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Resolve dangling pointer issues with sanitize code

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This commit is contained in:
Jason P 2025-06-24 22:33:27 -05:00
parent ca34fe9a90
commit 819f5a2fde
1 changed files with 7 additions and 8 deletions
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15
src/graphics/draw/UIRenderer.cpp
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@ -279,14 +279,14 @@ void UIRenderer::drawNodeInfo(OLEDDisplay *display, const OLEDDisplayUiState *st
// List of available macro Y positions in order, from top to bottom.
int line = 1; // which slot to use next
std::string usernameStr;
// === 1. Long Name (always try to show first) ===
const char *username = (node->has_user && node->user.long_name[0]) ? node->user.long_name : nullptr;
if (username) {
std::string sanitized = sanitizeString(username); // Sanitize the incoming long_name just in case
username = sanitized.c_str();
usernameStr = sanitizeString(username); // Sanitize the incoming long_name just in case
// Print node's long name (e.g. "Backpack Node")
display->drawString(x, getTextPositions(display)[line++], username);
display->drawString(x, getTextPositions(display)[line++], usernameStr.c_str());
}
// === 2. Signal and Hops (combined on one line, if available) ===
@ -662,19 +662,18 @@ void UIRenderer::drawDeviceFocused(OLEDDisplay *display, OLEDDisplayUiState *sta
int nameX = 0;
int yOffset = (isHighResolution) ? 0 : 5;
const char *longName = nullptr;
std::string sanitized;
std::string longNameStr;
meshtastic_NodeInfoLite *ourNode = nodeDB->getMeshNode(nodeDB->getNodeNum());
if (ourNode && ourNode->has_user && strlen(ourNode->user.long_name) > 0) {
std::string sanitized = sanitizeString(ourNode->user.long_name);
longName = sanitized.c_str();
longNameStr = sanitizeString(ourNode->user.long_name);
}
char shortnameble[35];
snprintf(shortnameble, sizeof(shortnameble), "%s",
graphics::UIRenderer::haveGlyphs(owner.short_name) ? owner.short_name : "");
char combinedName[50];
snprintf(combinedName, sizeof(combinedName), "%s (%s)", longName, shortnameble);
snprintf(combinedName, sizeof(combinedName), "%s (%s)", longNameStr.empty() ? "" : longNameStr.c_str(), shortnameble);
if (SCREEN_WIDTH - (display->getStringWidth(longName) + display->getStringWidth(shortnameble)) > 10) {
size_t len = strlen(combinedName);
if (len >= 3 && strcmp(combinedName + len - 3, " ()") == 0) {
@ -688,7 +687,7 @@ void UIRenderer::drawDeviceFocused(OLEDDisplay *display, OLEDDisplayUiState *sta
// === LongName Centered ===
textWidth = display->getStringWidth(longName);
nameX = (SCREEN_WIDTH - textWidth) / 2;
display->drawString(nameX, getTextPositions(display)[line++], longName);
display->drawString(nameX, getTextPositions(display)[line++], longNameStr.c_str());
// === ShortName Centered ===
textWidth = display->getStringWidth(shortnameble);