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| author | ksss <[email protected]> | 2017-05-08 23:14:08 +0900 |
|---|---|---|
| committer | ksss <[email protected]> | 2017-05-08 23:18:14 +0900 |
| commit | 30df7c87624692227a24eee7ed7c2507b249e6e5 (patch) | |
| tree | 3c9d5aa2d53bfb4a8693ee6c19903df38b4ecff2 /mrbgems/mruby-sprintf/src/sprintf.c | |
| parent | ef305305b43528d94b162078c421a0590ba1c438 (diff) | |
| download | mruby-30df7c87624692227a24eee7ed7c2507b249e6e5.tar.gz mruby-30df7c87624692227a24eee7ed7c2507b249e6e5.zip | |
Fix segmentation fault ref: #3648
Diffstat (limited to 'mrbgems/mruby-sprintf/src/sprintf.c')
| -rw-r--r-- | mrbgems/mruby-sprintf/src/sprintf.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/mrbgems/mruby-sprintf/src/sprintf.c b/mrbgems/mruby-sprintf/src/sprintf.c index 080e2549d..8df0d9360 100644 --- a/mrbgems/mruby-sprintf/src/sprintf.c +++ b/mrbgems/mruby-sprintf/src/sprintf.c @@ -982,15 +982,17 @@ retry: } if (dots) PUSH("..", 2); - if (v < 0) { - char c = sign_bits(base, p); - FILL(c, prec - len); - } - else if ((flags & (FMINUS|FPREC)) != FMINUS) { - char c = '0'; - FILL(c, prec - len); + if (prec > len) { + CHECK(prec - len); + if (v < 0) { + char c = sign_bits(base, p); + FILL(c, prec - len); + } + else if ((flags & (FMINUS|FPREC)) != FMINUS) { + char c = '0'; + FILL(c, prec - len); + } } - PUSH(s, len); if (width > 0) { FILL(' ', width); |