rbxii3/firmware
1
0
Fork 0
mirror of https://github.com/meshtastic/firmware.git synced 2025-12-30 14:40:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

Improve getSafeNodeName / sanitizeString code.

Browse Source
This commit is contained in:
Jason P
2025-11-04 07:27:56 -06:00
parent ef5016aa12
commit ccdb27d377
1 changed files with 35 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
src/graphics/draw/NodeListRenderer.cpp
View File

@@ -55,51 +55,54 @@ static int scrollIndex = 0;
const char *getSafeNodeName(OLEDDisplay *display, meshtastic_NodeInfoLite *node)
{
const char *name = NULL;
static char nodeName[16] = "?";
if (config.display.use_long_node_name == true) {
if (node->has_user && strlen(node->user.long_name) > 0) {
name = node->user.long_name;
} else {
snprintf(nodeName, sizeof(nodeName), "(%04X)", (uint16_t)(node->num & 0xFFFF));
}
} else {
if (node->has_user && strlen(node->user.short_name) > 0) {
name = node->user.short_name;
} else {
snprintf(nodeName, sizeof(nodeName), "(%04X)", (uint16_t)(node->num & 0xFFFF));
}
static char nodeName[16]; // single static buffer we return
nodeName[0] = '\0';
auto writeFallbackId = [&] {
std::snprintf(nodeName, sizeof(nodeName), "(%04X)", static_cast<uint16_t>(node ? (node->num & 0xFFFF) : 0));
};
// 1) Choose target candidate (long vs short) only if present
const char *raw = nullptr;
if (node && node->has_user) {
raw = config.display.use_long_node_name ? node->user.long_name : node->user.short_name;
}
// Use sanitizeString() function and copy directly into nodeName
std::string sanitized_name = sanitizeString(name ? name : "");
// 2) Sanitize (empty if raw is null/empty)
std::string s = (raw && *raw) ? sanitizeString(raw) : std::string{};
if (!sanitized_name.empty()) {
strncpy(nodeName, sanitized_name.c_str(), sizeof(nodeName) - 1);
nodeName[sizeof(nodeName) - 1] = '\0';
// 3) Fallback if sanitize yields empty; otherwise copy safely (truncate if needed)
if (s.empty()) {
writeFallbackId();
} else {
snprintf(nodeName, sizeof(nodeName), "(%04X)", (uint16_t)(node->num & 0xFFFF));
// %.*s ensures null-termination and safe truncation to buffer size - 1
std::snprintf(nodeName, sizeof(nodeName), "%.*s", static_cast<int>(sizeof(nodeName) - 1), s.c_str());
}
if (config.display.use_long_node_name == true) {
// 4) Width-based truncation + ellipsis (long-name mode only)
if (config.display.use_long_node_name && display) {
int availWidth = (SCREEN_WIDTH / 2) - 65;
if (availWidth < 0)
availWidth = 0;
size_t origLen = strlen(nodeName);
while (nodeName[0] && display->getStringWidth(nodeName) > availWidth) {
nodeName[strlen(nodeName) - 1] = '\0';
const size_t beforeLen = std::strlen(nodeName);
// Trim from the end until it fits or is empty
size_t len = beforeLen;
while (len && display->getStringWidth(nodeName) > availWidth) {
nodeName[--len] = '\0';
}
// If we actually truncated, append "..." (ensure space remains in buffer)
if (strlen(nodeName) < origLen) {
size_t len = strlen(nodeName);
size_t maxLen = sizeof(nodeName) - 4; // 3 for "..." and 1 for '\0'
if (len > maxLen) {
nodeName[maxLen] = '\0';
len = maxLen;
// If truncated, append "..." (respect buffer size)
if (len < beforeLen) {
// Make sure there's room for "..." and '\0'
const size_t capForText = sizeof(nodeName) - 1; // leaving space for '\0'
const size_t needed = 3; // "..."
if (len > capForText - needed) {
len = capForText - needed;
nodeName[len] = '\0';
}
strcat(nodeName, "...");
std::strcat(nodeName, "...");
}
}