aniani/profanity
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Fix gcc warnings for cygwin

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strncpy(3) is not so safe function and can lead to mistakes. For
example, strncpy(dest, "Profanity", 10); is redundant and leads to
problems when someone changes the source string.

Different example is when 3rd argument equals to length of the
destination buffer. strncpy(3) doesn't terminate string with '\0' when
it truncates. Therefore, the destination string becomes corrupted.

Zeroize storage for 'nid', so the last byte remains '\0' in case of
truncate.
This commit is contained in:
Dmitry Podgorny 2020-06-24 03:09:53 +03:00
parent 5d8f3f2791
commit 09e12a826f
1 changed files with 4 additions and 3 deletions
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7
src/ui/notifier.c
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@ -234,20 +234,21 @@ notify(const char *const message, int timeout, const char *const category)
#endif
#ifdef PLATFORM_CYGWIN
NOTIFYICONDATA nid;
memset(&nid, 0, sizeof(nid));
nid.cbSize = sizeof(NOTIFYICONDATA);
//nid.hWnd = hWnd;
nid.uID = 100;
nid.uVersion = NOTIFYICON_VERSION;
//nid.uCallbackMessage = WM_MYMESSAGE;
nid.hIcon = LoadIcon(NULL, IDI_APPLICATION);
strncpy(nid.szTip, "Tray Icon", 10);
strcpy(nid.szTip, "Tray Icon");
nid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
Shell_NotifyIcon(NIM_ADD, &nid);
// For a Ballon Tip
nid.uFlags = NIF_INFO;
strncpy(nid.szInfoTitle, "Profanity", 10); // Title
strncpy(nid.szInfo, message, 256); // Copy Tip
strcpy(nid.szInfoTitle, "Profanity"); // Title
strncpy(nid.szInfo, message, sizeof(nid.szInfo) - 1); // Copy Tip
nid.uTimeout = timeout; // 3 Seconds
nid.dwInfoFlags = NIIF_INFO;