diff options
Diffstat (limited to 'Src/Modules/parameter.c')
| -rw-r--r-- | Src/Modules/parameter.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/Src/Modules/parameter.c b/Src/Modules/parameter.c index 96a211c69..a05ea2fe4 100644 --- a/Src/Modules/parameter.c +++ b/Src/Modules/parameter.c @@ -1233,9 +1233,16 @@ histwgetfn(UNUSED(Param pm)) pushnode(l, getdata(n)); while (he) { + char *hstr = he->node.nam; + int len = strlen(hstr); for (iw = he->nwords - 1; iw >= 0; iw--) { - h = he->node.nam + he->words[iw * 2]; - e = he->node.nam + he->words[iw * 2 + 1]; + int wbegin = he->words[iw * 2]; + int wend = he->words[iw * 2 + 1]; + + if (wbegin < 0 || wbegin >= len || wend < 0 || wend > len) + break; + h = hstr + wbegin; + e = hstr + wend; sav = *e; *e = '\0'; addlinknode(l, dupstring(h)); |