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| author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2016-10-13 14:02:51 +0200 |
|---|---|---|
| committer | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2016-10-13 14:02:51 +0200 |
| commit | 133c91f732c6259fa9099100cd5b781d5b1cbfa1 (patch) | |
| tree | 478aa88a8c42cbcb8221dd6680a16131556b49be /nx-X11/lib/X11/ModMap.c | |
| parent | 051d521f6e20761ba6831cecd91883da960fa931 (diff) | |
| parent | a9f623f0a63372ca0705e8394fadf514dec55b1c (diff) | |
| download | nx-libs-133c91f732c6259fa9099100cd5b781d5b1cbfa1.tar.gz nx-libs-133c91f732c6259fa9099100cd5b781d5b1cbfa1.tar.bz2 nx-libs-133c91f732c6259fa9099100cd5b781d5b1cbfa1.zip | |
Merge branch 'uli42-pr/libX11_debian_backports' into 3.6.x
Attributes GH PR #215: https://github.com/ArcticaProject/nx-libs/pull/215
Diffstat (limited to 'nx-X11/lib/X11/ModMap.c')
| -rw-r--r-- | nx-X11/lib/X11/ModMap.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/nx-X11/lib/X11/ModMap.c b/nx-X11/lib/X11/ModMap.c index c99bfdd5f..122ca80db 100644 --- a/nx-X11/lib/X11/ModMap.c +++ b/nx-X11/lib/X11/ModMap.c @@ -28,6 +28,7 @@ in this Software without prior written authorization from The Open Group. #include <config.h> #endif #include "Xlibint.h" +#include <limits.h> XModifierKeymap * XGetModifierMapping(register Display *dpy) @@ -41,13 +42,17 @@ XGetModifierMapping(register Display *dpy) GetEmptyReq(GetModifierMapping, req); (void) _XReply (dpy, (xReply *)&rep, 0, xFalse); - nbytes = (unsigned long)rep.length << 2; - res = (XModifierKeymap *) Xmalloc(sizeof (XModifierKeymap)); - if (res) res->modifiermap = (KeyCode *) Xmalloc ((unsigned) nbytes); + if (rep.length < (LONG_MAX >> 2)) { + nbytes = (unsigned long)rep.length << 2; + res = Xmalloc(sizeof (XModifierKeymap)); + if (res) + res->modifiermap = Xmalloc (nbytes); + } else + res = NULL; if ((! res) || (! res->modifiermap)) { if (res) Xfree((char *) res); res = (XModifierKeymap *) NULL; - _XEatData(dpy, nbytes); + _XEatDataWords(dpy, rep.length); } else { _XReadPad(dpy, (char *) res->modifiermap, (long) nbytes); res->max_keypermod = rep.numKeyPerModifier; |