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BUG: Prevent crash when strerror fails

This commit is contained in:
Andy Cedilnik 2004-10-05 17:02:44 -04:00
parent decb1ac05f
commit f47690ecaa
1 changed files with 10 additions and 1 deletions
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11
Source/CTest/Curl/strerror.c
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@ -539,11 +539,20 @@ const char *Curl_strerror(struct connectdata *conn, int err)
/* this version of strerror_r() only *might* use the buffer we pass to /* this version of strerror_r() only *might* use the buffer we pass to
the function, but it always returns the error message as a pointer, the function, but it always returns the error message as a pointer,
so we must copy that string unconditionally */ so we must copy that string unconditionally */
if ( !msg )
{
msg = "Unknown System Error";
}
strncpy(buf, msg, max); strncpy(buf, msg, max);
} }
#endif /* end of HAVE_GLIBC_STRERROR_R */ #endif /* end of HAVE_GLIBC_STRERROR_R */
#else /* HAVE_STRERROR_R */ #else /* HAVE_STRERROR_R */
strncpy(buf, strerror(err), max); char *msg = strerror(err);
if ( !msg )
{
msg = "Unknown System Error";
}
strncpy(buf, msg, max);
#endif /* end of HAVE_STRERROR_R */ #endif /* end of HAVE_STRERROR_R */
#endif /* end of ! Windows */ #endif /* end of ! Windows */