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Squash memory leak.

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Ensure that the icon string's always set to something, even if it's the 
UTF-8 text if we're unable to convert to the local encoding.

svn path=/trunk/netsurf/; revision=2965
This commit is contained in:
John Mark Bell 2006-09-25 22:27:41 +00:00
parent 8b324f1247
commit 6c7323fded
1 changed files with 11 additions and 6 deletions
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17
riscos/wimp.c
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@ -217,7 +217,7 @@ void ro_gui_set_icon_string(wimp_w w, wimp_i i, const char *text) {
wimp_icon_state ic;
os_error *error;
int old_len, len;
char *local_text;
char *local_text = NULL;
utf8_convert_ret err;
unsigned int button_type;
@ -238,22 +238,26 @@ void ro_gui_set_icon_string(wimp_w w, wimp_i i, const char *text) {
/* A bad encoding should never happen, so assert this */
assert(err != UTF8_CONVERT_BADENC);
LOG(("utf8_to_enc failed"));
return;
/* Paranoia */
local_text = NULL;
}
len = strlen(local_text);
len = strlen(local_text ? local_text : text);
/* check that the existing text is not the same as the updated text
* to stop flicker */
if (ic.icon.data.indirected_text.size &&
!strncmp(ic.icon.data.indirected_text.text,
local_text,
(unsigned int)ic.icon.data.indirected_text.size - 1))
local_text ? local_text : text,
(unsigned int)ic.icon.data.indirected_text.size - 1)) {
free(local_text);
return;
}
/* copy the text across */
old_len = strlen(ic.icon.data.indirected_text.text);
if (ic.icon.data.indirected_text.size) {
strncpy(ic.icon.data.indirected_text.text, local_text,
strncpy(ic.icon.data.indirected_text.text,
local_text ? local_text : text,
(unsigned int)ic.icon.data.indirected_text.size - 1);
ic.icon.data.indirected_text.text[
ic.icon.data.indirected_text.size - 1] = '\0';
@ -269,6 +273,7 @@ void ro_gui_set_icon_string(wimp_w w, wimp_i i, const char *text) {
LOG(("xwimp_get_caret_position: 0x%x: %s",
error->errnum, error->errmess));
warn_user("WimpError", error->errmess);
free(local_text);
return;
}
if ((caret.w == w) && (caret.i == i)) {