--- /dev/null
+/*-
+ * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
+ * at Electronni Visti IA, Kiev, Ukraine.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/lib/libc/locale/collate.c,v 1.32 2002/10/29 09:03:57 tjr Exp $");
+
+#include "namespace.h"
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sysexits.h>
+#include "un-namespace.h"
+
+#include "collate.h"
+#include "setlocale.h"
+#include "ldpart.h"
+
+#include "libc_private.h"
+
+int __collate_load_error = 1;
+int __collate_substitute_nontrivial;
+
+u_char __collate_substitute_table[UCHAR_MAX + 1][STR_LEN];
+struct __collate_st_char_pri __collate_char_pri_table[UCHAR_MAX + 1];
+struct __collate_st_chain_pri *__collate_chain_pri_table;
+
+void __collate_err(int ex, const char *f) __dead2;
+
+int
+__collate_load_tables(const char *encoding)
+{
+ FILE *fp;
+ int i, saverr, chains;
+ uint32_t u32;
+ char strbuf[STR_LEN], buf[PATH_MAX];
+ void *TMP_substitute_table, *TMP_char_pri_table, *TMP_chain_pri_table;
+ static char collate_encoding[ENCODING_LEN + 1];
+
+ /* 'encoding' must be already checked. */
+ if (strcmp(encoding, "C") == 0 || strcmp(encoding, "POSIX") == 0) {
+ __collate_load_error = 1;
+ return (_LDP_CACHE);
+ }
+
+ /*
+ * If the locale name is the same as our cache, use the cache.
+ */
+ if (strcmp(encoding, collate_encoding) == 0) {
+ __collate_load_error = 0;
+ return (_LDP_CACHE);
+ }
+
+ /*
+ * Slurp the locale file into the cache.
+ */
+
+ /* 'PathLocale' must be already set & checked. */
+ /* Range checking not needed, encoding has fixed size */
+ (void)strcpy(buf, _PathLocale);
+ (void)strcat(buf, "/");
+ (void)strcat(buf, encoding);
+ (void)strcat(buf, "/LC_COLLATE");
+ if ((fp = fopen(buf, "r")) == NULL)
+ return (_LDP_ERROR);
+
+ if (fread(strbuf, sizeof(strbuf), 1, fp) != 1) {
+ saverr = errno;
+ (void)fclose(fp);
+ errno = saverr;
+ return (_LDP_ERROR);
+ }
+ chains = -1;
+ if (strcmp(strbuf, COLLATE_VERSION) == 0)
+ chains = 0;
+ else if (strcmp(strbuf, COLLATE_VERSION1_1) == 0)
+ chains = 1;
+ if (chains < 0) {
+ (void)fclose(fp);
+ errno = EFTYPE;
+ return (_LDP_ERROR);
+ }
+ if (chains) {
+ if (fread(&u32, sizeof(u32), 1, fp) != 1) {
+ saverr = errno;
+ (void)fclose(fp);
+ errno = saverr;
+ return (_LDP_ERROR);
+ }
+ if ((chains = (int)ntohl(u32)) < 1) {
+ (void)fclose(fp);
+ errno = EFTYPE;
+ return (_LDP_ERROR);
+ }
+ } else
+ chains = TABLE_SIZE;
+
+ if ((TMP_substitute_table =
+ malloc(sizeof(__collate_substitute_table))) == NULL) {
+ saverr = errno;
+ (void)fclose(fp);
+ errno = saverr;
+ return (_LDP_ERROR);
+ }
+ if ((TMP_char_pri_table =
+ malloc(sizeof(__collate_char_pri_table))) == NULL) {
+ saverr = errno;
+ free(TMP_substitute_table);
+ (void)fclose(fp);
+ errno = saverr;
+ return (_LDP_ERROR);
+ }
+ if ((TMP_chain_pri_table =
+ malloc(sizeof(*__collate_chain_pri_table) * chains)) == NULL) {
+ saverr = errno;
+ free(TMP_substitute_table);
+ free(TMP_char_pri_table);
+ (void)fclose(fp);
+ errno = saverr;
+ return (_LDP_ERROR);
+ }
+
+#define FREAD(a, b, c, d) \
+{ \
+ if (fread(a, b, c, d) != c) { \
+ saverr = errno; \
+ free(TMP_substitute_table); \
+ free(TMP_char_pri_table); \
+ free(TMP_chain_pri_table); \
+ (void)fclose(d); \
+ errno = saverr; \
+ return (_LDP_ERROR); \
+ } \
+}
+
+ FREAD(TMP_substitute_table, sizeof(__collate_substitute_table), 1, fp);
