putpwent - Online Linux Manual PageSection : 3
Updated : 2023-02-05
Source : Linux man-pages 6.03

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NAMEputpwent − write a password file entry

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LIBRARYStandard C library (libc, −lc)

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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

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DESCRIPTIONThe 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 */ };

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RETURN VALUEThe putpwent() function returns 0 on success. On failure, it returns −1, and errno is set to indicate the error.

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ERRORSEINVAL  Invalid (NULL) argument given.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue putpwent() Thread safetyMT-Safe locale

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STANDARDSSVr4.

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SEE ALSOendpwent(3), fgetpwent(3), getpw(3), getpwent(3), getpwnam(3), getpwuid(3), setpwent(3) 0

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