The <pwd.h> header shall provide a definition for struct passwd, which shall include at least the following members:
char *pw_name User's login name. uid_t pw_uid Numerical user ID. gid_t pw_gid Numerical group ID. char *pw_dir Initial working directory. char *pw_shell Program to use as shell.
The gid_t and uid_t types shall be defined as described in <sys/types.h> .
The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.
struct passwd *getpwnam(const char *); struct passwd *getpwuid(uid_t); int getpwnam_r(const char *, struct passwd *, char *, size_t, struct passwd **); int getpwuid_r(uid_t, struct passwd *, char *, size_t, struct passwd **); void endpwent(void); struct passwd *getpwent(void); void setpwent(void);
The following sections are informative.
COPYRIGHTPortions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .