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| author | Arnold D. Robbins <arnold@skeeve.com> | 2019-11-21 22:01:34 +0200 |
|---|---|---|
| committer | Arnold D. Robbins <arnold@skeeve.com> | 2019-11-21 22:01:34 +0200 |
| commit | fd610c79b51ecd3be2ad3af9169b030cd53927ac (patch) | |
| tree | 3d5088dd18a141247c40bccfa77f6249918a4ae0 /support/regexec.c | |
| parent | 204dfd4460f499ade13a56152d2b21dcb287ace9 (diff) | |
| download | egawk-fd610c79b51ecd3be2ad3af9169b030cd53927ac.tar.gz egawk-fd610c79b51ecd3be2ad3af9169b030cd53927ac.tar.bz2 egawk-fd610c79b51ecd3be2ad3af9169b030cd53927ac.zip | |
Update regexec.c.
Diffstat (limited to 'support/regexec.c')
| -rw-r--r-- | support/regexec.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/support/regexec.c b/support/regexec.c index 3c46ac81..38b6d671 100644 --- a/support/regexec.c +++ b/support/regexec.c @@ -1266,10 +1266,13 @@ proceed_next_node (const re_match_context_t *mctx, Idx nregs, regmatch_t *regs, if (type == OP_BACK_REF) { Idx subexp_idx = dfa->nodes[node].opr.idx + 1; - naccepted = regs[subexp_idx].rm_eo - regs[subexp_idx].rm_so; + if (subexp_idx < nregs) + naccepted = regs[subexp_idx].rm_eo - regs[subexp_idx].rm_so; if (fs != NULL) { - if (regs[subexp_idx].rm_so == -1 || regs[subexp_idx].rm_eo == -1) + if (subexp_idx >= nregs + || regs[subexp_idx].rm_so == -1 + || regs[subexp_idx].rm_eo == -1) return -1; else if (naccepted) { |