commit c6167b77baf79a28bd55b4f09dba85422515c5bc Author: Jonathan Kew jkew@mozilla.com Date: Mon Mar 26 20:35:48 2018 +0100

Bug 1448771 - Merge fix from upstream. r=ryanvm, a=RyanVM

--HG-- extra : source : f5db47b5c6416a3cef546de1aa9089d98109f95f --- intl/hyphenation/hyphen/hyphen.c | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/intl/hyphenation/hyphen/hyphen.c b/intl/hyphenation/hyphen/hyphen.c index 9a132d0262f2..9f2b7112c848 100644 --- a/intl/hyphenation/hyphen/hyphen.c +++ b/intl/hyphenation/hyphen/hyphen.c @@ -438,11 +438,25 @@ for (k = 0; k < 2; k++) { }

if (k == 0 || nextlevel) { - while (fgets (buf, sizeof(buf), f) != NULL) { + while (fgets(buf, sizeof(buf), f) != NULL) { + + /* discard lines that don't fit in buffer */ + if (!feof(f) && strchr(buf, '\n') == NULL) { + int c; + while ((c = fgetc(f)) != '\n' && c != EOF); + /* issue warning if not a comment */ + if (buf[0] != '%') { + fprintf(stderr, "Warning: skipping too long pattern (more than %lu chars)\n", sizeof(buf)); + } + continue; + } + if (strncmp(buf, "NEXTLEVEL", 9) == 0) { - nextlevel = 1; - break; - } else if (buf[0] != '%') hnj_hyphen_load_line(buf, dict[k], hashtab); + nextlevel = 1; + break; + } else if (buf[0] != '%') { + hnj_hyphen_load_line(buf, dict[k], hashtab); + } } } else if (k == 1) { /* default first level: hyphen and ASCII apostrophe */