/* $OpenBSD: options.c,v 1.22 2016/08/01 18:27:35 bentley Exp $ */ /*- * Copyright (c) 1991, 1993, 1994 * The Regents of the University of California. All rights reserved. * Copyright (c) 1991, 1993, 1994, 1995, 1996 * Keith Bostic. All rights reserved. * * See the LICENSE file for redistribution information. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include "common.h" #include "../vi/vi.h" #include "pathnames.h" static int opts_abbcmp(const void *, const void *); static int opts_cmp(const void *, const void *); static int opts_print(SCR *, OPTLIST const *); /* * O'Reilly noted options and abbreviations are from "Learning the VI Editor", * Fifth Edition, May 1992. There's no way of knowing what systems they are * actually from. * * HPUX noted options and abbreviations are from "The Ultimate Guide to the * VI and EX Text Editors", 1990. */ OPTLIST const optlist[] = { /* O_ALTWERASE 4.4BSD */ {"altwerase", f_altwerase, OPT_0BOOL, 0}, /* O_AUTOINDENT 4BSD */ {"autoindent", NULL, OPT_0BOOL, 0}, /* O_AUTOPRINT 4BSD */ {"autoprint", NULL, OPT_1BOOL, 0}, /* O_AUTOWRITE 4BSD */ {"autowrite", NULL, OPT_0BOOL, 0}, /* O_BACKUP 4.4BSD */ {"backup", NULL, OPT_STR, 0}, /* O_BEAUTIFY 4BSD */ {"beautify", NULL, OPT_0BOOL, 0}, /* O_CDPATH 4.4BSD */ {"cdpath", NULL, OPT_STR, 0}, /* O_CEDIT 4.4BSD */ {"cedit", NULL, OPT_STR, 0}, /* O_COLUMNS 4.4BSD */ {"columns", f_columns, OPT_NUM, OPT_NOSAVE}, /* O_COMMENT 4.4BSD */ {"comment", NULL, OPT_0BOOL, 0}, /* O_EDCOMPATIBLE 4BSD */ {"edcompatible",NULL, OPT_0BOOL, 0}, /* O_ESCAPETIME 4.4BSD */ {"escapetime", NULL, OPT_NUM, 0}, /* O_ERRORBELLS 4BSD */ {"errorbells", NULL, OPT_0BOOL, 0}, /* O_EXRC System V (undocumented) */ {"exrc", NULL, OPT_0BOOL, 0}, /* O_EXTENDED 4.4BSD */ {"extended", f_recompile, OPT_0BOOL, 0}, /* O_FILEC 4.4BSD */ {"filec", NULL, OPT_STR, 0}, /* O_FLASH HPUX */ {"flash", NULL, OPT_0BOOL, 0}, /* O_HARDTABS 4BSD */ {"hardtabs", NULL, OPT_NUM, 0}, /* O_ICLOWER 4.4BSD */ {"iclower", f_recompile, OPT_0BOOL, 0}, /* O_IGNORECASE 4BSD */ {"ignorecase", f_recompile, OPT_0BOOL, 0}, /* O_KEYTIME 4.4BSD */ {"keytime", NULL, OPT_NUM, 0}, /* O_LEFTRIGHT 4.4BSD */ {"leftright", f_reformat, OPT_0BOOL, 0}, /* O_LINES 4.4BSD */ {"lines", f_lines, OPT_NUM, OPT_NOSAVE}, /* O_LISP 4BSD * XXX * When the lisp option is implemented, delete the OPT_NOSAVE flag, * so that :mkexrc dumps it. */ {"lisp", f_lisp, OPT_0BOOL, OPT_NOSAVE}, /* O_LIST 4BSD */ {"list", f_reformat, OPT_0BOOL, 0}, /* O_LOCKFILES 4.4BSD * XXX * Locking isn't reliable enough over NFS to require it, in addition, * it's a serious startup performance problem over some remote links. */ {"lock", NULL, OPT_1BOOL, 0}, /* O_MAGIC 4BSD */ {"magic", NULL, OPT_1BOOL, 0}, /* O_MATCHTIME 4.4BSD */ {"matchtime", NULL, OPT_NUM, 0}, /* O_MESG 4BSD */ {"mesg", NULL, OPT_1BOOL, 0}, /* O_MODELINE 4BSD * !!! * This has been documented in historical systems as both "modeline" * and as "modelines". Regardless of the name, this option represents * a security problem of mammoth proportions, not to mention a stunning * example of what your intro CS professor referred to as the perils of * mixing code and data. Don't add it, or I will kill you. */ {"modeline", NULL, OPT_0BOOL, OPT_NOSET}, /* O_NOPRINT 4.4BSD */ {"noprint", f_print, OPT_STR, OPT_EARLYSET}, /* O_NUMBER 4BSD */ {"number", f_reformat, OPT_0BOOL, 0}, /* O_OCTAL 4.4BSD */ {"octal", f_print, OPT_0BOOL, OPT_EARLYSET}, /* O_OPEN 4BSD */ {"open", NULL, OPT_1BOOL, 0}, /* O_OPTIMIZE 4BSD */ {"optimize", NULL, OPT_1BOOL, 0}, /* O_PARAGRAPHS 4BSD */ {"paragraphs", f_paragraph, OPT_STR, 0}, /* O_PATH 4.4BSD */ {"path", NULL, OPT_STR, 0}, /* O_PRINT 4.4BSD */ {"print", f_print, OPT_STR, OPT_EARLYSET}, /* O_PROMPT 4BSD */ {"prompt", NULL, OPT_1BOOL, 0}, /* O_READONLY 4BSD (undocumented) */ {"readonly", f_readonly, OPT_0BOOL, OPT_ALWAYS}, /* O_RECDIR 4.4BSD */ {"recdir", NULL, OPT_STR, 0}, /* O_REDRAW 4BSD */ {"redraw", NULL, OPT_0BOOL, 0}, /* O_REMAP 4BSD */ {"remap", NULL, OPT_1BOOL, 0}, /* O_REPORT 4BSD */ {"report", NULL, OPT_NUM, 0}, /* O_RULER 4.4BSD */ {"ruler", NULL, OPT_0BOOL, 0}, /* O_SCROLL 4BSD */ {"scroll", NULL, OPT_NUM, 0}, /* O_SEARCHINCR 4.4BSD */ {"searchincr", NULL, OPT_0BOOL, 0}, /* O_SECTIONS 4BSD */ {"sections", f_section, OPT_STR, 0}, /* O_SECURE 4.4BSD */ {"secure", NULL, OPT_0BOOL, OPT_NOUNSET}, /* O_SHELL 4BSD */ {"shell", NULL, OPT_STR, 0}, /* O_SHELLMETA 4.4BSD */ {"shellmeta", NULL, OPT_STR, 0}, /* O_SHIFTWIDTH 4BSD */ {"shiftwidth", NULL, OPT_NUM, OPT_NOZERO}, /* O_SHOWMATCH 4BSD */ {"showmatch", NULL, OPT_0BOOL, 0}, /* O_SHOWMODE 4.4BSD */ {"showmode", NULL, OPT_0BOOL, 0}, /* O_SIDESCROLL 4.4BSD */ {"sidescroll", NULL, OPT_NUM, OPT_NOZERO}, /* O_SLOWOPEN 4BSD */ {"slowopen", NULL, OPT_0BOOL, 0}, /* O_SOURCEANY 4BSD (undocumented) * !!! * Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they * were owned by the user. The sourceany option was an undocumented * feature of historic vi which permitted the startup source'ing of * .exrc files the user didn't own. This is an obvious security problem, * and we ignore the option. */ {"sourceany", NULL, OPT_0BOOL, OPT_NOSET}, /* O_TABSTOP 4BSD */ {"tabstop", f_reformat, OPT_NUM, OPT_NOZERO}, /* O_TAGLENGTH 4BSD */ {"taglength", NULL, OPT_NUM, 0}, /* O_TAGS 4BSD */ {"tags", NULL, OPT_STR, 0}, /* O_TERM 4BSD * !!! * By default, the historic vi always displayed information about two * options, redraw and term. Term seems sufficient. */ {"term", NULL, OPT_STR, OPT_ADISP|OPT_NOSAVE}, /* O_TERSE 4BSD */ {"terse", NULL, OPT_0BOOL, 0}, /* O_TILDEOP 4.4BSD */ {"tildeop", NULL, OPT_0BOOL, 0}, /* O_TIMEOUT 4BSD (undocumented) */ {"timeout", NULL, OPT_1BOOL, 0}, /* O_TTYWERASE 4.4BSD */ {"ttywerase", f_ttywerase, OPT_0BOOL, 0}, /* O_VERBOSE 4.4BSD */ {"verbose", NULL, OPT_0BOOL, 0}, /* O_W1200 4BSD */ {"w1200", f_w1200, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, /* O_W300 4BSD */ {"w300", f_w300, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, /* O_W9600 4BSD */ {"w9600", f_w9600, OPT_NUM, OPT_NDISP|OPT_NOSAVE}, /* O_WARN 4BSD */ {"warn", NULL, OPT_1BOOL, 0}, /* O_WINDOW 4BSD */ {"window", f_window, OPT_NUM, 0}, /* O_WINDOWNAME 4BSD */ {"windowname", NULL, OPT_0BOOL, 0}, /* O_WRAPLEN 4.4BSD */ {"wraplen", NULL, OPT_NUM, 0}, /* O_WRAPMARGIN 4BSD */ {"wrapmargin", NULL, OPT_NUM, 0}, /* O_WRAPSCAN 4BSD */ {"wrapscan", NULL, OPT_1BOOL, 