pollution: endpwent
void endpwent(void); 

pollution: getpwent
struct passwd *getpwent(void); 

pollution: name
struct passwd *getpwnam(const char *name); 

pollution: name
pollution: out
pollution: buf
pollution: size
pollution: result
int getpwnam_r(const char *name, struct passwd *out, char *buf, size_t size, struct passwd **result); 

pollution: uid
struct passwd *getpwuid(uid_t uid); 

pollution: uid
pollution: out
pollution: buf
pollution: size
pollution: result
int getpwuid_r(uid_t uid, struct passwd *out, char *buf, size_t size, struct passwd **result); 

pollution: setpwent
void setpwent(void);