SEI CERT C Coding Standard

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changes.mady.by.user Aleksandr Karbyshev

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changes.mady.by.user Caden Milne

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Comment: Updated references from C11->C23

The C Standard, 7.2123.5.3, paragraph 7 [ISO/IEC 9899:20112024], places the following restrictions on update streams:

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Tool

Version

Checker

Description

Astrée
Include Page
Astrée_V
Astrée_V

Supported, but no explicit checker
Axivion Bauhaus Suite

Include Page
Axivion Bauhaus Suite_V
Axivion Bauhaus Suite_V

CertC-FIO39
CodeSonar
Include Page
CodeSonar_V
CodeSonar_V

IO.IOWOP
IO.OIWOP

Input After Output Without Positioning
Output After Input Without Positioning

Compass/ROSE

Can detect simple violations of this rule

Helix QAC

Include Page
Helix QAC_V
Helix QAC_V

C4711DF4711, C4712, C4713C++4711, C++4712, C++4713DF4712, DF4713


Klocwork

Include Page
Klocwork_V
Klocwork_V

CERT.FIO.NO_FLUSH


LDRA tool suite
Include Page
LDRA_V
LDRA_V

84 D

Fully implemented
Parasoft C/C++test

Include Page
Parasoft_V
Parasoft_V

CERT_C-FIO39-a

Do not alternately input and output from a stream without an intervening flush or positioning call
PC-lint Plus

Include Page
PC-lint Plus_V
PC-lint Plus_V

2478, 2479

Fully supported

Polyspace Bug Finder

Include Page
Polyspace Bug Finder_V
Polyspace Bug Finder_V

CERT C: Rule FIO39-CChecks for alternating input and output from a stream without flush or positioning call (rule fully covered)PRQA QA-C
Include Page
PRQA QA-C_vPRQA QA-C_v5029

Related Vulnerabilities

Search for vulnerabilities resulting from the violation of this rule on the CERT website.

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Bibliography

[ISO/IEC 9899:20112024]7.2123.5.3, "The fopen Function"


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