Raise an error on syscall failure in tls_retry_write_records

[thirdparty/openssl.git] / crypto / ctype.c

diff --git a/crypto/ctype.c b/crypto/ctype.c
index 588c6dac3cc2c4ac390db55864b00607ba8eecf7..48b3025ba539dfdc404b7c063532db48957995c4 100644 (file)
--- a/crypto/ctype.c
+++ b/crypto/ctype.c
@@ -1,15 +1,16 @@
 /*
- * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */
 
 #include <string.h>
-#include "internal/ctype.h"
-#include "openssl/ebcdic.h"
+#include <stdio.h>
+#include "crypto/ctype.h"
+#include <openssl/ebcdic.h>
 
 /*
  * Define the character classes for each character in the seven bit ASCII
@@ -225,7 +226,7 @@ static const unsigned short ctype_char_map[128] = {
 #ifdef CHARSET_EBCDIC
 int ossl_toascii(int c)
 {
-    if (c < -128 || c > 256)
+    if (c < -128 || c > 256 || c == EOF)
         return c;
     /*
      * Adjust negatively signed characters.
@@ -240,7 +241,7 @@ int ossl_toascii(int c)
 
 int ossl_fromascii(int c)
 {
-    if (c < -128 || c > 256)
+    if (c < -128 || c > 256 || c == EOF)
         return c;
     if (c < 0)
         c += 256;
@@ -256,6 +257,36 @@ int ossl_ctype_check(int c, unsigned int mask)
     return a >= 0 && a < max && (ctype_char_map[a] & mask) != 0;
 }
 
+/*
+ * Implement some of the simpler functions directly to avoid the overhead of
+ * accessing memory via ctype_char_map[].
+ */
+
+#define ASCII_IS_DIGIT(c)   (c >= 0x30 && c <= 0x39)
+#define ASCII_IS_UPPER(c)   (c >= 0x41 && c <= 0x5A)
+#define ASCII_IS_LOWER(c)   (c >= 0x61 && c <= 0x7A)
+
+int ossl_isdigit(int c)
+{
+    int a = ossl_toascii(c);
+
+    return ASCII_IS_DIGIT(a);
+}
+
+int ossl_isupper(int c)
+{
+    int a = ossl_toascii(c);
+
+    return ASCII_IS_UPPER(a);
+}
+
+int ossl_islower(int c)
+{
+    int a = ossl_toascii(c);
+
+    return ASCII_IS_LOWER(a);
+}
+
 #if defined(CHARSET_EBCDIC) && !defined(CHARSET_EBCDIC_TEST)
 static const int case_change = 0x40;
 #else
@@ -264,10 +295,19 @@ static const int case_change = 0x20;
 
 int ossl_tolower(int c)
 {
-    return ossl_isupper(c) ? c ^ case_change : c;
+    int a = ossl_toascii(c);
+
+    return ASCII_IS_UPPER(a) ? c ^ case_change : c;
 }
 
 int ossl_toupper(int c)
 {
-    return ossl_islower(c) ? c ^ case_change : c;
+    int a = ossl_toascii(c);
+
+    return ASCII_IS_LOWER(a) ? c ^ case_change : c;
+}
+
+int ossl_ascii_isdigit(int c)
+{
+    return ASCII_IS_DIGIT(c);
 }