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Reject obviously invalid numbers in /set.

Browse source 
A limitation of the settings model is that any value
that fits in an int is accepted, e.g. negative port
numbers.


git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@5017 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Jilles Tjoelker 2009-02-21 17:20:13 +00:00 • committed by jilles
commit 115a7fc355
3 changed files with 25 additions and 3 deletions
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26
src/fe-common/core/fe-settings.c
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@ -76,6 +76,23 @@ static void set_boolean(const char *key, const char *value)
printformat(NULL, NULL, MSGLEVEL_CLIENTCRAP, TXT_NOT_TOGGLE);
}
static void set_int(const char *key, const char *value)
{
char *endp;
long longval;
int error;
errno = 0;
longval = strtol(value, &endp, 10);
error = errno;
while (isspace((unsigned char)*endp))
endp++;
if (error != 0 || *endp != '\0' || longval < INT_MIN || longval > INT_MAX)
printformat(NULL, NULL, MSGLEVEL_CLIENTERROR, TXT_INVALID_NUMBER);
else
settings_set_int(key, (int)longval);
}
/* SYNTAX: SET [-clear | -default] [<key> [<value>]] */
static void cmd_set(char *data)
{
@ -111,9 +128,12 @@ static void cmd_set(char *data)
set_boolean(key, value);
break;
case SETTING_TYPE_INT:
settings_set_int(key, clear ? 0 :
set_default ? rec->default_value.v_int :
atoi(value));
if (clear)
settings_set_int(key, 0);
else if (set_default)
settings_set_int(key, rec->default_value.v_int);
else
set_int(key, value);
break;
case SETTING_TYPE_STRING:
settings_set_str(key, clear ? "" :