Move byteorder.h to include/atalk

[netatalk.git] / libatalk / unicode / util_unistr.c

diff --git a/libatalk/unicode/util_unistr.c b/libatalk/unicode/util_unistr.c
index 416c38d0b86d5aaf098a5d09fb8891569fc8c324..c163d6f6e3f6366d75d7503ba64787dd3356e255 100644 (file)
--- a/libatalk/unicode/util_unistr.c
+++ b/libatalk/unicode/util_unistr.c
@@ -22,8 +22,9 @@
 #include <arpa/inet.h>
 
 #include <atalk/unicode.h>
+#include <atalk/byteorder.h>
+
 #include "precompose.h"
-#include "byteorder.h"
 
 /*******************************************************************
  Convert a string to lower case.
@@ -38,8 +39,8 @@ int strlower_w(ucs2_t *s)
        while (*s) {
                if ((0xD800 <= *s) && (*s < 0xDC00)) {
                        if ((0xDC00 <= s[1]) && (s[1] < 0xE000)) {
-                               u_int32_t s_sp = (u_int32_t)*s << 16 | (u_int32_t)s[1];
-                               u_int32_t v_sp = tolower_sp(s_sp);
+                               uint32_t s_sp = (uint32_t)*s << 16 | (uint32_t)s[1];
+                               uint32_t v_sp = tolower_sp(s_sp);
                                if (v_sp != s_sp) {
                                        *s = v_sp >> 16;
                                        s++;
@@ -72,8 +73,8 @@ int strupper_w(ucs2_t *s)
        while (*s) {
                if ((0xD800 <= *s) && (*s < 0xDC00)) {
                        if ((0xDC00 <= s[1]) && (s[1] < 0xE000)) {
-                               u_int32_t s_sp = (u_int32_t)*s << 16 | (u_int32_t)s[1];
-                               u_int32_t v_sp = toupper_sp(s_sp);
+                               uint32_t s_sp = (uint32_t)*s << 16 | (uint32_t)s[1];
+                               uint32_t v_sp = toupper_sp(s_sp);
                                if (v_sp != s_sp) {
                                        *s = v_sp >> 16;
                                        s++;
@@ -104,7 +105,7 @@ int islower_w(ucs2_t c)
        return ( c == tolower_w(c));
 }
 
-int islower_sp(u_int32_t c_sp)
+int islower_sp(uint32_t c_sp)
 {
        return ( c_sp == tolower_sp(c_sp));
 }
@@ -120,7 +121,7 @@ int isupper_w(ucs2_t c)
        return ( c == toupper_w(c));
 }
 
-int isupper_sp(u_int32_t c_sp)
+int isupper_sp(uint32_t c_sp)
 {
        return ( c_sp == toupper_sp(c_sp));
 }
@@ -179,8 +180,7 @@ wide & sp strcasechr()
 ucs2_t *strcasechr_w(const ucs2_t *s, ucs2_t c)
 {
        while (*s != 0) {
-/*             LOG(log_debug, logtype_default, "Comparing %X to %X (%X - %X)", c, *s, toupper_w(c), toupper_w(*s));*/
-               if (toupper_w(c) == toupper_w(*s)) return (ucs2_t *)s;
+               if (tolower_w(c) == tolower_w(*s)) return (ucs2_t *)s;
                s++;
        }
        if (c == *s) return (ucs2_t *)s;
@@ -188,11 +188,11 @@ ucs2_t *strcasechr_w(const ucs2_t *s, ucs2_t c)
        return NULL;
 }
 
-ucs2_t *strcasechr_sp(const ucs2_t *s, u_int32_t c_sp)
+ucs2_t *strcasechr_sp(const ucs2_t *s, uint32_t c_sp)
 {
        if (*s == 0) return NULL;
        while (s[1] != 0) {
-               if (toupper_sp(c_sp) == toupper_sp((u_int32_t)*s << 16 | (u_int32_t)s[1])) return (ucs2_t *)s;
+               if (tolower_sp(c_sp) == tolower_sp((uint32_t)*s << 16 | (uint32_t)s[1])) return (ucs2_t *)s;
                s++;
        }
 
@@ -249,7 +249,7 @@ ucs2_t *strstr_w(const ucs2_t *s, const ucs2_t *ins)
 /*******************************************************************
 wide strcasestr()
 ********************************************************************/
-/* */
+/* surrogate pair support */
 
 ucs2_t *strcasestr_w(const ucs2_t *s, const ucs2_t *ins)
 {
@@ -260,9 +260,22 @@ ucs2_t *strcasestr_w(const ucs2_t *s, const ucs2_t *ins)
        slen = strlen_w(s);
        inslen = strlen_w(ins);
        r = (ucs2_t *)s;
-       while ((r = strcasechr_w(r, *ins))) {
-               if (strncasecmp_w(r, ins, inslen) == 0) return r;
-               r++;
+
+       if ((0xD800 <= *ins) && (*ins < 0xDC00)) {
+               if ((0xDC00 <= ins[1]) && (ins[1] < 0xE000)) {
+                       uint32_t ins_sp = (uint32_t)*ins << 16 | (uint32_t)ins[1];
+                       while ((r = strcasechr_sp(r, ins_sp))) {
+                               if (strncasecmp_w(r, ins, inslen) == 0) return r;
+                               r++;
+                       }
+               } else {
+                       return NULL; /* illegal sequence */
+               }
+       } else {
+               while ((r = strcasechr_w(r, *ins))) {
+                       if (strncasecmp_w(r, ins, inslen) == 0) return r;
+                       r++;
+               }
        }
        return NULL;
 }
@@ -279,7 +292,7 @@ int strcasecmp_w(const ucs2_t *a, const ucs2_t *b)
 
