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author | smatz <smatz@openttd.org> | 2007-12-08 18:50:39 +0000 |
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committer | smatz <smatz@openttd.org> | 2007-12-08 18:50:39 +0000 |
commit | 2a62aa1ccda7ab0e8c8774f75f50210ff4dd6480 (patch) | |
tree | 0b95686d855b933403c898b7a6c165b5ec2c2f09 /src/vehicle_gui.cpp | |
parent | b47bce651e64ddeab722f599c0a682281b626c45 (diff) | |
download | openttd-2a62aa1ccda7ab0e8c8774f75f50210ff4dd6480.tar.xz |
(svn r11601) -Codechange: more strict break conditions for _userstring, assert when it overflows anyway (eg. code change without proper check change)
Diffstat (limited to 'src/vehicle_gui.cpp')
-rw-r--r-- | src/vehicle_gui.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/vehicle_gui.cpp b/src/vehicle_gui.cpp index 0cb5307d9..2aa2f193e 100644 --- a/src/vehicle_gui.cpp +++ b/src/vehicle_gui.cpp @@ -506,6 +506,8 @@ uint ShowRefitOptionsList(int x, int y, uint w, EngineID engine) for (CargoID cid = 0; cid < NUM_CARGO; cid++) { if (!HasBit(cmask, cid)) continue; + if (b >= lastof(_userstring) - (2 + 2 * 4)) break; // ", " and two calls to Utf8Encode() + if (!first) b = strecpy(b, ", ", lastof(_userstring)); first = false; @@ -515,6 +517,10 @@ uint ShowRefitOptionsList(int x, int y, uint w, EngineID engine) /* Terminate and display the completed string */ *b = '\0'; + + /* Make sure we detect any buffer overflow */ + assert(b < endof(_userstring)); + return DrawStringMultiLine(x, y, STR_SPEC_USERSTRING, w); } |