diff options
Diffstat (limited to 'contrib/ncurses/ncurses/tinfo/write_entry.c')
| -rw-r--r-- | contrib/ncurses/ncurses/tinfo/write_entry.c | 773 |
1 files changed, 0 insertions, 773 deletions
diff --git a/contrib/ncurses/ncurses/tinfo/write_entry.c b/contrib/ncurses/ncurses/tinfo/write_entry.c deleted file mode 100644 index 05027e0..0000000 --- a/contrib/ncurses/ncurses/tinfo/write_entry.c +++ /dev/null @@ -1,773 +0,0 @@ -/**************************************************************************** - * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. * - * * - * Permission is hereby granted, free of charge, to any person obtaining a * - * copy of this software and associated documentation files (the * - * "Software"), to deal in the Software without restriction, including * - * without limitation the rights to use, copy, modify, merge, publish, * - * distribute, distribute with modifications, sublicense, and/or sell * - * copies of the Software, and to permit persons to whom the Software is * - * furnished to do so, subject to the following conditions: * - * * - * The above copyright notice and this permission notice shall be included * - * in all copies or substantial portions of the Software. * - * * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * - * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * - * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * - * * - * Except as contained in this notice, the name(s) of the above copyright * - * holders shall not be used in advertising or otherwise to promote the * - * sale, use or other dealings in this Software without prior written * - * authorization. * - ****************************************************************************/ - -/**************************************************************************** - * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * - * and: Eric S. Raymond <esr@snark.thyrsus.com> * - * and: Thomas E. Dickey 1996-on * - ****************************************************************************/ - -/* - * write_entry.c -- write a terminfo structure onto the file system - */ - -#include <curses.priv.h> -#include <hashed_db.h> - -#include <sys/stat.h> - -#include <tic.h> -#include <term_entry.h> - -#ifndef S_ISDIR -#define S_ISDIR(mode) ((mode & S_IFMT) == S_IFDIR) -#endif - -#if 1 -#define TRACE_OUT(p) DEBUG(2, p) -#else -#define TRACE_OUT(p) /*nothing */ -#endif - -MODULE_ID("$Id: write_entry.c,v 1.70 2007/11/17 23:38:28 tom Exp $") - -static int total_written; - -static int make_db_root(const char *); -static int write_object(TERMTYPE *, char *, unsigned *, unsigned); - -#if !USE_HASHED_DB -static void -write_file(char *filename, TERMTYPE *tp) -{ - char buffer[MAX_ENTRY_SIZE]; - unsigned limit = sizeof(buffer); - unsigned offset = 0; - - FILE *fp = (_nc_access(filename, W_OK) == 0) ? fopen(filename, "wb") : 0; - if (fp == 0) { - perror(filename); - _nc_syserr_abort("can't open %s/%s", _nc_tic_dir(0), filename); - } - DEBUG(1, ("Created %s", filename)); - - if (write_object(tp, buffer, &offset, limit) == ERR - || fwrite(buffer, sizeof(char), offset, fp) != offset) { - _nc_syserr_abort("error writing %s/%s", _nc_tic_dir(0), filename); - } - - fclose(fp); -} - -/* - * Check for access rights