BADFUNC.GETENV : Use of getenv

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A use of getenv(), which has undefined behaviors.

Class Name

Use of getenv

Significance

style

Mnemonic

BADFUNC.GETENV

Categories

MisraC2023	MisraC2023:21.8	The Standard Library termination functions of <stdlib.h> shall not be used
Misra2012	Misra2012:21.8	The Standard Library termination functions of <stdlib.h> shall not be used
Misra2004	Misra2004:20.11	The library functions abort, exit, getenv and system from library <stdlib.h> shall not be used
AUTOSARC++14	AUTOSARC++14:M18-0-3	The library functions abort, exit, getenv and system from library <cstdlib> shall not be used.
MisraC++2008	MisraC++2008:18-0-3	The library functions abort, exit, getenv and system from library <cstdlib> shall not be used.
CWE	CWE:676	Use of Potentially Dangerous Function
	CWE:758	Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
CERT-C	CERT-C:ENV30-C	Do not modify the object referenced by the return value of certain functions
JSF++	JSF++:24	The library functions abort, exit, getenv and system from library <stdlib.h> shall not be used.

Availability

Available for C and C++.

Enabling

Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += allow class="Use of getenv"

char * getpath(void){
  return getenv("PATH"); /* 'Use of getenv' warning issued here */
}

To include an additional function or set of functions in the checks for this class, create a new set of BAD_FUNCTION_* rules in which the BAD_FUNCTION_REGEX setting matches the function or set of functions you want to check and the remaining rules match those in the other sets for this class.

To remove a function or set of functions from the checks for this class, edit the configuration file to comment out the corresponding set of BAD_FUNCTION_* rules.

The following configuration file parameters affect checks for this warning class.

BADFUNC.GETENV : Use of getenv

Summary

Properties

Example

Relevant Configuration File Parameters