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| author | zoulasc <zoulasc@users.noreply.github.com> | 2019-12-09 02:00:45 -0500 |
|---|---|---|
| committer | Arnold Robbins <arnold@skeeve.com> | 2019-12-09 09:00:45 +0200 |
| commit | af86dacfad85857b2ea9fa95150ddd8c671695ed (patch) | |
| tree | 3a6fa88debc84b3c07ee614509011e68663912cc | |
| parent | 416c6db5ee829b5e97dc8001b28e475fd942dbb6 (diff) | |
| download | one-true-awk-af86dacfad85857b2ea9fa95150ddd8c671695ed.tar.gz | |
Fix memory corruption manifested on 32 bit binaries (#58)
* Don't update gototab entries for HAT (corrupts memory)
| -rw-r--r-- | b.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -1273,7 +1273,8 @@ int cgoto(fa *f, int s, int c) if (tmpset[j] != p[j]) goto different; /* setvec is state i */ - f->gototab[s][c] = i; + if (c != HAT) + f->gototab[s][c] = i; return i; different:; } @@ -1287,7 +1288,8 @@ int cgoto(fa *f, int s, int c) p = intalloc(setcnt + 1, __func__); f->posns[f->curstat] = p; - f->gototab[s][c] = f->curstat; + if (c != HAT) + f->gototab[s][c] = f->curstat; for (i = 0; i <= setcnt; i++) p[i] = tmpset[i]; if (setvec[f->accept]) |