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2006-09-22 Marco Gerards <marco@gnu.org>

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* normal/main.c (get_line): Malloc memory instead of using
	preallocated memory.  Removed the arguments `cmdline' and
	`max_len'.  Updated all callers.
This commit is contained in:
marco_g 2006-09-22 20:23:00 +00:00
parent 6ba4688b23
commit 2cff3677bb
2 changed files with 67 additions and 22 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
2006-09-22 Marco Gerards <marco@gnu.org>
* normal/main.c (get_line): Malloc memory instead of using
preallocated memory. Removed the arguments `cmdline' and
`max_len'. Updated all callers.
2006-09-22 Marco Gerards <marco@gnu.org>
* conf/i386-efi.rmk (grub_emu_DEPENDENCIES): New variable.

81
normal/main.c
View file

@ -40,13 +40,20 @@ static grub_menu_t current_menu = 0;
#define GRUB_DEFAULT_HISTORY_SIZE 50
/* Read a line from the file FILE. */
static int
get_line (grub_file_t file, char cmdline[], int max_len)
static char *
get_line (grub_file_t file)
{
char c;
int pos = 0;
int literal = 0;
int comment = 0;
char *cmdline;
int max_len = 64;
/* Initially locate some space. */
cmdline = grub_malloc (max_len);
if (! cmdline)
return 0;
while (1)
{
@ -97,14 +104,32 @@ get_line (grub_file_t file, char cmdline[], int max_len)
if (c == '\n')
break;
if (pos < max_len)
cmdline[pos++] = c;
if (pos >= max_len)
{
char *old_cmdline = cmdline;
max_len = max_len * 2;
cmdline = grub_realloc (cmdline, max_len);
if (! cmdline)
{
grub_free (old_cmdline);
return 0;
}
}
cmdline[pos++] = c;
}
}
cmdline[pos] = '\0';
return pos;
/* If the buffer is empty, don't return anything at all. */
if (pos == 0)
{
grub_free (cmdline);
cmdline = 0;
}
return cmdline;
}
static void
@ -168,20 +193,15 @@ read_config_file (const char *config)
grub_err_t getline (char **line)
{
char cmdline[100];
currline++;
if (! get_line (file, cmdline, sizeof (cmdline)))
return 0;
*line = grub_strdup (cmdline);
*line = get_line (file);
if (! *line)
return grub_errno;
return GRUB_ERR_NONE;
}
char cmdline[100];
grub_menu_t newmenu;
newmenu = grub_malloc (sizeof (*newmenu));
@ -196,16 +216,23 @@ read_config_file (const char *config)
if (! file)
return 0;
while (get_line (file, cmdline, sizeof (cmdline)))
while (1)
{
struct grub_script *parsed_script;
int startline;
char *cmdline;
cmdline = get_line (file);
if (!cmdline)
break;
startline = ++currline;
/* Execute the script, line for line. */
parsed_script = grub_script_parse (cmdline, getline);
grub_free (cmdline);
if (! parsed_script)
{
grub_printf ("(line %d-%d)\n", startline, currline);
@ -278,12 +305,14 @@ read_command_list (void)
file = grub_file_open (filename);
if (file)
{
char buf[80]; /* XXX arbitrary */
while (get_line (file, buf, sizeof (buf)))
while (1)
{
char *p;
grub_command_t cmd;
char *buf = get_line (file);
if (! buf)
break;
if (! grub_isgraph (buf[0]))
continue;
@ -303,11 +332,15 @@ read_command_list (void)
GRUB_COMMAND_FLAG_NOT_LOADED,
0, 0, 0);
if (! cmd)
continue;
{
grub_free (buf);
continue;
}
cmd->module_name = grub_strdup (p);
if (! cmd->module_name)
grub_unregister_command (buf);
grub_free (buf);
}
grub_file_close (file);
@ -360,14 +393,20 @@ read_fs_list (void)
file = grub_file_open (filename);
if (file)
{
char buf[80]; /* XXX arbitrary */
while (get_line (file, buf, sizeof (buf)))
while (1)
{
char *p = buf;
char *q = buf + grub_strlen (buf) - 1;
char *buf;
char *p;
char *q;
grub_fs_module_list_t fs_mod;
buf = get_line (file);
if (! buf)
break;
p = buf;
q = buf + grub_strlen (buf) - 1;
/* Ignore space. */
while (grub_isspace (*p))
p++;