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* util.c (rv_strdup): macro to duplicate nul-terminated string.

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[ruby-core:22852]

* util.c (ruby_dtoa): allocates one more byte to get rid of buffer
  overrun.  a patch from Charlie Savage at [ruby-core:22604].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@22947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2009-03-14 05:21:58 +00:00
parent 694d70cace
commit a8e795ca53
2 changed files with 14 additions and 4 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
Sat Mar 14 14:21:56 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* util.c (rv_strdup): macro to duplicate nul-terminated string.
[ruby-core:22852]
* util.c (ruby_dtoa): allocates one more byte to get rid of buffer
overrun. a patch from Charlie Savage at [ruby-core:22604].
Fri Mar 13 19:44:21 2009 Yukihiro Matsumoto <matz@ruby-lang.org>
* eval.c (rb_call0): should pass rest argument information even

10
util.c
View file

@ -3116,13 +3116,15 @@ nrv_alloc(const char *s, char **rve, int n)
{
char *rv, *t;
t = rv = rv_alloc(n);
t = rv = rv_alloc(n+1);
while ((*t = *s++) != 0) t++;
if (rve)
*rve = t;
return rv;
}
#define rv_strdup(s, rve) nrv_alloc(s, rve, strlen(s)+1)
/* freedtoa(s) must be used to free values s returned by dtoa
* when MULTIPLE_THREADS is #defined. It should be used in all cases,
* but for consistency with earlier versions of dtoa, it is optional
@ -3256,9 +3258,9 @@ dtoa(double d, int mode, int ndigits, int *decpt, int *sign, char **rve)
*decpt = 9999;
#ifdef IEEE_Arith
if (!word1(d) && !(word0(d) & 0xfffff))
return nrv_alloc("Infinity", rve, 8);
return rv_strdup("Infinity", rve);
#endif
return nrv_alloc("NaN", rve, 3);
return rv_strdup("NaN", rve);
}
#endif
#ifdef IBM
@ -3266,7 +3268,7 @@ dtoa(double d, int mode, int ndigits, int *decpt, int *sign, char **rve)
#endif
if (!dval(d)) {
*decpt = 1;
return nrv_alloc("0", rve, 1);
return rv_strdup("0", rve);
}
#ifdef SET_INEXACT