detaint paths added by blib.pm

[perl5.git] / locale.c

diff --git a/locale.c b/locale.c
index 567a97a..bd93cd6 100644 (file)
--- a/locale.c
+++ b/locale.c
@@ -1,7 +1,7 @@
 /*    locale.c
  *
- *    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- *    2000, 2001, 2002, 2003, 2005, by Larry Wall and others
+ *    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ *    2002, 2003, 2005, 2006, 2007, 2008 by Larry Wall and others
  *
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
@@ -9,13 +9,15 @@
  */
 
 /*
- * A Elbereth Gilthoniel,
- * silivren penna míriel
- * o menel aglar elenath!
- * Na-chaered palan-díriel
- * o galadhremmin ennorath,
- * Fanuilos, le linnathon
- * nef aear, si nef aearon!
+ *      A Elbereth Gilthoniel,
+ *      silivren penna míriel
+ *      o menel aglar elenath!
+ *      Na-chaered palan-díriel
+ *      o galadhremmin ennorath,
+ *      Fanuilos, le linnathon
+ *      nef aear, si nef aearon!
+ *
+ *     [p.238 of _The Lord of the Rings_, II/i: "Many Meetings"]
  */
 
 /* utility functions for handling locale-specific stuff like what
@@ -56,6 +58,8 @@ S_stdize_locale(pTHX_ char *locs)
     const char * const s = strchr(locs, '=');
     bool okay = TRUE;
 
+    PERL_ARGS_ASSERT_STDIZE_LOCALE;
+
     if (s) {
        const char * const t = strchr(s, '.');
        okay = FALSE;
@@ -81,13 +85,14 @@ void
 Perl_set_numeric_radix(pTHX)
 {
 #ifdef USE_LOCALE_NUMERIC
+    dVAR;
 # ifdef HAS_LOCALECONV
     const struct lconv* const lc = localeconv();
 
     if (lc && lc->decimal_point) {
        if (lc->decimal_point[0] == '.' && lc->decimal_point[1] == 0) {
            SvREFCNT_dec(PL_numeric_radix_sv);
-           PL_numeric_radix_sv = Nullsv;
+           PL_numeric_radix_sv = NULL;
        }
        else {
            if (PL_numeric_radix_sv)
@@ -97,7 +102,7 @@ Perl_set_numeric_radix(pTHX)
        }
     }
     else
-       PL_numeric_radix_sv = Nullsv;
+       PL_numeric_radix_sv = NULL;
 # endif /* HAS_LOCALECONV */
 #endif /* USE_LOCALE_NUMERIC */
 }
@@ -109,6 +114,7 @@ void
 Perl_new_numeric(pTHX_ const char *newnum)
 {
 #ifdef USE_LOCALE_NUMERIC
+    dVAR;
 
     if (! newnum) {
        Safefree(PL_numeric_name);
@@ -134,6 +140,7 @@ void
 Perl_set_numeric_standard(pTHX)
 {
 #ifdef USE_LOCALE_NUMERIC
+    dVAR;
 
     if (! PL_numeric_standard) {
        setlocale(LC_NUMERIC, "C");
@@ -149,6 +156,7 @@ void
 Perl_set_numeric_local(pTHX)
 {
 #ifdef USE_LOCALE_NUMERIC
+    dVAR;
 
     if (! PL_numeric_local) {
        setlocale(LC_NUMERIC, PL_numeric_name);
@@ -170,6 +178,8 @@ Perl_new_ctype(pTHX_ const char *newctype)
     dVAR;
     int i;
 
+    PERL_ARGS_ASSERT_NEW_CTYPE;
+
     for (i = 0; i < 256; i++) {
        if (isUPPER_LC(i))
            PL_fold_locale[i] = toLOWER_LC(i);
@@ -180,7 +190,9 @@ Perl_new_ctype(pTHX_ const char *newctype)
     }
 
 #endif /* USE_LOCALE_CTYPE */
+    PERL_ARGS_ASSERT_NEW_CTYPE;
     PERL_UNUSED_ARG(newctype);
+    PERL_UNUSED_CONTEXT;
 }
 
 /*
@@ -190,6 +202,7 @@ void
 Perl_new_collate(pTHX_ const char *newcoll)
 {
 #ifdef USE_LOCALE_COLLATE
+    dVAR;
 
     if (! newcoll) {
        if (PL_collation_name) {
@@ -242,6 +255,7 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
      */
 
 #if defined(USE_LOCALE)
+    dVAR;
 
 #ifdef USE_LOCALE_CTYPE
     char *curctype   = NULL;
@@ -277,28 +291,31 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
     }
     if (!setlocale_failure) {
 #ifdef USE_LOCALE_CTYPE
+       Safefree(curctype);
        if (! (curctype =
               setlocale(LC_CTYPE,
                         (!done && (lang || PerlEnv_getenv("LC_CTYPE")))
-                                   ? "" : Nullch)))
+                                   ? "" : NULL)))
            setlocale_failure = TRUE;
        else
            curctype = savepv(curctype);
 #endif /* USE_LOCALE_CTYPE */
 #ifdef USE_LOCALE_COLLATE
+       Safefree(curcoll);
        if (! (curcoll =
               setlocale(LC_COLLATE,
                         (!done && (lang || PerlEnv_getenv("LC_COLLATE")))
-                                  ? "" : Nullch)))
+                                  ? "" : NULL)))
            setlocale_failure = TRUE;
        else
            curcoll = savepv(curcoll);
 #endif /* USE_LOCALE_COLLATE */
 #ifdef USE_LOCALE_NUMERIC
+       Safefree(curnum);
        if (! (curnum =
               setlocale(LC_NUMERIC,
                         (!done && (lang || PerlEnv_getenv("LC_NUMERIC")))
-                                 ? "" : Nullch)))
+                                 ? "" : NULL)))
            setlocale_failure = TRUE;
        else
            curnum = savepv(curnum);
@@ -316,18 +333,21 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
 
