/* Enter the command-line interface. HEAP is used for the command-line
buffer. Return only if FOREVER is nonzero and get_cmdline returns
nonzero (ESC is pushed). */
void
enter_cmdline (char *heap, int forever)
{
/* Initialize the data and print a message. */
init_cmdline ();
grub_setjmp (restart_cmdline_env);
init_page ();
#ifdef SUPPORT_DISKLESS
print_network_configuration ();
grub_putchar ('\n');
#endif
print_cmdline_message (forever);
while (1)
{
struct builtin *builtin;
char *arg;
*heap = 0;
print_error ();
errnum = ERR_NONE;
/* Get the command-line with the minimal BASH-like interface. */
if (get_cmdline (PACKAGE "> ", heap, 2048, 0, 1))
return;
/* If there was no command, grab a new one. */
if (! heap[0])
continue;
/* Find a builtin. */
builtin = find_command (heap);
if (! builtin)
continue;
/* If BUILTIN cannot be run in the command-line, skip it. */
if (! (builtin->flags & BUILTIN_CMDLINE))
{
errnum = ERR_UNRECOGNIZED;
continue;
}
/* Invalidate the cache, because the user may exchange removable
disks. */
buf_drive = -1;
/* Start to count lines, only if the internal pager is in use. */
if (use_pager)
count_lines = 0;
/* Run BUILTIN->FUNC. */
arg = skip_to (1, heap);
(builtin->func) (arg, BUILTIN_CMDLINE);
/* Finish the line count. */
count_lines = -1;
}
}
/* Enter the command-line interface. HEAP is used for the command-line
buffer. Return only if FOREVER is nonzero and get_cmdline returns
nonzero (ESC is pushed). */
void
enter_cmdline (char *heap, int forever)
{
if (! debug)
debug++;
//grub_setjmp (restart_cmdline_env);
/* Initialize the data and print a message. */
current_drive = GRUB_INVALID_DRIVE;
count_lines = -1;
kernel_type = KERNEL_TYPE_NONE;
errnum = 0;
errorcheck = 1; /* errorcheck on */
init_page ();
grub_putchar ('\n');
#ifdef SUPPORT_DISKLESS
print_network_configuration ();
grub_putchar ('\n');
#endif
print_cmdline_message (forever);
while (1)
{
struct builtin *builtin;
char *arg;
grub_error_t errnum_old;
errnum_old = errnum;
*heap = 0;
if (errnum && errorcheck)
print_error ();
errnum = ERR_NONE;
/* Get the command-line with the minimal BASH-like interface. */
prompt = PACKAGE "> ";
maxlen = 2048;
echo_char = 0;
readline = 1;
if (get_cmdline (heap))
{
kernel_type = KERNEL_TYPE_NONE;
return;
}
/* If there was no command, grab a new one. */
if (! heap[0])
continue;
/* Find a builtin. */
builtin = find_command (heap);
if (! builtin)
continue;
/* If BUILTIN cannot be run in the command-line, skip it. */
if (! (builtin->flags & BUILTIN_CMDLINE))
{
errnum = ERR_UNRECOGNIZED;
continue;
}
/* Invalidate the cache, because the user may exchange removable
disks. */
buf_drive = -1;
/* Start to count lines, only if the internal pager is in use. */
if (use_pager)
count_lines = 0;
if ((builtin->func) == errnum_func || (builtin->func) == checkrange_func)
errnum = errnum_old;
/* find && and || */
for (arg = skip_to (0, heap); *arg != 0; arg = skip_to (0, arg))
{
struct builtin *builtin1;
int ret;
char *arg1;
arg1 = arg;
if (*arg == '&' && arg[1] == '&' && (arg[2] == ' ' || arg[2] == '\t'))
{
/* handle the AND operator */
arg = skip_to (0, arg);
builtin1 = find_command (arg);
if (! builtin1 || ! (builtin1->flags & BUILTIN_CMDLINE))
{
errnum = ERR_UNRECOGNIZED;
goto next;
}
*arg1 = 0;
ret = (builtin->func) (skip_to (1, heap), BUILTIN_CMDLINE);
*arg1 = '&';
if (ret)
{
arg = skip_to (1, arg);
if ((builtin1->func) != errnum_func && (builtin1->func) != checkrange_func)
errnum = 0;
(builtin1->func) (arg, BUILTIN_CMDLINE);
} else
errnum = 0;
goto next;
} else if (*arg == '|' && arg[1] == '|' && (arg[2] == ' ' || arg[2] == '\t'))
{
/* handle the OR operator */
arg = skip_to (0, arg);
builtin1 = find_command (arg);
if (! builtin1 || ! (builtin1->flags & BUILTIN_CMDLINE))
{
errnum = ERR_UNRECOGNIZED;
goto next;
}
*arg1 = 0;
ret = (builtin->func) (skip_to (1, heap), BUILTIN_CMDLINE);
*arg1 = '|';
if (! ret)
{
arg = skip_to (1, arg);
if ((builtin1->func) != errnum_func && (builtin1->func) != checkrange_func)
errnum = 0;
(builtin1->func) (arg, BUILTIN_CMDLINE);
} else
errnum = 0;
goto next;
}
}
/* Run BUILTIN->FUNC. */
arg = (builtin->func) == commandline_func ? heap : skip_to (1, heap);
(builtin->func) (arg, BUILTIN_CMDLINE);
next:
/* Finish the line count. */
count_lines = -1;
}
}