Sure
Klemens Nanni <k...@openbsd.org> wrote:
> Everytime I check ramdisks I wonder of what use the ksh string is:
> $ what bsd.rd
> bsd.rd:
> OpenBSD 7.2-current (RAMDISK_CD) #965: Sun Feb 5 09:58:01 MST
> 2023
> PD KSH v5.2.14 99/07/13.2
> $OpenBSD: cert.pem,v 1.25 2022/07/11 09:05:16 sthen Exp $
>
> ksh(1) says
> KSH_VERSION
> The version of the shell and the date the version was created
> (read-only).
>
> The installer does not care about SH_VERSION or KSH_VERSION or \V and \v PS1
> escape sequences for full and short version strings.
>
> Disable it with SMALL to save a few bits and get
> $ what obj/bsd.rd
> obj/bsd.rd:
> OpenBSD 7.2-current (RAMDISK_CD) #5: Wed Feb 8 04:10:37 CET
> 2023
> $OpenBSD: cert.pem,v 1.25 2022/07/11 09:05:16 sthen Exp $
>
>
> Feedback? Objection? OK?
>
>
> Index: bin/ksh/lex.c
> ===================================================================
> RCS file: /cvs/src/bin/ksh/lex.c,v
> retrieving revision 1.78
> diff -u -p -r1.78 lex.c
> --- bin/ksh/lex.c 15 Jan 2018 14:58:05 -0000 1.78
> +++ bin/ksh/lex.c 8 Feb 2023 02:47:26 -0000
> @@ -1335,6 +1335,7 @@ dopprompt(const char *sp, int ntruncate,
> case 'u': /* '\' 'u' username */
> strlcpy(strbuf, username, sizeof strbuf);
> break;
> +#ifndef SMALL
> case 'v': /* '\' 'v' version (short) */
> p = strchr(ksh_version, ' ');
> if (p)
> @@ -1350,6 +1351,7 @@ dopprompt(const char *sp, int ntruncate,
> case 'V': /* '\' 'V' version (long) */
> strlcpy(strbuf, ksh_version, sizeof strbuf);
> break;
> +#endif /* SMALL */
> case 'w': /* '\' 'w' cwd */
> p = str_val(global("PWD"));
> n = strlen(str_val(global("HOME")));
> Index: bin/ksh/main.c
> ===================================================================
> RCS file: /cvs/src/bin/ksh/main.c,v
> retrieving revision 1.98
> diff -u -p -r1.98 main.c
> --- bin/ksh/main.c 28 Jun 2019 13:34:59 -0000 1.98
> +++ bin/ksh/main.c 8 Feb 2023 02:53:49 -0000
> @@ -81,7 +81,9 @@ static const char initifs[] = "IFS= \t\n
> static const char initsubs[] = "${PS2=> } ${PS3=#? } ${PS4=+ }";
>
> static const char *initcoms [] = {
> +#ifndef SMALL
> "typeset", "-r", "KSH_VERSION", NULL,
> +#endif /* SMALL */
> "typeset", "-x", "SHELL", "PATH", "HOME", "PWD", "OLDPWD", NULL,
> "typeset", "-ir", "PPID", NULL,
> "typeset", "-i", "OPTIND=1", NULL,
> @@ -110,7 +112,9 @@ static const char *initcoms [] = {
>
> char username[_PW_NAME_LEN + 1];
>
> +#ifndef SMALL
> #define version_param (initcoms[2])
> +#endif /* SMALL */
>
> /* The shell uses its own variation on argv, to build variables like
> * $0 and $@.
> @@ -247,7 +251,9 @@ main(int argc, char *argv[])
> (strlen(kshname) >= 3 &&
> !strcmp(&kshname[strlen(kshname) - 3], "/sh"))) {
> Flag(FSH) = 1;
> +#ifndef SMALL
> version_param = "SH_VERSION";
> +#endif /* SMALL */
> }
>
> /* Set edit mode to emacs by default, may be overridden
> @@ -296,8 +302,10 @@ main(int argc, char *argv[])
> }
> ppid = getppid();
> setint(global("PPID"), (int64_t) ppid);
> +#ifndef SMALL
> /* setstr can't fail here */
> setstr(global(version_param), ksh_version, KSH_RETURN_ERROR);
> +#endif /* SMALL */
>
> /* execute initialization statements */
> for (wp = (char**) initcoms; *wp != NULL; wp++) {
> Index: distrib/special/ksh/Makefile
> ===================================================================
> RCS file: /cvs/src/distrib/special/ksh/Makefile,v
> retrieving revision 1.5
> diff -u -p -r1.5 Makefile
> --- distrib/special/ksh/Makefile 1 Aug 2017 14:30:07 -0000 1.5
> +++ distrib/special/ksh/Makefile 8 Feb 2023 02:45:49 -0000
> @@ -4,7 +4,7 @@ PROG= ksh
> SRCS= alloc.c c_ksh.c c_sh.c c_test.c c_ulimit.c edit.c emacs.c
> eval.c \
> exec.c expr.c history.c io.c jobs.c lex.c mail.c main.c \
> misc.c path.c shf.c syn.c table.c trap.c tree.c tty.c var.c \
> - version.c vi.c
> + vi.c
>
> DEFS= -Wall -DEMACS -DSMALL
> CFLAGS+=${DEFS} -I. -I${.CURDIR}/../../../bin/ksh
> -I${.CURDIR}/../../../lib/libc/gen
>
