Page Information

Title:	FIO24-C. Do not open a file that is already open
Author:	Justin Pincar	Jun 08, 2007
Last Changed by:	David Svoboda	May 20, 2025
Tiny Link: (useful for email)	https://wiki.sei.cmu.edu/confluence/x/CtYxBQ
Export As:	Word · PDF

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

SEI CERT C Coding Standard (1)     Page: FIO41-C. Do not call getc(), putc(), getwc(), or putwc() with a stream argument that has side effects

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

• review-dms
• review
• fio
• android-unknown
• cwe-675
• review-rcs
• recommendation
• review-ajb
• cwe-362

Time	Editor
May 20, 2025 09:53	David Svoboda	View Changes
May 20, 2025 08:23	David Svoboda	View Changes
REM Cost Reform
Apr 05, 2024 15:44	David Svoboda	View Changes
Jul 27, 2023 14:18	Jon O'Donnell	View Changes
Feb 13, 2023 15:29	David Svoboda
removed "search for vuls" since that is dead

External Links (9)
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    cwe.mitre.org/data/definitions/675.html
    https://wiki.sei.cmu.edu/confluence/display/c/Polyspace+Bug…
    https://wiki.sei.cmu.edu/confluence/pages/viewpage.action?p…
    cwe.mitre.org/data/definitions/362.html
    cwe.mitre.org/
    https://www.mathworks.com/help/bugfinder/ref/certcrec.fio24…
    https://wiki.sei.cmu.edu/confluence/display/c/SEI+CERT+C+Co…

SEI CERT C Coding Standard (11)     Page: CodeSonar_V     Page: CodeSonar     Page: Parasoft_V     Page: Polyspace Bug Finder_V     Page: LDRA     Page: AA. Bibliography     Page: LDRA_V     Page: BB. Definitions     Page: FIO45-C. Avoid TOCTOU race conditions while accessing files     Home page: SEI CERT C Coding Standard     Page: Parasoft

SEI CERT C++ Coding Standard (2)     Home page: SEI CERT C++ Coding Standard     Page: VOID FIO21-CPP. Do not simultaneously open the same file multiple times