diff options
author | dartraiden <wowemuh@gmail.com> | 2022-12-22 16:31:20 +0300 |
---|---|---|
committer | dartraiden <wowemuh@gmail.com> | 2022-12-22 16:31:20 +0300 |
commit | 47b6881fe726c904f87aa4be059b730ef77954d0 (patch) | |
tree | aa72b213043d3b514c883bc59a0fa0c434106156 /libs/libcurl/src/strcase.c | |
parent | 8fbc9220b7f3d3a04bbe45d32489ef882821558e (diff) |
libcurl: update to 7.87.0
Diffstat (limited to 'libs/libcurl/src/strcase.c')
-rw-r--r-- | libs/libcurl/src/strcase.c | 415 |
1 files changed, 204 insertions, 211 deletions
diff --git a/libs/libcurl/src/strcase.c b/libs/libcurl/src/strcase.c index 09d2a8a961..12c497dfd7 100644 --- a/libs/libcurl/src/strcase.c +++ b/libs/libcurl/src/strcase.c @@ -1,211 +1,204 @@ -/*************************************************************************** - * _ _ ____ _ - * Project ___| | | | _ \| | - * / __| | | | |_) | | - * | (__| |_| | _ <| |___ - * \___|\___/|_| \_\_____| - * - * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al. - * - * This software is licensed as described in the file COPYING, which - * you should have received as part of this distribution. The terms - * are also available at https://curl.se/docs/copyright.html. - * - * You may opt to use, copy, modify, merge, publish, distribute and/or sell - * copies of the Software, and permit persons to whom the Software is - * furnished to do so, under the terms of the COPYING file. - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY - * KIND, either express or implied. - * - * SPDX-License-Identifier: curl - * - ***************************************************************************/ - -#include "curl_setup.h" - -#include <curl/curl.h> - -#include "strcase.h" - -/* Mapping table to go from lowercase to uppercase for plain ASCII.*/ -static const unsigned char touppermap[256] = { -0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, -22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, -41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, -60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, -79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 65, -66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, -85, 86, 87, 88, 89, 90, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, -134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, -150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, -166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, -182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, -198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, -214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, -230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, -246, 247, 248, 249, 250, 251, 252, 253, 254, 255 -}; - -/* Mapping table to go from uppercase to lowercase for plain ASCII.*/ -static const unsigned char tolowermap[256] = { -0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, -22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, -42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -62, 63, 64, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, -111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 91, 92, 93, 94, 95, -96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, -112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, -128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, -144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, -160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, -176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, -192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, -208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, -224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, -240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255 -}; - - -/* Portable, consistent toupper. Do not use toupper() because its behavior is - altered by the current locale. */ -char Curl_raw_toupper(char in) -{ - return touppermap[(unsigned char) in]; -} - - -/* Portable, consistent tolower. Do not use tolower() because its behavior is - altered by the current locale. */ -char Curl_raw_tolower(char in) -{ - return tolowermap[(unsigned char) in]; -} - -/* - * Curl_strcasecompare() is for doing "raw" case insensitive strings. This is - * meant to be locale independent and only compare strings we know are safe - * for this. See - * https://daniel.haxx.se/blog/2008/10/15/strcasecmp-in-turkish/ for some - * further explanation to why this function is necessary. - * - * @unittest: 1301 - */ - -int Curl_strcasecompare(const char *first, const char *second) -{ - while(*first && *second) { - if(Curl_raw_toupper(*first) != Curl_raw_toupper(*second)) - /* get out of the loop as soon as they don't match */ - return 0; - first++; - second++; - } - /* If we're here either the strings are the same or the length is different. - We can just test if the "current" character is non-zero for one and zero - for the other. Note that the characters may not be exactly the same even - if they match, we only want to compare zero-ness. */ - return !*first == !*second; -} - -int Curl_safe_strcasecompare(const char *first, const char *second) -{ - if(first && second) - /* both pointers point to something then compare them */ - return Curl_strcasecompare(first, second); - - /* if both pointers are NULL then treat them as equal */ - return (NULL == first && NULL == second); -} - -/* - * @unittest: 1301 - */ -int Curl_strncasecompare(const char *first, const char *second, size_t max) -{ - while(*first && *second && max) { - if(Curl_raw_toupper(*first) != Curl_raw_toupper(*second)) { - break; - } - max--; - first++; - second++; - } - if(0 == max) - return 1; /* they are equal this far */ - - return Curl_raw_toupper(*first) == Curl_raw_toupper(*second); -} - -/* Copy an upper case version of the string from src to dest. The - * strings may overlap. No more than n characters of the string are copied - * (including any NUL) and the destination string will NOT be - * NUL-terminated if that limit is reached. - */ -void Curl_strntoupper(char *dest, const char *src, size_t n) -{ - if(n < 1) - return; - - do { - *dest++ = Curl_raw_toupper(*src); - } while(*src++ && --n); -} - -/* Copy a lower case version of the string from src to dest. The - * strings may overlap. No more than n characters of the string are copied - * (including any NUL) and the destination string will NOT be - * NUL-terminated if that limit is reached. - */ -void Curl_strntolower(char *dest, const char *src, size_t n) -{ - if(n < 1) - return; - - do { - *dest++ = Curl_raw_tolower(*src); - } while(*src++ && --n); -} - -/* Compare case-sensitive NUL-terminated strings, taking care of possible - * null pointers. Return true if arguments match. - */ -bool Curl_safecmp(char *a, char *b) -{ - if(a && b) - return !strcmp(a, b); - return !a && !b; -} - -/* - * Curl_timestrcmp() returns 0 if the two strings are identical. The time this - * function spends is a function of the shortest string, not of the contents. - */ -int Curl_timestrcmp(const char *a, const char *b) -{ - int match = 0; - int i = 0; - - if(a && b) { - while(1) { - match |= a[i]^b[i]; - if(!a[i] || !b[i]) - break; - i++; - } - } - else - return a || b; - return match; -} - -/* --- public functions --- */ - -int curl_strequal(const char *first, const char *second) -{ - return Curl_strcasecompare(first, second); -} -int curl_strnequal(const char *first, const char *second, size_t max) -{ - return Curl_strncasecompare(first, second, max); -} +/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+
