an event object
+ for synchronization. */
static void
fake_fork (void)
{
- char *cmdline, *args;
char exe[MAX_PATH + 1];
DWORD exe_len, le;
SECURITY_ATTRIBUTES sa;
event = section = pi.hProcess = pi.hThread = NULL;
- /* Get command line arguments to pass to the child process.
- We need to skip the name of the command (what amounts to argv[0]). */
- cmdline = GetCommandLine ();
- if (*cmdline == '"')
- {
- args = strchr (cmdline + 1, '"');
- if (args)
- ++args;
- }
- else
- args = strchr (cmdline, ' ');
-
- /* It's ok if args is NULL, that would mean there were no arguments
- after the command name. As it is now though, we would never get here
- if that were true. */
-
/* Get the fully qualified name of our executable. This is more reliable
than using argv[0]. */
exe_len = GetModuleFileName (GetModuleHandle (NULL), exe, sizeof (exe));
if (!event)
return;
- /* Creat the child process detached form the current console and in a
+ /* Create the child process detached form the current console and in a
suspended state. */
memset (&si, 0, sizeof (si));
si.cb = sizeof (si);
- rv = CreateProcess (exe, args, NULL, NULL, TRUE, CREATE_SUSPENDED |
- DETACHED_PROCESS, NULL, NULL, &si, &pi);
+ rv = CreateProcess (exe, GetCommandLine (), NULL, NULL, TRUE,
+ CREATE_SUSPENDED | DETACHED_PROCESS,
+ NULL, NULL, &si, &pi);
if (!rv)
goto cleanup;
}
/* Ensure string is properly terminated. */
- if (info->changedp &&
+ if (info->logfile_changed &&
!memchr (info->lfilename, '\0', sizeof (info->lfilename)))
{
rv = FALSE;
}
printf (_("Continuing in background, pid %lu.\n"), pi.dwProcessId);
- if (info->changedp)
+ if (info->logfile_changed)
printf (_("Output will be written to `%s'.\n"), info->lfilename);
UnmapViewOfFile (info);
/* We failed, return. */
}
+/* This is the corresponding Windows implementation of the
+ fork_to_background() function in utils.c. */
void
fork_to_background (void)
{
projects / wget / blobdiff