Rule Definition
The variable that contains the IOSTAT return code value must be tested to ensure properly handling of any errors in the read/write that may have occurred. Dont assume that the operation is successful.
Remediation
Make sure that all variables containing the return code value for a read, write or open opetation are actually tested to make sure the these operations are successful or not.
Reference
IOSTAT= ios is an input/output status specifier that specifies the status of the input/output operation. ios is a scalar variable. When the input/output statement containing this specifier finishes execution, ios is defined with: A zero value if no error condition occurs. A positive value if an error occurs.
Related Technologies
Technical Criterion
CWE-252 - Unchecked Return Value [Base]
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