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| author | Přemysl Eric Janouch <p@janouch.name> | 2022-09-24 18:42:59 +0200 |
|---|---|---|
| committer | Přemysl Eric Janouch <p@janouch.name> | 2022-09-24 18:42:59 +0200 |
| commit | d13b4a793d577be2364bcabb05bca1f19321b65a (patch) | |
| tree | 950e679860a0e015f8d04b2d52e8919f5fd3ff86 | |
| parent | 0570a4d050394f35e80a4e9a5b58a433f53e32b7 (diff) | |
| download | tdv-d13b4a793d577be2364bcabb05bca1f19321b65a.tar.gz tdv-d13b4a793d577be2364bcabb05bca1f19321b65a.tar.xz tdv-d13b4a793d577be2364bcabb05bca1f19321b65a.zip | |
Prevent undefined behaviour
| -rw-r--r-- | src/stardict.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/stardict.c b/src/stardict.c index cdd11a1..6775553 100644 --- a/src/stardict.c +++ b/src/stardict.c @@ -1014,6 +1014,10 @@ stardict_longest_common_collation_prefix (StardictDict *sd, u_strFromUTF8 (NULL, 0, &uc2_len, s2, -1, &error); error = U_ZERO_ERROR; + // Prevent undefined behaviour with VLAs. + if (!uc1_len || !uc2_len) + return 0; + UChar uc1[uc1_len]; UChar uc2[uc2_len]; u_strFromUTF8 (uc1, uc1_len, NULL, s1, -1, &error); |