        while (*a && *b) {
                if ((0xD800 <= *a) && (*a < 0xDC00)) {
-                       if (ret = tolower_sp((u_int32_t)*a << 16 | (u_int32_t)a[1]) - tolower_sp((u_int32_t)*b << 16 | (u_int32_t)b[1])) return ret;
+                       if (ret = tolower_sp((uint32_t)*a << 16 | (uint32_t)a[1]) - tolower_sp((uint32_t)*b << 16 | (uint32_t)b[1])) return ret;
                        a++;
                        b++;
                        if (!(*a && *b)) return (tolower_w(*a) - tolower_w(*b)); /* avoid buffer over run */
@@ -305,7 +318,7 @@ int strncasecmp_w(const ucs2_t *a, const ucs2_t *b, size_t len)
 
        while ((n < len) && *a && *b) {
                if ((0xD800 <= *a) && (*a < 0xDC00)) {
-                       if (ret = tolower_sp((u_int32_t)*a << 16 | (u_int32_t)a[1]) - tolower_sp((u_int32_t)*b << 16 | (u_int32_t)b[1])) return ret;
+                       if (ret = tolower_sp((uint32_t)*a << 16 | (uint32_t)a[1]) - tolower_sp((uint32_t)*b << 16 | (uint32_t)b[1])) return ret;
                        a++;
                        b++;
                        n++;
@@ -358,6 +371,8 @@ ucs2_t *strdup_w(const ucs2_t *src)
 /*******************************************************************
 copy a string with max len
 ********************************************************************/
+/* This function is not used. */
+/* NOTE: not check isolation of surrogate pair */
 
 ucs2_t *strncpy_w(ucs2_t *dest, const ucs2_t *src, const size_t max)
 {
@@ -377,7 +392,9 @@ ucs2_t *strncpy_w(ucs2_t *dest, const ucs2_t *src, const size_t max)
 /*******************************************************************
 append a string of len bytes and add a terminator
 ********************************************************************/
+/* These functions are not used. */
 
+/* NOTE: not check isolation of surrogate pair */
 ucs2_t *strncat_w(ucs2_t *dest, const ucs2_t *src, const size_t max)
 {
        size_t start;
@@ -394,7 +411,7 @@ ucs2_t *strncat_w(ucs2_t *dest, const ucs2_t *src, const size_t max)
        return dest;
 }
 
-
+/* no problem of surrogate pair */
 ucs2_t *strcat_w(ucs2_t *dest, const ucs2_t *src)
 {
        size_t start;
@@ -552,8 +569,6 @@ size_t precompose_w (ucs2_t *name, size_t inplen, ucs2_t *comp, size_t *outlen)
        base = *in;
        while (*outlen > 2) {
                i += 2;
-               in++;
-
                if (i == inplen) {
                        *out = base;
                        out++;
@@ -561,7 +576,7 @@ size_t precompose_w (ucs2_t *name, size_t inplen, ucs2_t *comp, size_t *outlen)
                        *outlen -= 2;
                        return o_len - *outlen;
                }
-
+               in++;
                comb = *in;
                result = 0;
 
@@ -589,7 +604,7 @@ size_t precompose_w (ucs2_t *name, size_t inplen, ucs2_t *comp, size_t *outlen)
                
                /* Binary Search for Surrogate Pair */
                else if ((0xD800 <= base) && (base < 0xDC00)) {
-                       if ((0xDC00 <= comb) && (comb < 0xE000) && (i + 4 <= inplen)) {
+                       if ((0xDC00 <= comb) && (comb < 0xE000) && (i + 6 <= inplen)) {
                                base_sp = ((uint32_t)base << 16) | (uint32_t)comb;
                                do {
                                        comb_sp = ((uint32_t)in[1] << 16) | (uint32_t)in[2];
@@ -598,7 +613,7 @@ size_t precompose_w (ucs2_t *name, size_t inplen, ucs2_t *comp, size_t *outlen)
                                                i += 4;
                                                in +=2;
                                        }
-                               } while ((i + 4 <= inplen) && result_sp) ;
+                               } while ((i + 6 <= inplen) && result_sp) ;
 
                                *out = base_sp >> 16;
                                out++;
@@ -614,6 +629,11 @@ size_t precompose_w (ucs2_t *name, size_t inplen, ucs2_t *comp, size_t *outlen)
                                *outlen -= 2;
 
                                i += 2;
+                               if (i == inplen) {
+                                       out++;
+                                       *out = 0;
+                                       return o_len - *outlen;
+                               }
                                in++;
                                base = *in;