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author | Ondřej Bílka <neleai@seznam.cz> | 2013-12-04 02:02:25 +0100 |
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committer | Ondřej Bílka <neleai@seznam.cz> | 2013-12-04 02:41:12 +0100 |
commit | d674f0ef3898c0d1fd5cec76c1c736d9cd9bc7d1 (patch) | |
tree | b6a4f57e8e469c61fb3b81e7903961d50a4203f3 /debug/strncpy_chk.c | |
parent | 6905a19f7a8443950f105b6716f6b4b1f98c4dbd (diff) | |
download | glibc-d674f0ef3898c0d1fd5cec76c1c736d9cd9bc7d1.zip glibc-d674f0ef3898c0d1fd5cec76c1c736d9cd9bc7d1.tar.gz glibc-d674f0ef3898c0d1fd5cec76c1c736d9cd9bc7d1.tar.bz2 |
Refactor several debug routines.
To simplify additions of debug routines we replace a custom function
implementation by a simple call.
Diffstat (limited to 'debug/strncpy_chk.c')
-rw-r--r-- | debug/strncpy_chk.c | 57 |
1 files changed, 1 insertions, 56 deletions
diff --git a/debug/strncpy_chk.c b/debug/strncpy_chk.c index d067bd9..2e078b1 100644 --- a/debug/strncpy_chk.c +++ b/debug/strncpy_chk.c @@ -26,63 +26,8 @@ __strncpy_chk (s1, s2, n, s1len) size_t n; size_t s1len; { - char c; - char *s = s1; - if (__builtin_expect (s1len < n, 0)) __chk_fail (); - --s1; - - if (n >= 4) - { - size_t n4 = n >> 2; - - for (;;) - { - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - c = *s2++; - *++s1 = c; - if (c == '\0') - break; - if (--n4 == 0) - goto last_chars; - } - n = n - (s1 - s) - 1; - if (n == 0) - return s; - goto zero_fill; - } - - last_chars: - n &= 3; - if (n == 0) - return s; - - do - { - c = *s2++; - *++s1 = c; - if (--n == 0) - return s; - } - while (c != '\0'); - - zero_fill: - do - *++s1 = '\0'; - while (--n > 0); - - return s; + return strncpy (s1, s2, n); } |