crypto/ppccap.c: permit build with no-chacha and no-poly1305.

[openssl.git] / crypto / o_str.c

diff --git a/crypto/o_str.c b/crypto/o_str.c
index 4e2d096704f000f67e1705beadab6fd5e7880ca4..660226fcec5fbc3ab8f305de8328cbc2ab137e0d 100644 (file)
--- a/crypto/o_str.c
+++ b/crypto/o_str.c
@@ -1,4 +1,3 @@
-/* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */
 /*
  * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
  * 2003.
@@ -58,11 +57,14 @@
  */
 
 #include <ctype.h>
+#include <limits.h>
 #include <e_os.h>
-#include "o_str.h"
+#include <openssl/crypto.h>
+#include "internal/cryptlib.h"
+#include "internal/o_str.h"
 
 #if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \
-    !defined(OPENSSL_SYSNAME_WIN32) && !defined(OPENSSL_SYSNAME_WINCE) && \
+    !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_WINCE) && \
     !defined(NETWARE_CLIB)
 # include <strings.h>
 #endif
@@ -114,3 +116,194 @@ int OPENSSL_memcmp(const void *v1, const void *v2, size_t n)
 
     return ret;
 }
+
+char *CRYPTO_strdup(const char *str, const char* file, int line)
+{
+    char *ret;
+    size_t size;
+
+    if (str == NULL)
+        return NULL;
+    size = strlen(str) + 1;
+    ret = CRYPTO_malloc(size, file, line);
+    if (ret != NULL)
+        memcpy(ret, str, size);
+    return ret;
+}
+
+char *CRYPTO_strndup(const char *str, size_t s, const char* file, int line)
+{
+    size_t maxlen;
+    char *ret;
+
+    if (str == NULL)
+        return NULL;
+
+    maxlen = OPENSSL_strnlen(str, s);
+
+    ret = CRYPTO_malloc(maxlen + 1, file, line);
+    if (ret) {
+        memcpy(ret, str, maxlen);
+        ret[maxlen] = '\0';
+    }
+    return ret;
+}
+
+void *CRYPTO_memdup(const void *data, size_t siz, const char* file, int line)
+{
+    void *ret;
+
+    if (data == NULL || siz >= INT_MAX)
+        return NULL;
+
+    ret = CRYPTO_malloc(siz, file, line);
+    if (ret == NULL) {
+        CRYPTOerr(CRYPTO_F_CRYPTO_MEMDUP, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    return memcpy(ret, data, siz);
+}
+
+size_t OPENSSL_strnlen(const char *str, size_t maxlen)
+{
+    const char *p;
+
+    for (p = str; maxlen-- != 0 && *p != '\0'; ++p) ;
+
+    return p - str;
+}
+
+size_t OPENSSL_strlcpy(char *dst, const char *src, size_t size)
+{
+    size_t l = 0;
+    for (; size > 1 && *src; size--) {
+        *dst++ = *src++;
+        l++;
+    }
+    if (size)
+        *dst = '\0';
+    return l + strlen(src);
+}
+
+size_t OPENSSL_strlcat(char *dst, const char *src, size_t size)
+{
+    size_t l = 0;
+    for (; size > 0 && *dst; size--, dst++)
+        l++;
+    return l + OPENSSL_strlcpy(dst, src, size);
+}
+
+int OPENSSL_hexchar2int(unsigned char c)
+{
+#ifdef CHARSET_EBCDIC
+    c = os_toebcdic[c];
+#endif
+
+    switch (c) {
+    case '0':
+        return 0;
+    case '1':
+        return 1;
+    case '2':
+        return 2;
+    case '3':
+        return 3;
+    case '4':
+          return 4;
+    case '5':
+          return 5;
+    case '6':
+          return 6;
+    case '7':
+          return 7;
+    case '8':
+          return 8;
+    case '9':
+          return 9;
+    case 'a': case 'A':
+          return 0x0A;
+    case 'b': case 'B':
+          return 0x0B;
+    case 'c': case 'C':
+          return 0x0C;
+    case 'd': case 'D':
+          return 0x0D;
+    case 'e': case 'E':
+          return 0x0E;
+    case 'f': case 'F':
+          return 0x0F;
+    }
+    return -1;
+}
+
+/*
+ * Give a string of hex digits convert to a buffer
+ */
+unsigned char *OPENSSL_hexstr2buf(const char *str, long *len)
+{
+    unsigned char *hexbuf, *q;
+    unsigned char ch, cl;
+    int chi, cli;
+    const unsigned char *p;
+    size_t s;
+
+    s = strlen(str);
+    if ((hexbuf = OPENSSL_malloc(s >> 1)) == NULL) {
+        CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    for (p = (const unsigned char *)str, q = hexbuf; *p; ) {
+        ch = *p++;
+        if (ch == ':')
+            continue;
+        cl = *p++;
+        if (!cl) {
+            CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF,
+                      CRYPTO_R_ODD_NUMBER_OF_DIGITS);
+            OPENSSL_free(hexbuf);
+            return NULL;
+        }
+        cli = OPENSSL_hexchar2int(cl);
+        chi = OPENSSL_hexchar2int(ch);
+        if (cli < 0 || chi < 0) {
+            OPENSSL_free(hexbuf);
+            CRYPTOerr(CRYPTO_F_OPENSSL_HEXSTR2BUF, CRYPTO_R_ILLEGAL_HEX_DIGIT);
+            return NULL;
+        }
+        *q++ = (unsigned char)((chi << 4) | cli);
+    }
+
+    if (len)
+        *len = q - hexbuf;
+    return hexbuf;
+}
+
+/*
+ * Given a buffer of length 'len' return a OPENSSL_malloc'ed string with its
+ * hex representation @@@ (Contents of buffer are always kept in ASCII, also
+ * on EBCDIC machines)
+ */
+char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len)
+{
+    const static char hexdig[] = "0123456789ABCDEF";
+    char *tmp, *q;
+    const unsigned char *p;
+    int i;
+
+    if ((tmp = OPENSSL_malloc(len * 3 + 1)) == NULL) {
+        CRYPTOerr(CRYPTO_F_OPENSSL_BUF2HEXSTR, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+    q = tmp;
+    for (i = 0, p = buffer; i < len; i++, p++) {
+        *q++ = hexdig[(*p >> 4) & 0xf];
+        *q++ = hexdig[*p & 0xf];
+        *q++ = ':';
+    }
+    q[-1] = 0;
+#ifdef CHARSET_EBCDIC
+    ebcdic2ascii(tmp, tmp, q - tmp - 1);
+#endif
+
+    return tmp;
+}