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diff --git a/man1/getent.1 b/man1/getent.1 new file mode 100644 index 0000000..1168fc5 --- /dev/null +++ b/man1/getent.1 @@ -0,0 +1,382 @@ +.\" Copyright (c) 2011, Mark R. Bannister <cambridge@users.sourceforge.net> +.\" Copyright (c) 2015, Robin H. Johnson <robbat2@gentoo.org> +.\" +.\" SPDX-License-Identifier: GPL-2.0-or-later +.\" +.TH getent 1 2023-01-07 "Linux man-pages 6.05.01" +.SH NAME +getent \- get entries from Name Service Switch libraries +.SH SYNOPSIS +.nf +.B getent [\fIoption\fP]... \fIdatabase\fP \fIkey\fP... +.fi +.SH DESCRIPTION +The +.B getent +command displays entries from databases supported by the +Name Service Switch libraries, +which are configured in +.IR /etc/nsswitch.conf . +If one or more +.I key +arguments are provided, +then only the entries that match the supplied keys will be displayed. +Otherwise, if no +.I key +is provided, all entries will be displayed (unless the database does not +support enumeration). +.PP +The +.I database +may be any of those supported by the GNU C Library, listed below: +.RS 3 +.TP 10 +.B ahosts +When no +.I key +is provided, use +.BR sethostent (3), +.BR gethostent (3), +and +.BR endhostent (3) +to enumerate the hosts database. +This is identical to using +.BR hosts . +When one or more +.I key +arguments are provided, pass each +.I key +in succession to +.BR getaddrinfo (3) +with the address family +.BR AF_UNSPEC , +enumerating each socket address structure returned. +.TP +.B ahostsv4 +Same as +.BR ahosts , +but use the address family +.BR AF_INET . +.TP +.B ahostsv6 +Same as +.BR ahosts , +but use the address family +.BR AF_INET6 . +The call to +.BR getaddrinfo (3) +in this case includes the +.B AI_V4MAPPED +flag. +.TP +.B aliases +When no +.I key +is provided, use +.BR setaliasent (3), +.BR getaliasent (3), +and +.BR endaliasent (3) +to enumerate the aliases database. +When one or more +.I key +arguments are provided, pass each +.I key +in succession to +.BR getaliasbyname (3) +and display the result. +.TP +.B ethers +When one or more +.I key +arguments are provided, pass each +.I key +in succession to +.BR ether_aton (3) +and +.BR ether_hostton (3) +until a result is obtained, and display the result. +Enumeration is not supported on +.BR ethers , +so a +.I key +must be provided. +.TP +.B group +When no +.I key +is provided, use +.BR setgrent (3), +.BR getgrent (3), +and +.BR endgrent (3) +to enumerate the group database. +When one or more +.I key +arguments are provided, pass each numeric +.I key +to +.BR getgrgid (3) +and each nonnumeric +.I key +to +.BR getgrnam (3) +and display the result. +.TP +.B gshadow +When no +.I key +is provided, use +.BR setsgent (3), +.BR getsgent (3), +and +.BR endsgent (3) +to enumerate the gshadow database. +When one or more +.I key +arguments are provided, pass each +.I key +in succession to +.BR getsgnam (3) +and display the result. +.TP +.B hosts +When no +.I key +is provided, use +.BR sethostent (3), +.BR gethostent (3), +and +.BR endhostent (3) +to enumerate the hosts database. +When one or more +.I key +arguments are provided, pass each +.I key +to +.BR gethostbyaddr (3) +or +.BR gethostbyname2 (3), +depending on whether a call to +.BR inet_pton (3) +indicates that the +.I key +is an IPv6 or IPv4 address or not, and display the result. +.TP +.B initgroups +When one or more +.I key +arguments are provided, pass each +.I key +in succession to +.BR getgrouplist (3) +and display the result. +Enumeration is not supported on +.BR initgroups , +so a +.I key +must be provided. +.TP +.B netgroup +When one +.I key +is provided, pass the +.I key +to +.BR setnetgrent (3) +and, using +.BR getnetgrent (3) +display the resulting string triple +.RI ( hostname ", " username ", " domainname ). +Alternatively, three +.I keys +may be provided, which are interpreted as the +.IR hostname , +.IR username , +and +.I domainname +to match to a netgroup name via +.BR innetgr (3). +Enumeration is not supported on +.BR netgroup , +so either one or three +.I keys +must be provided. +.TP +.B networks +When no +.I key +is provided, use +.BR setnetent (3), +.BR getnetent (3), +and +.BR endnetent (3) +to enumerate the networks database. +When one or more +.I key +arguments are provided, pass each numeric +.I key +to +.BR getnetbyaddr (3) +and each nonnumeric +.I key +to +.BR getnetbyname (3) +and display the result. +.TP +.B passwd +When no +.I key +is provided, use +.BR setpwent (3), +.BR getpwent (3), +and +.BR endpwent (3) +to enumerate the passwd database. +When one or more +.I key +arguments are provided, pass each numeric +.I key +to +.BR getpwuid (3) +and each nonnumeric +.I key +to +.BR getpwnam (3) +and display the result. +.TP +.B protocols +When no +.I key +is provided, use +.BR setprotoent (3), +.BR getprotoent (3), +and +.BR endprotoent (3) +to enumerate the protocols database. +When one or more +.I key +arguments are provided, pass each numeric +.I key +to +.BR getprotobynumber (3) +and each nonnumeric +.I key +to +.BR getprotobyname (3) +and display the result. +.TP +.B rpc +When no +.I key +is provided, use +.BR setrpcent (3), +.BR getrpcent (3), +and +.BR endrpcent (3) +to enumerate the rpc database. +When one or more +.I key +arguments are provided, pass each numeric +.I key +to +.BR getrpcbynumber (3) +and each nonnumeric +.I key +to +.BR getrpcbyname (3) +and display the result. +.TP +.B services +When no +.I key +is provided, use +.BR setservent (3), +.BR getservent (3), +and +.BR endservent (3) +to enumerate the services database. +When one or more +.I key +arguments are provided, pass each numeric +.I key +to +.BR getservbynumber (3) +and each nonnumeric +.I key +to +.BR getservbyname (3) +and display the result. +.TP +.B shadow +When no +.I key +is provided, use +.BR setspent (3), +.BR getspent (3), +and +.BR endspent (3) +to enumerate the shadow database. +When one or more +.I key +arguments are provided, pass each +.I key +in succession to +.BR getspnam (3) +and display the result. +.RE +.SH OPTIONS +.TP +.BR \-s\ \fIservice\fP ", " \-\-service\ \fIservice\fP +.\" commit 9d0881aa76b399e6a025c5cf44bebe2ae0efa8af (glibc) +Override all databases with the specified service. +(Since glibc 2.2.5.) +.TP +.BR \-s\ \fIdatabase\fP:\fIservice\fP ", "\ +\-\-service\ \fIdatabase\fP:\fIservice\fP +.\" commit b4f6f4be85d32b9c03361c38376e36f08100e3e8 (glibc) +Override only specified databases with the specified service. +The option may be used multiple times, +but only the last service for each database will be used. +(Since glibc 2.4.) +.TP +.BR \-i ", " \-\-no\-idn +.\" commit a160f8d808cf8020b13bd0ef4a9eaf3c11f964ad (glibc) +Disables IDN encoding in lookups for +.BR ahosts / getaddrinfo (3) +(Since glibc-2.13.) +.TP +.BR \-? ", " \-\-help +Print a usage summary and exit. +.TP +.B "\-\-usage" +Print a short usage summary and exit. +.TP +.BR \-V ", " \-\-version +Print the version number, license, and disclaimer of warranty for +.BR getent . +.SH EXIT STATUS +One of the following exit values can be returned by +.BR getent : +.RS 3 +.TP +.B 0 +Command completed successfully. +.TP +.B 1 +Missing arguments, or +.I database +unknown. +.TP +.B 2 +One or more supplied +.I key +could not be found in the +.IR database . +.TP +.B 3 +Enumeration not supported on this +.IR database . +.RE +.SH SEE ALSO +.BR nsswitch.conf (5) |