Date: Tue, 11 Aug 2015 07:11:24 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 202240] fwscanf return EOF instead of ZERO in the event of matching failure Message-ID: <bug-202240-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202240 Bug ID: 202240 Summary: fwscanf return EOF instead of ZERO in the event of matching failure Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: rajendra.sy@gmail.com Created attachment 159753 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=159753&action=edit Source file compares fwscanf & fscanf return values The function fwscanf() return value is wrong incase of invalid input character. For example: int ret = fwscanf(fptr, L"j%s", buf); The above call should return ZERO for matching failure. Possible fix: --- a/lib/libc/stdio/vfwscanf.c +++ b/lib/libc/stdio/vfwscanf.c @@ -492,7 +492,7 @@ literal: goto input_failure; if (wi != c) { __ungetwc(wi, fp, locale); - goto input_failure; + goto match_failure; } nread++; continue; The fscanf() function behaves correctly. Compared the source of both functions confirms the return is value is wrong. Attached a source file to reproduce the problem. -- You are receiving this mail because: You are the assignee for the bug.
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