0}, /* O_WRITEANY 4BSD */ {"writeany", NULL, OPT_0BOOL, 0}, {NULL}, }; typedef struct abbrev { char *name; int offset; } OABBREV; static OABBREV const abbrev[] = { {"ai", O_AUTOINDENT}, /* 4BSD */ {"ap", O_AUTOPRINT}, /* 4BSD */ {"aw", O_AUTOWRITE}, /* 4BSD */ {"bf", O_BEAUTIFY}, /* 4BSD */ {"co", O_COLUMNS}, /* 4.4BSD */ {"eb", O_ERRORBELLS}, /* 4BSD */ {"ed", O_EDCOMPATIBLE}, /* 4BSD */ {"ex", O_EXRC}, /* System V (undocumented) */ {"ht", O_HARDTABS}, /* 4BSD */ {"ic", O_IGNORECASE}, /* 4BSD */ {"li", O_LINES}, /* 4.4BSD */ {"modelines", O_MODELINE}, /* HPUX */ {"nu", O_NUMBER}, /* 4BSD */ {"opt", O_OPTIMIZE}, /* 4BSD */ {"para", O_PARAGRAPHS}, /* 4BSD */ {"re", O_REDRAW}, /* O'Reilly */ {"ro", O_READONLY}, /* 4BSD (undocumented) */ {"scr", O_SCROLL}, /* 4BSD (undocumented) */ {"sect", O_SECTIONS}, /* O'Reilly */ {"sh", O_SHELL}, /* 4BSD */ {"slow", O_SLOWOPEN}, /* 4BSD */ {"sm", O_SHOWMATCH}, /* 4BSD */ {"smd", O_SHOWMODE}, /* 4BSD */ {"sw", O_SHIFTWIDTH}, /* 4BSD */ {"tag", O_TAGS}, /* 4BSD (undocumented) */ {"tl", O_TAGLENGTH}, /* 4BSD */ {"to", O_TIMEOUT}, /* 4BSD (undocumented) */ {"ts", O_TABSTOP}, /* 4BSD */ {"tty", O_TERM}, /* 4BSD (undocumented) */ {"ttytype", O_TERM}, /* 4BSD (undocumented) */ {"w", O_WINDOW}, /* O'Reilly */ {"wa", O_WRITEANY}, /* 4BSD */ {"wi", O_WINDOW}, /* 4BSD (undocumented) */ {"wl", O_WRAPLEN}, /* 4.4BSD */ {"wm", O_WRAPMARGIN}, /* 4BSD */ {"ws", O_WRAPSCAN}, /* 4BSD */ {NULL}, }; /* * opts_init -- * Initialize some of the options. * * PUBLIC: int opts_init(SCR *, int *); */ int opts_init(SCR *sp, int *oargs) { ARGS *argv[2], a, b; OPTLIST const *op; u_long v; int optindx; char *s, b1[1024]; a.bp = b1; b.bp = NULL; a.len = b.len = 0; argv[0] = &a; argv[1] = &b; /* Set numeric and string default values. */ #define OI(indx, str) { \ if ((str) != b1) /* GCC puts strings in text-space. */ \ (void)strlcpy(b1, (str), sizeof(b1)); \ a.len = strlen(b1); \ if (opts_set(sp, argv, NULL)) { \ optindx = indx; \ goto err; \ } \ } /* * Indirect global options to global space. Specifically, set up * terminal, lines, columns first, they're used by other options. * Note, don't set the flags until we've set up the indirection. */ if (o_set(sp, O_TERM, 0, NULL, GO_TERM)) { optindx = O_TERM; goto err; } F_SET(&sp->opts[O_TERM], OPT_GLOBAL); if (o_set(sp, O_LINES, 0, NULL, GO_LINES)) { optindx = O_LINES; goto err; } F_SET(&sp->opts[O_LINES], OPT_GLOBAL); if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS)) { optindx = O_COLUMNS; goto err; } F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL); if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE)) { optindx = O_SECURE; goto err; } F_SET(&sp->opts[O_SECURE], OPT_GLOBAL); /* Initialize string values. */ (void)snprintf(b1, sizeof(b1), "cdpath=%s", (s = getenv("CDPATH")) == NULL ? ":" : s); OI(O_CDPATH, b1); OI(O_ESCAPETIME, "escapetime=1"); OI(O_FILEC, "filec=\t"); OI(O_KEYTIME, "keytime=6"); OI(O_MATCHTIME, "matchtime=7"); OI(O_REPORT, "report=5"); OI(O_PARAGRAPHS, "paragraphs=IPLPPPQPP LIpplpipbp"); (void)snprintf(b1, sizeof(b1), "path=%s", ""); OI(O_PATH, b1); (void)snprintf(b1, sizeof(b1), "recdir=%s", _PATH_PRESERVE); OI(O_RECDIR, b1); OI(O_SECTIONS, "sections=NHSHH HUnhsh"); (void)snprintf(b1, sizeof(b1), "shell=%s", (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s); OI(O_SHELL, b1); OI(O_SHELLMETA, "shellmeta=~{[*?