Page Information

Title:	FIO03-C. Do not make assumptions about fopen() and file creation
Author:	Jeffrey Gennari	Sep 26, 2006
Last Changed by:	Richard W. Laughlin	Jun 16, 2025
Tiny Link: (useful for email)	https://wiki.sei.cmu.edu/confluence/x/-tYxBQ
Export As:	Word · PDF

SEI CERT C Coding Standard (3)     Page: FIO01-C. Be careful using functions that use file names for identification     Page: POS05-C. Limit access to files by creating a jail     Page: POS01-C. Check for the existence of links when dealing with files

Android (1)     Page: Unknown Applicability (C Rules/Recomendations)

Parent Page     Page: Rec. 09. Input Output (FIO)

• fio
• android-unknown
• unenforceable
• recommendation

Time	Editor
Jun 16, 2025 13:23	Richard W. Laughlin	View Changes
Added section for C11 fopen("x") compliant solution.
May 29, 2025 15:19	Richard W. Laughlin	View Changes
Removed references to Annex K.
May 20, 2025 08:15	David Svoboda	View Changes
REM Cost Reform
Mar 04, 2025 16:31	Anirban Gangopadhyay	View Changes
Apr 20, 2023 06:08	Jill Britton

External Links (9)
    msdn.microsoft.com/en-us/library/windows/desktop/aa363858(v…
    www.gnu.org/software/libc/manual/html_node/Opening-Streams.…
    https://wiki.sei.cmu.edu/confluence/display/c/Polyspace+Bug…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://www.mathworks.com/help/bugfinder/ref/certcrec.fio03…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    www.ietf.org/rfc/rfc1813.txt
    https://www.kb.cert.org/vulnotes/bymetric?searchview&query=…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…

SEI CERT C Coding Standard (10)     Page: Coverity     Page: LDRA_V     Page: BB. Definitions     Page: Helix QAC     Page: LDRA     Home page: SEI CERT C Coding Standard     Page: AA. Bibliography     Page: Helix QAC_V     Page: Polyspace Bug Finder_V     Page: FIO10-C. Take care when using the rename() function

SEI CERT C++ Coding Standard (2)     Page: VOID FIO03-CPP. Do not make assumptions about fopen() and file creation     Home page: SEI CERT C++ Coding Standard