PUTPWENT Section: Linux Programmer's Manual (3) Updated: April 9, 2025 Index   NAME putpwent - write a password file entry   SYNOPSIS #include <pwd.h> #include <stdio.h> #include <sys/types.h> int putpwent(const struct passwd *p, FILE *stream);   DESCRIPTION The putpwent() function writes a password entry from the structure p in the file associated with stream. The passwd structure is defined in <pwd.h> as follows: struct passwd { char *pw_name; /* user name */ char *pw_passwd; /* user password */ uid_t pw_uid; /* user id */ gid_t pw_gid; /* group id */ char *pw_gecos; /* real name */ char *pw_dir; /* home directory */ char *pw_shell; /* shell program */ };   RETURN VALUE The putpwent() function returns 0 on success, or -1 if an error occurs.   ERRORS EINVAL Invalid (NULL) argument given.   CONFORMING TO SVID 3   SEE ALSO   Index NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS CONFORMING TO SEE ALSO This document was created by using the manual pages. Time: 11:58:05 GMT, March 24, 2025