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author | Darkvater <darkvater@openttd.org> | 2005-12-20 20:52:05 +0000 |
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committer | Darkvater <darkvater@openttd.org> | 2005-12-20 20:52:05 +0000 |
commit | 0f41b99c5e106e11708d0be478e7defb92f0a43a (patch) | |
tree | a8811c0d9f666534f8861378b0eb8b6629c5186b /string.h | |
parent | 8f873d4ece827d8f95f8ded0f49b47dbe5942506 (diff) | |
download | openttd-0f41b99c5e106e11708d0be478e7defb92f0a43a.tar.xz |
(svn r3322) - Fix: Network window crash when it receives invalid information for example from the integrated nightly, so validate the network-input when it is received
- CodeChange: added str_validate(char *str) function that checks if a string contains only printable characters and if not, replaces those characters by question marks. Also move IsValidAsciiChar() to string.h
Diffstat (limited to 'string.h')
-rw-r--r-- | string.h | 16 |
1 files changed, 16 insertions, 0 deletions
@@ -25,4 +25,20 @@ char* strecpy(char* dst, const char* src, const char* last); char* CDECL str_fmt(const char* str, ...); +/** Scans the string for valid characters and if it finds invalid ones, + * replaces them with a question mark '?' */ +void str_validate(char *str); + +/** Only allow valid ascii-function codes. Filter special codes like BELL and + * so on [we need a special filter here later] + * @param key character to be checked + * @return true or false depending if the character is printable/valid or not */ +static inline bool IsValidAsciiChar(byte key) +{ + // XXX This filter stops certain crashes, but may be too restrictive. + return (key >= ' ' && key < 127) || (key >= 160 && + key != 0xAA && key != 0xAC && key != 0xAD && key != 0xAF && + key != 0xB5 && key != 0xB6 && key != 0xB7 && key != 0xB9); +} + #endif /* STRING_H */ |