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fixup! Check return value from snprintf(); ref #3498

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Yukihiro "Matz" Matsumoto
2017-03-11 15:22:42 +09:00
parent e3922318bd
commit f30ec2dfb0
1 changed files with 4 additions and 1 deletions
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mrbgems/mruby-sprintf/src/sprintf.c
+4 -1
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@@ -1049,7 +1049,10 @@ retry:
need = width;
CHECK(need + 1);
snprintf(&buf[blen], need + 1, "%*s", need, "");
n = snprintf(&buf[blen], need + 1, "%*s", need, "");
if (n < 0) {
mrb_raise(mrb, E_RUNTIME_ERROR, "formatting error");
}
if (flags & FMINUS) {
if (!isnan(fval) && fval < 0.0)
buf[blen++] = '-';