     if (!setlocale_failure) {
 #ifdef USE_LOCALE_CTYPE
+       Safefree(curctype);
        if (! (curctype = setlocale(LC_CTYPE, "")))
            setlocale_failure = TRUE;
        else
            curctype = savepv(curctype);
 #endif /* USE_LOCALE_CTYPE */
 #ifdef USE_LOCALE_COLLATE
+       Safefree(curcoll);
        if (! (curcoll = setlocale(LC_COLLATE, "")))
            setlocale_failure = TRUE;
        else
            curcoll = savepv(curcoll);
 #endif /* USE_LOCALE_COLLATE */
 #ifdef USE_LOCALE_NUMERIC
+       Safefree(curnum);
        if (! (curnum = setlocale(LC_NUMERIC, "")))
            setlocale_failure = TRUE;
        else
@@ -448,13 +468,16 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
 #endif /* ! LC_ALL */
 
 #ifdef USE_LOCALE_CTYPE
-       curctype = savepv(setlocale(LC_CTYPE, Nullch));
+       Safefree(curctype);
+       curctype = savepv(setlocale(LC_CTYPE, NULL));
 #endif /* USE_LOCALE_CTYPE */
 #ifdef USE_LOCALE_COLLATE
-       curcoll = savepv(setlocale(LC_COLLATE, Nullch));
+       Safefree(curcoll);
+       curcoll = savepv(setlocale(LC_COLLATE, NULL));
 #endif /* USE_LOCALE_COLLATE */
 #ifdef USE_LOCALE_NUMERIC
-       curnum = savepv(setlocale(LC_NUMERIC, Nullch));
+       Safefree(curnum);
+       curnum = savepv(setlocale(LC_NUMERIC, NULL));
 #endif /* USE_LOCALE_NUMERIC */
     }
     else {
@@ -499,23 +522,23 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
         codeset = nl_langinfo(CODESET);
 #endif
         if (codeset)
-             utf8locale = (ibcmp(codeset, STR_WITH_LEN("UTF-8")) == 0 ||
-                           ibcmp(codeset, STR_WITH_LEN("UTF8") ) == 0);
+             utf8locale = (foldEQ(codeset, STR_WITH_LEN("UTF-8"))
+                           || foldEQ(codeset, STR_WITH_LEN("UTF8") ));
 #if defined(USE_LOCALE)
         else { /* nl_langinfo(CODESET) is supposed to correctly
                 * interpret the locale environment variables,
                 * but just in case it fails, let's do this manually. */ 
              if (lang)
-                  utf8locale = (ibcmp(lang, STR_WITH_LEN("UTF-8")) == 0 ||
-                                ibcmp(lang, STR_WITH_LEN("UTF8") ) == 0);
+                  utf8locale = (foldEQ(lang, STR_WITH_LEN("UTF-8"))
+                                || foldEQ(lang, STR_WITH_LEN("UTF8") ));
 #ifdef USE_LOCALE_CTYPE
              if (curctype)
-                  utf8locale = (ibcmp(curctype, STR_WITH_LEN("UTF-8")) == 0 ||
-                                ibcmp(curctype, STR_WITH_LEN("UTF8") ) == 0);
+                  utf8locale = (foldEQ(curctype, STR_WITH_LEN("UTF-8"))
+                                || foldEQ(curctype, STR_WITH_LEN("UTF8") ));
 #endif
              if (lc_all)
-                  utf8locale = (ibcmp(lc_all, STR_WITH_LEN("UTF-8")) == 0 ||
-                                ibcmp(lc_all, STR_WITH_LEN("UTF8") ) == 0);
+                  utf8locale = (foldEQ(lc_all, STR_WITH_LEN("UTF-8"))
+                                || foldEQ(lc_all, STR_WITH_LEN("UTF8") ));
         }
 #endif /* USE_LOCALE */
         if (utf8locale)
@@ -527,6 +550,8 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
     {
         const char *p = PerlEnv_getenv("PERL_UNICODE");
         PL_unicode = p ? parse_unicode_opts(&p) : 0;
+        if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
+            PL_utf8cache = -1;
     }
 #endif
 
@@ -555,9 +580,12 @@ Perl_init_i18nl10n(pTHX_ int printwarn)
 char *
 Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen)
 {
+    dVAR;
     char *xbuf;
     STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */
 
+    PERL_ARGS_ASSERT_MEM_COLLXFRM;
+
     /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */
     /* the +1 is for the terminating NUL. */
 
@@ -569,11 +597,11 @@ Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen)
     *(U32*)xbuf = PL_collation_ix;
     xout = sizeof(PL_collation_ix);
     for (xin = 0; xin < len; ) {
-       SSize_t xused;
+       Size_t xused;
 
        for (;;) {
            xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout);
-           if (xused == -1)
+           if (xused >= PERL_INT_MAX)
                goto bad;
            if ((STRLEN)xused < xAlloc - xout)
                break;