Date: Thu, 7 Sep 2017 00:20:17 +0000 (UTC) From: David Bright <dab@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r323252 - head/libexec/getty Message-ID: <201709070020.v870KHpO032436@repo.freebsd.org>
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Author: dab Date: Thu Sep 7 00:20:17 2017 New Revision: 323252 URL: https://svnweb.freebsd.org/changeset/base/323252 Log: Add a new getty/gettytab capability to generate an initial message dynamically. This modification adds a new gettytab(5) option (iM) to specify a program to run that will generate the initial (banner) message that is displayed before the login prompt. Such a capability is useful when dynamic information is needed in the banner message that cannot be supplied by the set of % substitution sequences available in the "im" option. Reviewed by: vangyzen, wblock, manpages Approved by: vangyzen (mentor) MFC after: 1 week Relnotes: yes Sponsored by: Dell EMC Differential Revision: https://reviews.freebsd.org/D12108 Modified: head/libexec/getty/gettytab.5 head/libexec/getty/gettytab.h head/libexec/getty/init.c head/libexec/getty/main.c Modified: head/libexec/getty/gettytab.5 ============================================================================== --- head/libexec/getty/gettytab.5 Wed Sep 6 23:43:20 2017 (r323251) +++ head/libexec/getty/gettytab.5 Thu Sep 7 00:20:17 2017 (r323252) @@ -28,7 +28,7 @@ .\" from: @(#)gettytab.5 8.4 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" " -.Dd February 2, 2017 +.Dd August 23, 2017 .Dt GETTYTAB 5 .Os .Sh NAME @@ -130,6 +130,8 @@ hangup line on last close .It "ig bool false ignore garbage characters in login name" .It "im str" Ta Dv NULL .Ta No "initial (banner) message" +.It "iM str" Ta Dv NULL +.Ta No "execute named file to generate initial (banner) message" .It "in str" Ta So Li ^C .Sc Ta No "interrupt character" .It "is num unused input speed" @@ -146,7 +148,7 @@ hangup line on last close .It "mb bool false do flow control based on carrier" .It "nc bool false terminal does not supply carrier (set clocal)" .It "nl bool false terminal has (or might have) a newline character" -.It "np bool false terminal uses no parity (i.e. 8-bit characters)" +.It "np bool false terminal uses no parity (i.e., 8-bit characters)" .It "nx str default next table (for auto speed selection)" .It "o0 num unused tty output flags to write messages" .It "o1 num unused tty output flags to read login name" Modified: head/libexec/getty/gettytab.h ============================================================================== --- head/libexec/getty/gettytab.h Wed Sep 6 23:43:20 2017 (r323251) +++ head/libexec/getty/gettytab.h Thu Sep 7 00:20:17 2017 (r323252) @@ -88,6 +88,7 @@ struct gettyflags { #define AC gettystrs[28].value #define AL gettystrs[29].value #define DF gettystrs[30].value +#define IMP gettystrs[31].value /* * Numeric definitions. Modified: head/libexec/getty/init.c ============================================================================== --- head/libexec/getty/init.c Wed Sep 6 23:43:20 2017 (r323251) +++ head/libexec/getty/init.c Thu Sep 7 00:20:17 2017 (r323252) @@ -82,6 +82,7 @@ struct gettystrs gettystrs[] = { { "ac" }, /* modem answer-chat */ { "al" }, /* user to auto-login */ { "df", datefmt}, /* format for strftime() */ + { "iM" }, /* initial message program */ { 0 } }; Modified: head/libexec/getty/main.c ============================================================================== --- head/libexec/getty/main.c Wed Sep 6 23:43:20 2017 (r323251) +++ head/libexec/getty/main.c Thu Sep 7 00:20:17 2017 (r323252) @@ -324,6 +324,8 @@ main(int argc, char *argv[]) } first_time = 0; + if (IMP && *IMP && !(PL && PP)) + system(IMP); if (IM && *IM && !(PL && PP)) putf(IM); if (setjmp(timeout)) {
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