shell bypass 403
/*
* username.h
* lookup effective username
*
* Copyright (c) 2003-2018, PostgreSQL Global Development Group
*
* src/include/common/username.h
*/
#ifndef USERNAME_H
#define USERNAME_H
extern const char *get_user_name(char **errstr);
extern const char *get_user_name_or_exit(const char *progname);
#endif /* USERNAME_H */