Date: Thu, 7 Jan 2016 23:13:21 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r293392 - head/bin/sh Message-ID: <201601072313.u07NDLNH088555@repo.freebsd.org>
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Author: jilles Date: Thu Jan 7 23:13:20 2016 New Revision: 293392 URL: https://svnweb.freebsd.org/changeset/base/293392 Log: sh: Reduce size of options table. Modified: head/bin/sh/expand.c head/bin/sh/options.c head/bin/sh/options.h head/bin/sh/var.c Modified: head/bin/sh/expand.c ============================================================================== --- head/bin/sh/expand.c Thu Jan 7 23:10:44 2016 (r293391) +++ head/bin/sh/expand.c Thu Jan 7 23:13:20 2016 (r293392) @@ -951,8 +951,8 @@ varvalue(const char *name, int quoted, i case '-': p = buf; for (i = 0 ; i < NSHORTOPTS ; i++) { - if (optlist[i].val) - *p++ = optlist[i].letter; + if (optval[i]) + *p++ = optletter[i]; } *p = '\0'; strtodest(buf, flag, subtype, quoted, dst); Modified: head/bin/sh/options.c ============================================================================== --- head/bin/sh/options.c Thu Jan 7 23:10:44 2016 (r293391) +++ head/bin/sh/options.c Thu Jan 7 23:13:20 2016 (r293392) @@ -91,7 +91,7 @@ procargs(int argc, char **argv) if (argc > 0) argptr++; for (i = 0; i < NOPTS; i++) - optlist[i].val = 2; + optval[i] = 2; privileged = (getuid() != geteuid() || getgid() != getegid()); options(1); if (*argptr == NULL && minusc == NULL) @@ -104,8 +104,8 @@ procargs(int argc, char **argv) if (mflag == 2) mflag = iflag; for (i = 0; i < NOPTS; i++) - if (optlist[i].val == 2) - optlist[i].val = 0; + if (optval[i] == 2) + optval[i] = 0; arg0 = argv[0]; if (sflag == 0 && minusc == NULL) { scriptname = *argptr++; @@ -250,26 +250,29 @@ static void minus_o(char *name, int val) { int i; + const unsigned char *on; + size_t len; if (name == NULL) { if (val) { /* "Pretty" output. */ out1str("Current option settings\n"); - for (i = 0; i < NOPTS; i++) - out1fmt("%-16s%s\n", optlist[i].name, - optlist[i].val ? "on" : "off"); + for (i = 0, on = optname; i < NOPTS; i++, on += *on + 1) + out1fmt("%-16.*s%s\n", *on, on + 1, + optval[i] ? "on" : "off"); } else { /* Output suitable for re-input to shell. */ - for (i = 0; i < NOPTS; i++) - out1fmt("%s %co %s%s", + for (i = 0, on = optname; i < NOPTS; i++, on += *on + 1) + out1fmt("%s %co %.*s%s", i % 6 == 0 ? "set" : "", - optlist[i].val ? '-' : '+', - optlist[i].name, + optval[i] ? '-' : '+', + *on, on + 1, i % 6 == 5 || i == NOPTS - 1 ? "\n" : ""); } } else { - for (i = 0; i < NOPTS; i++) - if (equal(name, optlist[i].name)) { + len = strlen(name); + for (i = 0, on = optname; i < NOPTS; i++, on += *on + 1) + if (*on == len && memcmp(on + 1, name, len) == 0) { setoptionbyindex(i, val); return; } @@ -281,18 +284,18 @@ minus_o(char *name, int val) static void setoptionbyindex(int idx, int val) { - if (optlist[idx].letter == 'p' && !val && privileged) { + if (optletter[idx] == 'p' && !val && privileged) { if (setgid(getgid()) == -1) error("setgid"); if (setuid(getuid()) == -1) error("setuid"); } - optlist[idx].val = val; + optval[idx] = val; if (val) { /* #%$ hack for ksh semantics */ - if (optlist[idx].letter == 'V') + if (optletter[idx] == 'V') Eflag = 0; - else if (optlist[idx].letter == 'E') + else if (optletter[idx] == 'E') Vflag = 0; } } @@ -303,7 +306,7 @@ setoption(int flag, int val) int i; for (i = 0; i < NSHORTOPTS; i++) - if (optlist[i].letter == flag) { + if (optletter[i] == flag) { setoptionbyindex(i, val); return; } Modified: head/bin/sh/options.h ============================================================================== --- head/bin/sh/options.h Thu Jan 7 23:10:44 2016 (r293391) +++ head/bin/sh/options.h Thu Jan 7 23:13:20 2016 (r293392) @@ -45,60 +45,57 @@ struct shparam { -#define eflag optlist[0].val -#define fflag optlist[1].val -#define Iflag optlist[2].val -#define iflag optlist[3].val -#define mflag optlist[4].val -#define nflag optlist[5].val -#define sflag optlist[6].val -#define xflag optlist[7].val -#define vflag optlist[8].val -#define Vflag optlist[9].val -#define Eflag optlist[10].val -#define Cflag optlist[11].val -#define aflag optlist[12].val -#define bflag optlist[13].val -#define uflag optlist[14].val -#define privileged optlist[15].val -#define Tflag optlist[16].val -#define Pflag optlist[17].val -#define hflag optlist[18].val -#define nologflag optlist[19].val +#define eflag optval[0] +#define fflag optval[1] +#define Iflag optval[2] +#define iflag optval[3] +#define mflag optval[4] +#define nflag optval[5] +#define sflag optval[6] +#define xflag optval[7] +#define vflag optval[8] +#define Vflag optval[9] +#define Eflag optval[10] +#define Cflag optval[11] +#define aflag optval[12] +#define bflag optval[13] +#define uflag optval[14] +#define privileged optval[15] +#define Tflag optval[16] +#define Pflag optval[17] +#define hflag optval[18] +#define nologflag optval[19] #define NSHORTOPTS 19 #define NOPTS 20 -struct optent { - const char *name; - const char letter; - char val; -}; - -extern struct optent optlist[NOPTS]; +extern char optval[NOPTS]; +extern const char optletter[NSHORTOPTS]; #ifdef DEFINE_OPTIONS -struct optent optlist[NOPTS] = { - { "errexit", 'e', 0 }, - { "noglob", 'f', 0 }, - { "ignoreeof", 'I', 0 }, - { "interactive",'i', 0 }, - { "monitor", 'm', 0 }, - { "noexec", 'n', 0 }, - { "stdin", 's', 0 }, - { "xtrace", 'x', 0 }, - { "verbose", 'v', 0 }, - { "vi", 'V', 0 }, - { "emacs", 'E', 0 }, - { "noclobber", 'C', 0 }, - { "allexport", 'a', 0 }, - { "notify", 'b', 0 }, - { "nounset", 'u', 0 }, - { "privileged", 'p', 0 }, - { "trapsasync", 'T', 0 }, - { "physical", 'P', 0 }, - { "trackall", 'h', 0 }, - { "nolog", '\0', 0 }, -}; +char optval[NOPTS]; +const char optletter[NSHORTOPTS] = "efIimnsxvVECabupTPh"; +static const unsigned char optname[] = + "\007errexit" + "\006noglob" + "\011ignoreeof" + "\013interactive" + "\007monitor" + "\006noexec" + "\005stdin" + "\006xtrace" + "\007verbose" + "\002vi" + "\005emacs" + "\011noclobber" + "\011allexport" + "\006notify" + "\007nounset" + "\012privileged" + "\012trapsasync" + "\010physical" + "\010trackall" + "\005nolog" +; #endif Modified: head/bin/sh/var.c ============================================================================== --- head/bin/sh/var.c Thu Jan 7 23:10:44 2016 (r293391) +++ head/bin/sh/var.c Thu Jan 7 23:13:20 2016 (r293392) @@ -754,8 +754,8 @@ mklocal(char *name) INTOFF; lvp = ckmalloc(sizeof (struct localvar)); if (name[0] == '-' && name[1] == '\0') { - lvp->text = ckmalloc(sizeof optlist); - memcpy(lvp->text, optlist, sizeof optlist); + lvp->text = ckmalloc(sizeof optval); + memcpy(lvp->text, optval, sizeof optval); vp = NULL; } else { vp = find_var(name, &vpp, NULL); @@ -797,7 +797,7 @@ poplocalvars(void) localvars = lvp->next; vp = lvp->vp; if (vp == NULL) { /* $- saved */ - memcpy(optlist, lvp->text, sizeof optlist); + memcpy(optval, lvp->text, sizeof optval); ckfree(lvp->text); optschanged(); } else if ((lvp->flags & (VUNSET|VSTRFIXED)) == VUNSET) {
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