to destination directories - * Create any directories which don't exist. - * - * Note: there's no reason to return the result of make_db_root(), since - * this function is called only in instances where that has to succeed. - */ -static void -check_writeable(int code) -{ - static const char dirnames[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; - static bool verified[sizeof(dirnames)]; - - char dir[sizeof(LEAF_FMT)]; - char *s = 0; - - if (code == 0 || (s = strchr(dirnames, code)) == 0) - _nc_err_abort("Illegal terminfo subdirectory \"" LEAF_FMT "\"", code); - - if (verified[s - dirnames]) - return; - - sprintf(dir, LEAF_FMT, code); - if (make_db_root(dir) < 0) { - _nc_err_abort("%s/%s: permission denied", _nc_tic_dir(0), dir); - } - - verified[s - dirnames] = TRUE; -} -#endif /* !USE_HASHED_DB */ - -static int -make_db_path(char *dst, const char *src, unsigned limit) -{ - int rc = -1; - const char *top = _nc_tic_dir(0); - - if (src == top || _nc_is_abs_path(src)) { - if (strlen(src) + 1 <= limit) { - (void) strcpy(dst, src); - rc = 0; - } - } else { - if (strlen(top) + strlen(src) + 2 <= limit) { - (void) sprintf(dst, "%s/%s", top, src); - rc = 0; - } - } -#if USE_HASHED_DB - if (rc == 0) { - if (_nc_is_dir_path(dst)) { - rc = -1; - } else { - unsigned have = strlen(dst); - if (have > 3 && strcmp(dst + have - 3, DBM_SUFFIX)) { - if (have + 3 <= limit) - strcat(dst, DBM_SUFFIX); - else - rc = -1; - } - } - } -#endif - return rc; -} - -/* - * Make a database-root if it doesn't exist. - */ -static int -make_db_root(const char *path) -{ - int rc; - char fullpath[PATH_MAX]; - - if ((rc = make_db_path(fullpath, path, sizeof(fullpath))) == 0) { -#if USE_HASHED_DB - DB *capdbp; - - if ((capdbp = _nc_db_open(fullpath, TRUE)) == NULL) - rc = -1; - else if (_nc_db_close(capdbp) < 0) - rc = -1; -#else - struct stat statbuf; - - if ((rc = stat(path, &statbuf)) < 0) { - rc = mkdir(path, 0777); - } else if (_nc_access(path, R_OK | W_OK | X_OK) < 0) { - rc = -1; /* permission denied */ - } else if (!(S_ISDIR(statbuf.st_mode))) { - rc = -1; /* not a directory */ - } -#endif - } - return rc; -} - -/* - * Set the write directory for compiled entries. - */ -NCURSES_EXPORT(void) -_nc_set_writedir(char *dir) -{ - const char *destination; - char actual[PATH_MAX]; - - if (dir == 0 - && use_terminfo_vars()) - dir = getenv("TERMINFO"); - - if (dir != 0) - (void) _nc_tic_dir(dir); - - destination = _nc_tic_dir(0); - if (make_db_root(destination) < 0) { - char *home = _nc_home_terminfo(); - - if (home != 0) { - destination = home; - if (make_db_root(destination) < 0) - _nc_err_abort("%s: permission denied (errno %d)", - destination, errno); - } - } - - /* - * Note: because of this code, this logic should be exercised - * *once only* per run. - */ -#if USE_HASHED_DB - make_db_path(actual, destination, sizeof(actual)); -#else - if (chdir(_nc_tic_dir(destination)) < 0 - || getcwd(actual, sizeof(actual)) == 0) - _nc_err_abort("%s: not a directory", destination); -#endif - _nc_keep_tic_dir(strdup(actual)); -} - -/* - * Save the compiled version of a description in the filesystem. - * - * make a copy of the name-list - * break it up into first-name and all-but-last-name - * creat(first-name) - * write object information