Mercurial > vim
comparison src/regexp_nfa.c @ 15265:a7d02a56b5d5 v8.1.0641
patch 8.1.0641: no check for out-of-memory when converting regexp
commit https://github.com/vim/vim/commit/c57463c9c6ee893285f553e0ac3b2fe5935f16b8
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Dec 26 22:04:41 2018 +0100
patch 8.1.0641: no check for out-of-memory when converting regexp
Problem: No check for out-of-memory when converting regexp.
Solution: Bail out when lalloc() returns NULL. (John Marriott)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Wed, 26 Dec 2018 22:15:05 +0100 |
| parents | ffd834f893aa |
| children | 55ccc2d353bd |
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| 15264:ac8b7be7e2fa | 15265:a7d02a56b5d5 |
|---|---|
| 3216 return NULL; \ | 3216 return NULL; \ |
| 3217 } | 3217 } |
| 3218 | 3218 |
| 3219 if (nfa_calc_size == FALSE) | 3219 if (nfa_calc_size == FALSE) |
| 3220 { | 3220 { |
| 3221 /* Allocate space for the stack. Max states on the stack : nstate */ | 3221 // Allocate space for the stack. Max states on the stack: "nstate'. |
| 3222 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); | 3222 stack = (Frag_T *)lalloc((nstate + 1) * sizeof(Frag_T), TRUE); |
| 3223 if (stack == NULL) | |
| 3224 return NULL; | |
| 3223 stackp = stack; | 3225 stackp = stack; |
| 3224 stack_end = stack + (nstate + 1); | 3226 stack_end = stack + (nstate + 1); |
| 3225 } | 3227 } |
| 3226 | 3228 |
| 3227 for (p = postfix; p < end; ++p) | 3229 for (p = postfix; p < end; ++p) |