+ FREAD(TMP_char_pri_table, sizeof(__collate_char_pri_table), 1, fp);
+ FREAD(TMP_chain_pri_table,
+ sizeof(*__collate_chain_pri_table), chains, fp);
+ (void)fclose(fp);
+
+ (void)strcpy(collate_encoding, encoding);
+ if (__collate_substitute_table_ptr != NULL)
+ free(__collate_substitute_table_ptr);
+ __collate_substitute_table_ptr = TMP_substitute_table;
+ if (__collate_char_pri_table_ptr != NULL)
+ free(__collate_char_pri_table_ptr);
+ __collate_char_pri_table_ptr = TMP_char_pri_table;
+ if (__collate_chain_pri_table != NULL)
+ free(__collate_chain_pri_table);
+ __collate_chain_pri_table = TMP_chain_pri_table;
+
+ __collate_substitute_nontrivial = 0;
+ for (i = 0; i < UCHAR_MAX + 1; i++) {
+ if (__collate_substitute_table[i][0] != i ||
+ __collate_substitute_table[i][1] != 0) {
+ __collate_substitute_nontrivial = 1;
+ break;
+ }
+ }
+ __collate_load_error = 0;
+
+ return (_LDP_LOADED);
+}
+
+u_char *
+__collate_substitute(s)
+ const u_char *s;
+{
+ int dest_len, len, nlen;
+ int delta = strlen(s);
+ u_char *dest_str = NULL;
+
+ if (s == NULL || *s == '\0')
+ return (__collate_strdup(""));
+ delta += delta / 8;
+ dest_str = malloc(dest_len = delta);
+ if (dest_str == NULL)
+ __collate_err(EX_OSERR, __FUNCTION__);
+ len = 0;
+ while (*s) {
+ nlen = len + strlen(__collate_substitute_table[*s]);
+ if (dest_len <= nlen) {
+ dest_str = reallocf(dest_str, dest_len = nlen + delta);
+ if (dest_str == NULL)
+ __collate_err(EX_OSERR, __FUNCTION__);
+ }
+ (void)strcpy(dest_str + len, __collate_substitute_table[*s++]);
+ len = nlen;
+ }
+ return (dest_str);
+}
+
+void
+__collate_lookup(t, len, prim, sec)
+ const u_char *t;
+ int *len, *prim, *sec;
+{
+ struct __collate_st_chain_pri *p2;
+
+ *len = 1;
+ *prim = *sec = 0;
+ for (p2 = __collate_chain_pri_table; p2->str[0] != '\0'; p2++) {
+ if (*t == p2->str[0] &&
+ strncmp(t, p2->str, strlen(p2->str)) == 0) {
+ *len = strlen(p2->str);
+ *prim = p2->prim;
+ *sec = p2->sec;
+ return;
+ }
+ }
+ *prim = __collate_char_pri_table[*t].prim;
+ *sec = __collate_char_pri_table[*t].sec;
+}
+
+u_char *
+__collate_strdup(s)
+ u_char *s;
+{
+ u_char *t = strdup(s);
+
+ if (t == NULL)
+ __collate_err(EX_OSERR, __FUNCTION__);
+ return (t);
+}
+
+void
+__collate_err(int ex, const char *f)
+{
+ const char *s;
+ int serrno = errno;
+
+ s = _getprogname();
+ _write(STDERR_FILENO, s, strlen(s));
+ _write(STDERR_FILENO, ": ", 2);
+ s = f;
+ _write(STDERR_FILENO, s, strlen(s));
+ _write(STDERR_FILENO, ": ", 2);
+ s = strerror(serrno);
+ _write(STDERR_FILENO, s, strlen(s));
+ _write(STDERR_FILENO, "\n", 1);
+ exit(ex);
+}
+
+#ifdef COLLATE_DEBUG
+void
+__collate_print_tables()
+{
+ int i;
+ struct __collate_st_chain_pri *p2;
+
+ printf("Substitute table:\n");
+ for (i = 0; i < UCHAR_MAX + 1; i++)
+ if (i != *__collate_substitute_table[i])
+ printf("\t'%c' --> \"%s\"\n", i,
+ __collate_substitute_table[i]);
+ printf("Chain priority table:\n");
+ for (p2 = __collate_chain_pri_table; p2->str[0] != '\0'; p2++)
+ printf("\t\"%s\" : %d %d\n", p2->str, p2->prim, p2->sec);
+ printf("Char priority table:\n");
+ for (i = 0; i < UCHAR_MAX + 1; i++)
+ printf("\t'%c' : %d %d\n", i, __collate_char_pri_table[i].prim,
+ __collate_char_pri_table[i].sec);
+}
+#endif
projects / apple / libc.git / blobdiff