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PUTPWENT(3) Linux Programmer's Manual PUTPWENT(3) NAME putpwent - write a password file entry SYNOPSIS #include <stdio.h> #include <sys/types.h> #include <pwd.h> int putpwent(const struct passwd *restrict p, FILE *restrict stream); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): putpwent(): Since glibc 2.19: _DEFAULT_SOURCE Glibc 2.19 and earlier: _SVID_SOURCE 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; /* username */ 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. On failure, it returns -1, and errno is set to indicate the error. ERRORS EINVAL Invalid (NULL) argument given. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ¬ββββββββββββββββ¬βββββββββββββββββ βInterface β Attribute β Value β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββΌββββββββββββββββΌβββββββββββββββββ€ βputpwent() β Thread safety β MT-Safe locale β βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ΄ββββββββββββββββ΄βββββββββββββββββ CONFORMING TO SVr4. SEE ALSO endpwent(3), fgetpwent(3), getpw(3), getpwent(3), getpwnam(3), getpwuid(3), setpwent(3) GNU 2021-03-22 PUTPWENT(3)