$`'\"\\"); OI(O_SHIFTWIDTH, "shiftwidth=8"); OI(O_SIDESCROLL, "sidescroll=16"); OI(O_TABSTOP, "tabstop=8"); (void)snprintf(b1, sizeof(b1), "tags=%s", _PATH_TAGS); OI(O_TAGS, b1); /* * XXX * Initialize O_SCROLL here, after term; initializing term should * have created a LINES/COLUMNS value. */ if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0) v = 1; (void)snprintf(b1, sizeof(b1), "scroll=%ld", v); OI(O_SCROLL, b1); /* * The default window option values are: * 8 if baud rate <= 600 * 16 if baud rate <= 1200 * LINES - 1 if baud rate > 1200 * * Note, the windows option code will correct any too-large value * or when the O_LINES value is 1. */ if (sp->gp->scr_baud(sp, &v)) return (1); if (v <= 600) v = 8; else if (v <= 1200) v = 16; else v = O_VAL(sp, O_LINES) - 1; (void)snprintf(b1, sizeof(b1), "window=%lu", v); OI(O_WINDOW, b1); /* * Set boolean default values, and copy all settings into the default * information. OS_NOFREE is set, we're copying, not replacing. */ for (op = optlist, optindx = 0; op->name != NULL; ++op, ++optindx) switch (op->type) { case OPT_0BOOL: break; case OPT_1BOOL: O_SET(sp, optindx); O_D_SET(sp, optindx); break; case OPT_NUM: o_set(sp, optindx, OS_DEF, NULL, O_VAL(sp, optindx)); break; case OPT_STR: if (O_STR(sp, optindx) != NULL && o_set(sp, optindx, OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, optindx), 0)) goto err; break; default: abort(); } /* * !!! * Some options can be initialized by the command name or the * command-line arguments. They don't set the default values, * it's historic practice. */ for (; *oargs != -1; ++oargs) OI(*oargs, optlist[*oargs].name); return (0); #undef OI err: msgq(sp, M_ERR, "Unable to set default %s option", optlist[optindx].name); return (1); } /* * opts_set -- * Change the values of one or more options. * * PUBLIC: int opts_set(SCR *, ARGS *[], char *); */ int opts_set(SCR *sp, ARGS *argv[], char *usage) { enum optdisp disp; enum nresult nret; OPTLIST const *op; OPTION *spo; u_long value, turnoff; int ch, equals, nf, nf2, offset, qmark, rval; char *endp, *name, *p, *sep, *t; disp = NO_DISPLAY; for (rval = 0; argv[0]->len != 0; ++argv) { /* * The historic vi dumped the options for each occurrence of * "all" in the set list. Puhleeze. */ if (!strcmp(argv[0]->bp, "all")) { disp = ALL_DISPLAY; continue; } /* Find equals sign or question mark. */ for (sep = NULL, equals = qmark = 0, p = name = argv[0]->bp; (ch = *p) != '\0'; ++p) if (ch == '=' || ch == '?') { if (p == name) { if (usage != NULL) msgq(sp, M_ERR, "Usage: %s", usage); return (1); } sep = p; if (ch == '=') equals = 1; else qmark = 1; break; } turnoff = 0; op = NULL; if (sep != NULL) *sep++ = '\0'; /* Search for the name, then name without any leading "no". */ if ((op = opts_search(name)) == NULL && name[0] == 'n' && name[1] == 'o') { turnoff = 1; name += 2; op = opts_search(name); } if (op == NULL) { opts_nomatch(sp, name); rval = 1; continue; } /* Find current option values. */ offset = op - optlist; spo = sp->opts + offset; /* * !!! * Historically, the question mark could be a separate * argument. */ if (!equals && !qmark && argv[1]->len == 1 && argv[1]->bp[0] == '?') { ++argv; qmark = 1; } /* Set name, value. */ switch (op->type) { case OPT_0BOOL: case OPT_1BOOL: /* Some options may not be reset. */ if (F_ISSET(op, OPT_NOUNSET) && turnoff) { msgq_str(sp, M_ERR, name, "set: the %s option may not be turned off"); rval = 1; break; } /* Some options may not be set. */ if (F_ISSET(op, OPT_NOSET) && !turnoff) { msgq_str(sp, M_ERR, name, "set: the %s option may never be turned on"); rval = 1; break; } if (equals) { msgq_str(sp, M_ERR, name, "set: [no]%s option doesn't take a value"); rval = 1; break; } if (qmark) { if (!disp) disp = SELECT_DISPLAY; F_SET(spo, OPT_SELECTED); break; } /* * Do nothing if the value is unchanged, the underlying * functions can be expensive. */ if (!F_ISSET(op, OPT_ALWAYS)) { if (turnoff) { if (!O_ISSET(sp, offset)) break; } else { if (O_ISSET(sp, offset)) break; } } if (F_ISSET(op, OPT_EARLYSET)) { /* Set the value. */ if (turnoff) O_CLR(sp, offset); else O_SET(sp, offset); } /* Report to subsystems. */ if ((op->func != NULL && op->func(sp, spo, NULL, &turnoff)) || ex_optchange(sp, offset, NULL, &turnoff) || v_optchange(sp, offset, NULL, &turnoff) || sp->gp->scr_optchange(sp, offset, NULL, &turnoff)) { rval = 1; break; } if (!F_ISSET(op, OPT_EARLYSET)) { /* Set the value. */ if (turnoff) O_CLR(sp, offset); else O_SET(sp, offset); } break; case OPT_NUM: if (turnoff) { msgq_str(sp, M_ERR, name, "set: %s option isn't a boolean"); rval = 1; break; } if (qmark || !equals) { if (!disp) disp = SELECT_DISPLAY; F_SET(spo, OPT_SELECTED); break; } if (!isdigit(sep[0])) goto badnum; if ((nret = nget_uslong(&value, sep, &endp, 10)) != NUM_OK) { p = msg_print(sp, name, &nf); t = msg_print(sp, sep, &nf2); switch (nret) { case NUM_ERR: msgq(sp, M_SYSERR, "set: %s option: %s", p, t); break; case NUM_OVER: msgq(sp, M_ERR, "set: %s option: %s: value overflow", p, t); break; case NUM_OK: case NUM_UNDER: abort(); } if (nf) FREE_SPACE(sp, p, 0); if (nf2) FREE_SPACE(sp, t, 0); rval = 1; break; } if (*endp && !isblank(*endp)) { badnum: p = msg_print(sp, name, &nf); t = msg_print(sp, sep, &nf2); msgq(sp, M_ERR, "set: %s option: %s is an illegal number", p, t); if (nf) FREE_SPACE(sp, p, 0); if (nf2) FREE_SPACE(sp, t, 0); rval = 1; break; } /* Some options may never be set to zero. */ if (F_ISSET(op, OPT_NOZERO) && value == 0) { msgq_str(sp, M_ERR, name, "set: the %s option may never be set to 0"); rval = 1; break; } /* * Do nothing if the value is unchanged, the underlying * functions can be expensive. */ if (!F_ISSET(op, OPT_ALWAYS) && O_VAL(sp, offset) == value) break; if (F_ISSET(op, OPT_EARLYSET)) { /* Set the value. */ if (o_set(sp, offset, 0, NULL, value)) { rval = 1; break; } } /* Report to subsystems. */ if ((op->func != NULL && op->func(sp, spo, sep, &value)) || ex_optchange(sp, offset, sep, &value) || v_optchange(sp, offset, sep, &value) || sp->gp->scr_optchange(sp, offset, sep, &value)) { rval = 1; break; } if (!F_ISSET(op, OPT_EARLYSET)) { /* Set the value. */ if (o_set(sp, offset, 0, NULL, value)) rval = 1; } break; case