+#include <curl/curl.h>
+
+#include "strcase.h"
+
+/* Mapping table to go from lowercase to uppercase for plain ASCII.*/
+static const unsigned char touppermap[256] = {
+0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78,
+79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 65,
+66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84,
+85, 86, 87, 88, 89, 90, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133,
+134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
+150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165,
+166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181,
+182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197,
+198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213,
+214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229,
+230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245,
+246, 247, 248, 249, 250, 251, 252, 253, 254, 255
+};
+
+/* Mapping table to go from uppercase to lowercase for plain ASCII.*/
+static const unsigned char tolowermap[256] = {
+0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
+42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,
+62, 63, 64, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110,
+111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 91, 92, 93, 94, 95,
+96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
+112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
+128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
+144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
+160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
+176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
+192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
+208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
+224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
+240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
+};
+
+
+/* Portable, consistent toupper. Do not use toupper() because its behavior is
+ altered by the current locale. */
+char Curl_raw_toupper(char in)
+{
+ return touppermap[(unsigned char) in];
+}
+
+
+/* Portable, consistent tolower. Do not use tolower() because its behavior is
+ altered by the current locale. */
+char Curl_raw_tolower(char in)
+{
+ return tolowermap[(unsigned char) in];
+}
+
+/*
+ * curl_strequal() is for doing "raw" case insensitive strings. This is meant
+ * to be locale independent and only compare strings we know are safe for
+ * this. See https://daniel.haxx.se/blog/2008/10/15/strcasecmp-in-turkish/ for
+ * further explanations as to why this function is necessary.
+ */
+
+static int casecompare(const char *first, const char *second)
+{
+ while(*first && *second) {
+ if(Curl_raw_toupper(*first) != Curl_raw_toupper(*second))
+ /* get out of the loop as soon as they don't match */
+ return 0;
+ first++;
+ second++;
+ }
+ /* If we're here either the strings are the same or the length is different.
+ We can just test if the "current" character is non-zero for one and zero
+ for the other. Note that the characters may not be exactly the same even
+ if they match, we only want to compare zero-ness. */
+ return !*first == !*second;
+}
+
+/* --- public function --- */
+int curl_strequal(const char *first, const char *second)
+{
+ if(first && second)
+ /* both pointers point to something then compare them */
+ return casecompare(first, second);
+
+ /* if both pointers are NULL then treat them as equal */
+ return (NULL == first && NULL == second);
+}
+
+static int ncasecompare(const char *first, const char *second, size_t max)
+{
+ while(*first && *second && max) {
+ if(Curl_raw_toupper(*first) != Curl_raw_toupper(*second))
+ return 0;
+ max--;
+ first++;
+ second++;
+ }
+ if(0 == max)
+ return 1; /* they are equal this far */
+
+ return Curl_raw_toupper(*first) == Curl_raw_toupper(*second);
+}
+
+/* --- public function --- */
+int curl_strnequal(const char *first, const char *second, size_t max)
+{
+ if(first && second)
+ /* both pointers point to something then compare them */
+ return ncasecompare(first, second, max);
+
+ /* if both pointers are NULL then treat them as equal if max is non-zero */
+ return (NULL == first && NULL == second && max);
+}
+/* Copy an upper case version of the string from src to dest. The
+ * strings may overlap. No more than n characters of the string are copied
+ * (including any NUL) and the destination string will NOT be
+ * NUL-terminated if that limit is reached.
+ */
+void Curl_strntoupper(char *dest, const char *src, size_t n)
+{
+ if(n < 1)
+ return;
+
+ do {
+ *dest++ = Curl_raw_toupper(*src);
+ } while(*src++ && --n);
+}
+
+/* Copy a lower case version of the string from src to dest. The
+ * strings may overlap. No more than n characters of the string are copied
+ * (including any NUL) and the destination string will NOT be
+ * NUL-terminated if that limit is reached.
+ */
+void Curl_strntolower(char *dest, const char *src, size_t n)
+{
+ if(n < 1)
+ return;
+
+ do {
+ *dest++ = Curl_raw_tolower(*src);
+ } while(*src++ && --n);
+}
+
+/* Compare case-sensitive NUL-terminated strings, taking care of possible
+ * null pointers. Return true if arguments match.
+ */
+bool Curl_safecmp(char *a, char *b)
+{
+ if(a && b)
+ return !strcmp(a, b);
+ return !a && !b;
+}
+
+/*
+ * Curl_timestrcmp() returns 0 if the two strings are identical. The time this
+ * function spends is a function of the shortest string, not of the contents.
+ */
+int Curl_timestrcmp(const char *a, const char *b)
+{
+ int match = 0;
+ int i = 0;
+
+ if(a && b) {
+ while(1) {
+ match |= a[i]^b[i];
+ if(!a[i] || !b[i])
+ break;
+ i++;
+ }
+ }
+ else
+ return a || b;
+ return match;
+}
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