to first-name - * close(first-name) - * for each name in all-but-last-name - * link to first-name - * - * Using 'time()' to obtain a reference for file timestamps is unreliable, - * e.g., with NFS, because the filesystem may have a different time - * reference. We check for pre-existence of links by latching the first - * timestamp from a file that we create. - * - * The _nc_warning() calls will report a correct line number only if - * _nc_curr_line is properly set before the write_entry() call. - */ - -NCURSES_EXPORT(void) -_nc_write_entry(TERMTYPE *const tp) -{ -#if USE_HASHED_DB - - char buffer[MAX_ENTRY_SIZE + 1]; - unsigned limit = sizeof(buffer); - unsigned offset = 0; - -#else /* !USE_HASHED_DB */ - - struct stat statbuf; - char filename[PATH_MAX]; - char linkname[PATH_MAX]; -#if USE_SYMLINKS - char symlinkname[PATH_MAX]; -#if !HAVE_LINK -#undef HAVE_LINK -#define HAVE_LINK 1 -#endif -#endif /* USE_SYMLINKS */ - - static int call_count; - static time_t start_time; /* time at start of writes */ - -#endif /* USE_HASHED_DB */ - - char name_list[MAX_TERMINFO_LENGTH]; - char *first_name, *other_names; - char *ptr; - - (void) strcpy(name_list, tp->term_names); - DEBUG(7, ("Name list = '%s'", name_list)); - - first_name = name_list; - - ptr = &name_list[strlen(name_list) - 1]; - other_names = ptr + 1; - - while (ptr > name_list && *ptr != '|') - ptr--; - - if (ptr != name_list) { - *ptr = '\0'; - - for (ptr = name_list; *ptr != '\0' && *ptr != '|'; ptr++) - continue; - - if (*ptr == '\0') - other_names = ptr; - else { - *ptr = '\0'; - other_names = ptr + 1; - } - } - - DEBUG(7, ("First name = '%s'", first_name)); - DEBUG(7, ("Other names = '%s'", other_names)); - - _nc_set_type(first_name); - -#if USE_HASHED_DB - if (write_object(tp, buffer + 1, &offset, limit - 1) != ERR) { - DB *capdb = _nc_db_open(_nc_tic_dir(0), TRUE); - DBT key, data; - - if (capdb != 0) { - buffer[0] = 0; - - memset(&key, 0, sizeof(key)); - key.data = tp->term_names; - key.size = strlen(tp->term_names); - - memset(&data, 0, sizeof(data)); - data.data = buffer; - data.size = offset + 1; - - _nc_db_put(capdb, &key, &data); - - buffer[0] = 2; - - key.data = name_list; - key.size = strlen(name_list); - - strcpy(buffer + 1, tp->term_names); - data.size = strlen(tp->term_names) + 1; - - _nc_db_put(capdb, &key, &data); - - while (*other_names != '\0') { - ptr = other_names++; - while (*other_names != '|' && *other_names != '\0') - other_names++; - - if (*other_names != '\0') - *(other_names++) = '\0'; - - key.data = ptr; - key.size = strlen(ptr); - - _nc_db_put(capdb, &key, &data); - } - _nc_db_close(capdb); - } - } -#else /* !USE_HASHED_DB */ - if (call_count++ == 0) { - start_time = 0; - } - - if (strlen(first_name) > sizeof(filename) - 3) - _nc_warning("terminal name too long."); - - sprintf(filename, LEAF_FMT "/%s", first_name[0], first_name); - - /* - * Has this primary name been written since the first call to - * write_entry()? If so, the newer write will step on the older, - * so warn the user. - */ - if (start_time > 0 && - stat(filename, &statbuf) >= 0 - && statbuf.st_mtime >= start_time) { - _nc_warning("name multiply defined."); - } - - check_writeable(first_name[0]); - write_file(filename, tp); - - if (start_time == 