OPT_STR: if (turnoff) { msgq_str(sp, M_ERR, name, "set: %s option isn't a boolean"); rval = 1; break; } if (qmark || !equals) { if (!disp) disp = SELECT_DISPLAY; F_SET(spo, OPT_SELECTED); break; } /* * Do nothing if the value is unchanged, the underlying * functions can be expensive. */ if (!F_ISSET(op, OPT_ALWAYS) && O_STR(sp, offset) != NULL && !strcmp(O_STR(sp, offset), sep)) break; if (F_ISSET(op, OPT_EARLYSET)) { /* Set the value. */ if (o_set(sp, offset, OS_STRDUP, sep, 0)) { rval = 1; break; } } /* Report to subsystems. */ if ((op->func != NULL && op->func(sp, spo, sep, NULL)) || ex_optchange(sp, offset, sep, NULL) || v_optchange(sp, offset, sep, NULL) || sp->gp->scr_optchange(sp, offset, sep, NULL)) { rval = 1; break; } if (!F_ISSET(op, OPT_EARLYSET)) { /* Set the value. */ if (o_set(sp, offset, OS_STRDUP, sep, 0)) rval = 1; } break; default: abort(); } } if (disp != NO_DISPLAY) opts_dump(sp, disp); return (rval); } /* * o_set -- * Set an option's value. * * PUBLIC: int o_set(SCR *, int, u_int, char *, u_long); */ int o_set(SCR *sp, int opt, u_int flags, char *str, u_long val) { OPTION *op; /* Set a pointer to the options area. */ op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ? &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt]; /* Copy the string, if requested. */ if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) { msgq(sp, M_SYSERR, NULL); return (1); } /* Free the previous string, if requested, and set the value. */ if (LF_ISSET(OS_DEF)) if (LF_ISSET(OS_STR | OS_STRDUP)) { if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL) free(op->o_def.str); op->o_def.str = str; } else op->o_def.val = val; else if (LF_ISSET(OS_STR | OS_STRDUP)) { if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL) free(op->o_cur.str); op->o_cur.str = str; } else op->o_cur.val = val; return (0); } /* * opts_empty -- * Return 1 if the string option is invalid, 0 if it's OK. * * PUBLIC: int opts_empty(SCR *, int, int); */ int opts_empty(SCR *sp, int off, int silent) { char *p; if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') { if (!silent) msgq_str(sp, M_ERR, optlist[off].name, "No %s edit option specified"); return (1); } return (0); } /* * opts_dump -- * List the current values of selected options. * * PUBLIC: void opts_dump(SCR *, enum optdisp); */ void opts_dump(SCR *sp, enum optdisp type) { OPTLIST const *op; int base, b_num, cnt, col, colwidth, curlen, s_num; int numcols, numrows, row; int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT]; char nbuf[20]; /* * Options are output in two groups -- those that fit in a column and * those that don't. Output is done on 6 character "tab" boundaries * for no particular reason. (Since we don't output tab characters, * we can ignore the terminal's tab settings.) Ignore the user's tab * setting because we have no idea how reasonable it is. * * Find a column width we can live with, testing from 10 columns to 1. */ for (numcols = 10; numcols > 1; --numcols) { colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1); if (colwidth >= 10) { colwidth = (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1); numcols = sp->cols / colwidth; break; } colwidth = 0; } /* * Get the set of options to list, entering them into * the column list or the overflow list. */ for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) { cnt = op - optlist; /* If OPT_NDISP set, it's never displayed. */ if (F_ISSET(op, OPT_NDISP)) continue; switch (type) { case ALL_DISPLAY: /* Display all. */ break; case CHANGED_DISPLAY: /* Display changed. */ /* If OPT_ADISP set, it's always "changed". */ if (F_ISSET(op, OPT_ADISP)) break; switch (op->type) { case OPT_0BOOL: case OPT_1BOOL: case OPT_NUM: if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt)) continue; break; case OPT_STR: if (O_STR(sp, cnt) == O_D_STR(sp, cnt) || (O_D_STR(sp, cnt) != NULL && !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt)))) continue; break; } break; case SELECT_DISPLAY: /* Display selected. */ if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED)) continue; break; default: case NO_DISPLAY: abort(); } F_CLR(&sp->opts[cnt], OPT_SELECTED); curlen = strlen(op->name); switch (op->type) { case OPT_0BOOL: case OPT_1BOOL: if (!O_ISSET(sp, cnt)) curlen += 2; break; case OPT_NUM: (void)snprintf(nbuf, sizeof(nbuf), "%ld", O_VAL(sp, cnt)); curlen += strlen(nbuf); break; case OPT_STR: if (O_STR(sp, cnt) != NULL) curlen += strlen(O_STR(sp, cnt)); curlen += 3; break; } /* Offset by 2 so there's a gap. */ if (curlen <= colwidth - 2) s_op[s_num++] = cnt; else b_op[b_num++] = cnt; } if (s_num > 0) { /* Figure out the number of rows. */ if (s_num > numcols) { numrows = s_num / numcols; if (s_num % numcols) ++numrows; } else numrows = 1; /* Display the options in sorted order. */ for (row = 0; row < numrows;) { for (base = row, col = 0; col < numcols; ++col) { cnt = opts_print(sp, &optlist[s_op[base]]); if ((base += numrows) >= s_num) break; (void)ex_printf(sp, "%*s", (int)(colwidth - cnt), ""); } if (++row < numrows || b_num) (void)ex_puts(sp, "\n"); } } for (row = 0; row < b_num;) { (void)opts_print(sp, &optlist[b_op[row]]); if (++row < b_num) (void)ex_puts(sp, "\n"); } (void)ex_puts(sp, "\n"); } /* * opts_print -- * Print out an option. */ static int opts_print(SCR *sp, OPTLIST const *op) { int curlen, offset; curlen = 0; offset = op - optlist; switch (op->type) { case OPT_0BOOL: case OPT_1BOOL: curlen += ex_printf(sp, "%s%s", O_ISSET(sp, offset) ? "" : "no", op->name); break; case OPT_NUM: curlen += ex_printf(sp, "%s=%ld", op->name, O_VAL(sp, offset)); break; case OPT_STR: curlen += ex_printf(sp, "%s=\"%s\"", op->name, O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset)); break; } return (curlen); } /* * opts_save -- * Write the current configuration to a file. * * PUBLIC: int opts_save(SCR *, FILE *); */ int opts_save(SCR *sp, FILE *fp) { OPTLIST const *op; int ch, cnt; char *p; for (op = optlist; op->name != NULL; ++op) { if (F_ISSET(op, OPT_NOSAVE)) continue; cnt = op - optlist; switch (op->type) { case OPT_0BOOL: case OPT_1BOOL: if (O_ISSET(sp, cnt)) (void)fprintf(fp, "set %s\n", op->name); else (void)fprintf(fp, "set no%s\n", op->name); break; case OPT_NUM: (void)fprintf(fp, "set %s=%-3ld\n", op->name, O_VAL(sp, cnt)); break; case OPT_STR: if (O_STR(sp, cnt) == NULL) break; (void)fprintf(fp, "set "); for (p = op->name; (ch = *p) != '\0'; ++p) { if (isblank(ch) || ch == '\\') (void)putc('\\', fp); (void)putc(ch, fp); } (void)putc('=', fp); for (p = O_STR(sp, cnt); (ch = *p) != '\0'; ++p) { if (isblank(ch) || ch == '\\') (void)putc('\\', fp); (void)putc(ch, fp); } (void)putc('\n', fp); break; } if (ferror(fp)) { msgq(sp, M_SYSERR, NULL); return (1); } } return (0); } /* * opts_search -- * Search for an option. * * PUBLIC: OPTLIST const *opts_search(char *); */ OPTLIST const * opts_search(char *name) { OPTLIST const *op, *found; OABBREV atmp, *ap; OPTLIST otmp; size_t len; /* Check list of abbreviations. */ atmp.name = name; if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1, sizeof(OABBREV), opts_abbcmp)) != NULL) return (optlist + ap->offset); /* Check list of options. */ otmp.name = name; if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1, sizeof(OPTLIST), opts_cmp)) != NULL) return (op); /* * Check to see if the name is the prefix of one (and only one) * option. If so, return the option. */ len = strlen(name); for (found = NULL, op = optlist; op->name != NULL; ++op) { if (op->name[0] < name[0]) continue; if (op->name[0] > name[0]) break; if (!memcmp(op->name, name, len)) { if (found != NULL) return (NULL); found = op; } } return (found); } /* * opts_nomatch -- * Standard nomatch error message for options. * * PUBLIC: void opts_nomatch(SCR *, char *); */ void opts_nomatch(SCR *sp, char *name) { msgq_str(sp, M_ERR, name, "set: no %s option: 'set all' gives all option values"); } static int opts_abbcmp(const void *a, const void *b) { return(strcmp(((OABBREV *)a)->name, ((OABBREV *)b)->name)); } static int opts_cmp(const void *a, const void *b) { return(strcmp(((OPTLIST *)a)->name, ((OPTLIST *)b)->name)); } /* * opts_copy -- * Copy a screen's OPTION array. * * PUBLIC: int opts_copy(SCR *, SCR *); */ int opts_copy(SCR *orig, SCR *sp) { int cnt, rval; /* Copy most everything without change. */ memcpy(sp->opts, orig->opts, sizeof(orig->opts)); /* Copy the string edit options. */ for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) { if (optlist[cnt].type != OPT_STR || F_ISSET(&optlist[cnt], OPT_GLOBAL)) continue; /* * If never set, or already failed, NULL out the entries -- * have to continue after failure, otherwise would have two * screens referencing the same memory. */ if (rval || O_STR(sp, cnt) == NULL) { o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0); o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); continue; } /* Copy the current string. */ if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) { o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0); goto nomem; } /* Copy the default string. */ if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) { nomem: msgq(orig, M_SYSERR, NULL); rval = 1; } } return (rval); } /* * opts_free -- * Free all option strings * * PUBLIC: void opts_free(SCR *); */ void opts_free(SCR *sp) { int cnt; for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) { if (optlist[cnt].type != OPT_STR || F_ISSET(&optlist[cnt], OPT_GLOBAL)) continue; if (O_STR(sp, cnt) != NULL) free(O_STR(sp, cnt)); if (O_D_STR(sp, cnt) != NULL) free(O_D_STR(sp, cnt)); } }