vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

bugfix in cmdline handling

Browse source
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2009-12-24 22:55:06 +01:00
parent 0aa6339849
commit 4b4513adb3
1 changed files with 63 additions and 50 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

105
normal/cmdline.c
View file

@ -41,7 +41,7 @@ grub_err_t
grub_set_history (int newsize)
{
grub_uint32_t **old_hist_lines = hist_lines;
hist_lines = grub_malloc (sizeof (char *) * newsize);
hist_lines = grub_malloc (sizeof (grub_uint32_t *) * newsize);
/* Copy the old lines into the new buffer. */
if (old_hist_lines)
@ -68,16 +68,16 @@ grub_set_history (int newsize)
if (hist_pos < hist_end)
grub_memmove (hist_lines, old_hist_lines + hist_pos,
(hist_end - hist_pos) * sizeof (char *));
(hist_end - hist_pos) * sizeof (grub_uint32_t *));
else if (hist_used)
{
/* Copy the older part. */
grub_memmove (hist_lines, old_hist_lines + hist_pos,
(hist_size - hist_pos) * sizeof (char *));
(hist_size - hist_pos) * sizeof (grub_uint32_t *));
/* Copy the newer part. */
grub_memmove (hist_lines + hist_size - hist_pos, old_hist_lines,
hist_end * sizeof (char *));
hist_end * sizeof (grub_uint32_t *));
}
}
@ -109,24 +109,25 @@ strlen_ucs4 (const grub_uint32_t *s)
return p - s;
}
static grub_uint32_t *
strdup_ucs4 (const grub_uint32_t *s)
/* Replace the history entry on position POS with the string S. */
static void
grub_history_set (int pos, grub_uint32_t *s, grub_size_t len)
{
grub_size_t len;
char *p;
len = strlen_ucs4 (s) + 1;
p = (char *) grub_malloc (len * sizeof (grub_uint32_t));
if (! p)
return 0;
return grub_memcpy (p, s, len * sizeof (grub_uint32_t));
grub_free (hist_lines[pos]);
hist_lines[pos] = grub_malloc ((len + 1) * sizeof (grub_uint32_t));
if (!hist_lines[pos])
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
return ;
}
grub_memcpy (hist_lines[pos], s, len * sizeof (grub_uint32_t));
hist_lines[pos][len] = 0;
}
/* Insert a new history line S on the top of the history. */
static void
grub_history_add (grub_uint32_t *s)
grub_history_add (grub_uint32_t *s, grub_size_t len)
{
/* Remove the oldest entry in the history to make room for a new
entry. */
@ -147,16 +148,15 @@ grub_history_add (grub_uint32_t *s)
hist_pos = hist_size + hist_pos;
/* Insert into history. */
hist_lines[hist_pos] = strdup_ucs4 (s);
hist_lines[hist_pos] = NULL;
grub_history_set (hist_pos, s, len);
}
/* Replace the history entry on position POS with the string S. */
static void
grub_history_replace (int pos, grub_uint32_t *s)
grub_history_replace (int pos, grub_uint32_t *s, grub_size_t len)
{
pos = (hist_pos + pos) % hist_size;
grub_free (hist_lines[pos]);
hist_lines[pos] = strdup_ucs4 (s);
grub_history_set ((hist_pos + pos) % hist_size, s, len);
}
/* A completion hook to print items. */
@ -322,7 +322,8 @@ grub_cmdline_get (const char *prompt)
lpos = saved_lpos;
cl_set_pos_all ();
grub_memmove (buf + lpos, buf + lpos + len, llen - lpos + 1);
grub_memmove (buf + lpos, buf + lpos + len,
sizeof (grub_uint32_t) * (llen - lpos + 1));
llen -= len;
cl_print_all (lpos, 0);
cl_set_pos_all ();
@ -379,7 +380,7 @@ grub_cmdline_get (const char *prompt)
}
if (hist_used == 0)
grub_history_add (buf);
grub_history_add (buf, llen);
while ((key = GRUB_TERM_ASCII_CHAR (grub_getkey ())) != '\n' && key != '\r')
{
@ -413,11 +414,9 @@ grub_cmdline_get (const char *prompt)
case 9: /* Ctrl-i or TAB */
{
grub_uint32_t *insert;
int restore;
char *bufu8, *insertu8;
grub_size_t insertlen;
grub_size_t t;
char *insertu8;
char *bufu8;
buf[lpos] = '\0';
@ -432,7 +431,22 @@ grub_cmdline_get (const char *prompt)
insertu8 = grub_normal_do_completion (bufu8, &restore,
print_completion);
grub_free (bufu8);
insertlen = grub_strlen (bufu8);
if (restore)
{
/* Restore the prompt. */
grub_printf ("\n%s", prompt_translated);
init_clterm_all ();
cl_print_all (0, 0);
}
if (insertu8)
{
grub_size_t insertlen;
grub_ssize_t t;
grub_uint32_t *insert;
insertlen = grub_strlen (insertu8);
insert = grub_malloc ((insertlen + 1) * sizeof (grub_uint32_t));
if (!insert)
{
@ -444,21 +458,13 @@ grub_cmdline_get (const char *prompt)
t = grub_utf8_to_ucs4 (insert, insertlen,
(grub_uint8_t *) insertu8,
insertlen, 0);
insert[t] = 0;
grub_free (insertu8);
if (restore)
if (t > 0)
{
/* Restore the prompt. */
grub_printf ("\n%s", prompt_translated);
init_clterm_all ();
cl_print_all (0, 0);
insert[t] = 0;
cl_insert (insert);
}
if (insert)
{
cl_insert (insert);
grub_free (insertu8);
grub_free (insert);
}
}
@ -470,12 +476,19 @@ grub_cmdline_get (const char *prompt)
if (kill_buf)
grub_free (kill_buf);
kill_buf = strdup_ucs4 (buf + lpos);
kill_buf = grub_malloc ((llen - lpos + 1)
* sizeof (grub_uint32_t));
if (grub_errno)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
else
{
grub_memcpy (kill_buf, buf + lpos,
(llen - lpos + 1) * sizeof (grub_uint32_t));
kill_buf[llen - lpos] = 0;
}
cl_delete (llen - lpos);
}
@ -489,7 +502,7 @@ grub_cmdline_get (const char *prompt)
if (histpos > 0)
{
grub_history_replace (histpos, buf);
grub_history_replace (histpos, buf, llen);
histpos--;
}
@ -507,7 +520,7 @@ grub_cmdline_get (const char *prompt)
if (histpos < hist_used - 1)
{
grub_history_replace (histpos, buf);
grub_history_replace (histpos, buf, llen);
histpos++;
}
@ -592,8 +605,8 @@ grub_cmdline_get (const char *prompt)
if (strlen_ucs4 (buf) > 0)
{
grub_uint32_t empty[] = { 0 };
grub_history_replace (histpos, buf);
grub_history_add (empty);
grub_history_replace (histpos, buf, llen);
grub_history_add (empty, 0);
}
ret = grub_ucs4_to_utf8_alloc (buf + lpos, llen - lpos + 1);