0) { - if (stat(filename, &statbuf) < 0 - || (start_time = statbuf.st_mtime) == 0) { - _nc_syserr_abort("error obtaining time from %s/%s", - _nc_tic_dir(0), filename); - } - } - while (*other_names != '\0') { - ptr = other_names++; - while (*other_names != '|' && *other_names != '\0') - other_names++; - - if (*other_names != '\0') - *(other_names++) = '\0'; - - if (strlen(ptr) > sizeof(linkname) - 3) { - _nc_warning("terminal alias %s too long.", ptr); - continue; - } - if (strchr(ptr, '/') != 0) { - _nc_warning("cannot link alias %s.", ptr); - continue; - } - - check_writeable(ptr[0]); - sprintf(linkname, LEAF_FMT "/%s", ptr[0], ptr); - - if (strcmp(filename, linkname) == 0) { - _nc_warning("self-synonym ignored"); - } else if (stat(linkname, &statbuf) >= 0 && - statbuf.st_mtime < start_time) { - _nc_warning("alias %s multiply defined.", ptr); - } else if (_nc_access(linkname, W_OK) == 0) -#if HAVE_LINK - { - int code; -#if USE_SYMLINKS - strcpy(symlinkname, "../"); - strncat(symlinkname, filename, sizeof(symlinkname) - 4); - symlinkname[sizeof(symlinkname) - 1] = '\0'; -#endif /* USE_SYMLINKS */ -#if HAVE_REMOVE - code = remove(linkname); -#else - code = unlink(linkname); -#endif - if (code != 0 && errno == ENOENT) - code = 0; -#if USE_SYMLINKS - if (symlink(symlinkname, linkname) < 0) -#else - if (link(filename, linkname) < 0) -#endif /* USE_SYMLINKS */ - { - /* - * If there wasn't anything there, and we cannot - * link to the target because it is the same as the - * target, then the source must be on a filesystem - * that uses caseless filenames, such as Win32, etc. - */ - if (code == 0 && errno == EEXIST) - _nc_warning("can't link %s to %s", filename, linkname); - else if (code == 0 && (errno == EPERM || errno == ENOENT)) - write_file(linkname, tp); - else { -#if MIXEDCASE_FILENAMES - _nc_syserr_abort("can't link %s to %s", filename, linkname); -#else - _nc_warning("can't link %s to %s (errno=%d)", filename, - linkname, errno); -#endif - } - } else { - DEBUG(1, ("Linked %s", linkname)); - } - } -#else /* just make copies */ - write_file(linkname, tp); -#endif /* HAVE_LINK */ - } -#endif /* USE_HASHED_DB */ -} - -static unsigned -fake_write(char *dst, - unsigned *offset, - unsigned limit, - char *src, - unsigned want, - unsigned size) -{ - int have = (limit - *offset); - - want *= size; - if (have > 0) { - if ((int) want > have) - want = have; - memcpy(dst + *offset, src, want); - *offset += want; - } else { - want = 0; - } - return (int) (want / size); -} - -#define Write(buf, size, count) fake_write(buffer, offset, limit, (char *) buf, count, size) - -#undef LITTLE_ENDIAN /* BSD/OS defines this as a feature macro */ -#define HI(x) ((x) / 256) -#define LO(x) ((x) % 256) -#define LITTLE_ENDIAN(p, x) (p)[0] = LO(x), (p)[1] = HI(x) - -#define WRITE_STRING(str) (Write(str, sizeof(char), strlen(str) + 1) == strlen(str) + 1) - -static int -compute_offsets(char **Strings, unsigned strmax, short *offsets) -{ - size_t nextfree = 0; - unsigned i; - - for (i = 0; i < strmax; i++) { - if (Strings[i] == ABSENT_STRING) { - offsets[i] = -1; - } else if (Strings[i] == CANCELLED_STRING) { - offsets[i] = -2; - } else { - offsets[i] = nextfree; - nextfree += strlen(Strings[i]) + 1; - TRACE_OUT(("put