These are rules and recommendations for functions that are defined as part of the POSIX family of standards but are not included in ISO/IEC 9899-1999.
Rules
POS30-C. Use the readlink() function properly
POS31-C. Do not unlock or destroy another process's mutex
Risk Assessment
Rule  | 
Severity  | 
Likelihood  | 
Remediation Cost  | 
Priority  | 
Level  | 
|---|---|---|---|---|---|
POS31-C  | 
2 (medium)  | 
1 (unlikely)  | 
1 (high)  | 
P2  | 
L3  |