Strings[%d]=%s(%d)", (int) i, - _nc_visbuf(Strings[i]), nextfree)); - } - } - return nextfree; -} - -static void -convert_shorts(unsigned char *buf, short *Numbers, unsigned count) -{ - unsigned i; - for (i = 0; i < count; i++) { - if (Numbers[i] == ABSENT_NUMERIC) { /* HI/LO won't work */ - buf[2 * i] = buf[2 * i + 1] = 0377; - } else if (Numbers[i] == CANCELLED_NUMERIC) { /* HI/LO won't work */ - buf[2 * i] = 0376; - buf[2 * i + 1] = 0377; - } else { - LITTLE_ENDIAN(buf + 2 * i, Numbers[i]); - TRACE_OUT(("put Numbers[%d]=%d", i, Numbers[i])); - } - } -} - -#define even_boundary(value) \ - ((value) % 2 != 0 && Write(&zero, sizeof(char), 1) != 1) - -#if NCURSES_XNAMES -static unsigned -extended_Booleans(TERMTYPE *tp) -{ - unsigned short result = 0; - unsigned short i; - - for (i = 0; i < tp->ext_Booleans; ++i) { - if (tp->Booleans[BOOLCOUNT + i] == TRUE) - result = (i + 1); - } - return result; -} - -static unsigned -extended_Numbers(TERMTYPE *tp) -{ - unsigned short result = 0; - unsigned short i; - - for (i = 0; i < tp->ext_Numbers; ++i) { - if (tp->Numbers[NUMCOUNT + i] != ABSENT_NUMERIC) - result = (i + 1); - } - return result; -} - -static unsigned -extended_Strings(TERMTYPE *tp) -{ - unsigned short result = 0; - unsigned short i; - - for (i = 0; i < tp->ext_Strings; ++i) { - if (tp->Strings[STRCOUNT + i] != ABSENT_STRING) - result = (i + 1); - } - return result; -} - -/* - * _nc_align_termtype() will extend entries that are referenced in a use= - * clause - discard the unneeded data. - */ -static bool -extended_object(TERMTYPE *tp) -{ - bool result = FALSE; - - if (_nc_user_definable) { - result = ((extended_Booleans(tp) - + extended_Numbers(tp) - + extended_Strings(tp)) != 0); - } - return result; -} -#endif - -static int -write_object(TERMTYPE *tp, char *buffer, unsigned *offset, unsigned limit) -{ - char *namelist; - size_t namelen, boolmax, nummax, strmax; - char zero = '\0'; - size_t i; - short nextfree; - short offsets[MAX_ENTRY_SIZE / 2]; - unsigned char buf[MAX_ENTRY_SIZE]; - unsigned last_bool = BOOLWRITE; - unsigned last_num = NUMWRITE; - unsigned last_str = STRWRITE; - -#if NCURSES_XNAMES - /* - * Normally we limit the list of values to exclude the "obsolete" - * capabilities. However, if we are accepting extended names, add - * these as well, since they are used for supporting translation - * to/from termcap. - */ - if (_nc_user_definable) { - last_bool = BOOLCOUNT; - last_num = NUMCOUNT; - last_str = STRCOUNT; - } -#endif - - namelist = tp->term_names; - namelen = strlen(namelist) + 1; - - boolmax = 0; - for (i = 0; i < last_bool; i++) { - if (tp->Booleans[i] == TRUE) - boolmax = i + 1; - } - - nummax = 0; - for (i = 0; i < last_num; i++) { - if (tp->Numbers[i] != ABSENT_NUMERIC) - nummax = i + 1; - } - - strmax = 0; - for (i = 0; i < last_str; i++) { - if (tp->Strings[i] != ABSENT_STRING) - strmax = i + 1; - } - - nextfree = compute_offsets(tp->Strings, strmax, offsets); - - /* fill in the header */ - LITTLE_ENDIAN(buf, MAGIC); - LITTLE_ENDIAN(buf + 2, min(namelen, MAX_NAME_SIZE + 1)); - LITTLE_ENDIAN(buf + 4, boolmax); - LITTLE_ENDIAN(buf + 6, nummax); - LITTLE_ENDIAN(buf + 8, strmax); - LITTLE_ENDIAN(buf + 10, nextfree); - - /* write out the header */ - TRACE_OUT(("Header of %s @%d", namelist, *offset)); - if (Write(buf, 12, 1) != 1 - || Write(namelist, sizeof(char), namelen) != namelen) - return (ERR); - - for (i = 0; i < boolmax; i++) - if (tp->Booleans[i] == TRUE) - buf[i] = TRUE; - else - buf[i] = FALSE; - if (Write(buf, sizeof(char), boolmax) != boolmax) - return (ERR); - - if (even_boundary(namelen + boolmax)) - return (ERR); - - TRACE_OUT(("Numerics begin at %04x", *offset)); - - /* the numerics */ - convert_shorts(buf, tp->Numbers, nummax); - if (Write(buf, 2, nummax) != nummax) - return (ERR); - - TRACE_OUT(("String offsets begin at %04x", *offset)); - - /* the string offsets */ - convert_shorts(buf, offsets, strmax); - if (Write(buf, 2, strmax) != strmax) - return (ERR); - - TRACE_OUT(("String table begins at %04x", *offset)); - - /* the strings */ - for (i = 0; i < strmax; i++) - if (VALID_STRING(tp->Strings[i])) - if (!WRITE_STRING(tp->Strings[i])) - return (ERR); - -#if NCURSES_XNAMES - if (extended_object(tp)) { - unsigned extcnt = NUM_EXT_NAMES(tp); - - if (even_boundary(nextfree)) - return (ERR); - - nextfree = compute_offsets(tp->Strings + STRCOUNT, tp->ext_Strings, offsets); - TRACE_OUT(("after extended string capabilities, nextfree=%d", nextfree)); - nextfree += compute_offsets(tp->ext_Names, extcnt, offsets + tp->ext_Strings); - TRACE_OUT(("after extended capnames, nextfree=%d", nextfree)); - strmax = tp->ext_Strings + extcnt; - - /* - * Write the extended header - */ - LITTLE_ENDIAN(buf + 0, tp->ext_Booleans); - LITTLE_ENDIAN(buf + 2, tp->ext_Numbers); - LITTLE_ENDIAN(buf + 4, tp->ext_Strings); - LITTLE_ENDIAN(buf + 6, strmax); - LITTLE_ENDIAN(buf + 8, nextfree); - TRACE_OUT(("WRITE extended-header @%d", *offset)); - if (Write(buf, 10, 1) != 1) - return (ERR); - - TRACE_OUT(("WRITE %d booleans @%d", tp->ext_Booleans, *offset)); - if (tp->ext_Booleans - && Write(tp->Booleans + BOOLCOUNT, sizeof(char), - tp->ext_Booleans) != tp->ext_Booleans) - return (ERR); - - if (even_boundary(tp->ext_Booleans)) - return (ERR); - - TRACE_OUT(("WRITE %d numbers @%d", tp->ext_Numbers, *offset)); - if (tp->ext_Numbers) { - convert_shorts(buf, tp->Numbers + NUMCOUNT, tp->ext_Numbers); - if (Write(buf, 2, tp->ext_Numbers) != tp->ext_Numbers) - return (ERR); - } - - /* - * Convert the offsets for the ext_Strings and ext_Names tables, - * in that order. - */ - convert_shorts(buf, offsets, strmax); - TRACE_OUT(("WRITE offsets @%d", *offset)); - if (Write(buf, 2, strmax) != strmax) - return (ERR); - - /* - * Write the string table after the offset tables so we do not - * have to do anything about alignment. - */ - for (i = 0; i < tp->ext_Strings; i++) { - if (VALID_STRING(tp->Strings[i + STRCOUNT])) { - TRACE_OUT(("WRITE ext_Strings[%d]=%s", (int) i, - _nc_visbuf(tp->Strings[i + STRCOUNT]))); - if (!WRITE_STRING(tp->Strings[i + STRCOUNT])) - return (ERR); - } - } - - /* - * Write the extended names - */ - for (i = 0; i < extcnt; i++) { - TRACE_OUT(("WRITE ext_Names[%d]=%s", (int) i, tp->ext_Names[i])); - if (!WRITE_STRING(tp->ext_Names[i])) - return (ERR); - } - - } -#endif /* NCURSES_XNAMES */ - - total_written++; - return (OK); -} - -/* - * Returns the total number of entries written by this process - */ -NCURSES_EXPORT(int) -_nc_tic_written(void) -{ - return total_written; -} |
