Delete bundled copy of NSS and replace with README.

nss/lib/util/oidstring.c

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <string.h>
-#include "secitem.h"
-#include "secport.h"
-#include "secerr.h"
-
-/* if to->data is not NULL, and to->len is large enough to hold the result,
- * then the resultant OID will be copyed into to->data, and to->len will be
- * changed to show the actual OID length.
- * Otherwise, memory for the OID will be allocated (from the caller's 
- * PLArenaPool, if pool is non-NULL) and to->data will receive the address
- * of the allocated data, and to->len will receive the OID length.
- * The original value of to->data is not freed when a new buffer is allocated.
- * 
- * The input string may begin with "OID." and this still be ignored.
- * The length of the input string is given in len.  If len == 0, then 
- * len will be computed as strlen(from), meaning it must be NUL terminated.
- * It is an error if from == NULL, or if *from == '\0'.
- */
-
-SECStatus
-SEC_StringToOID(PLArenaPool *pool, SECItem *to, const char *from, PRUint32 len)
-{
-    PRUint32 decimal_numbers = 0;
-    PRUint32 result_bytes = 0;
-    SECStatus rv;
-    PRUint8 result[1024];
-
-    static const PRUint32 max_decimal = (0xffffffff / 10);
-    static const char OIDstring[] = {"OID."};
-
-    if (!from || !to) {
-        PORT_SetError(SEC_ERROR_INVALID_ARGS);
-        return SECFailure;
-    }
-    if (!len) {
-        len = PL_strlen(from);
-    }
-    if (len >= 4 && !PL_strncasecmp(from, OIDstring, 4)) {
-        from += 4; /* skip leading "OID." if present */
-        len  -= 4;
-    }
-    if (!len) {
-bad_data:
-        PORT_SetError(SEC_ERROR_BAD_DATA);
-        return SECFailure;
-    }
-    do {
-        PRUint32 decimal = 0;
-        while (len > 0 && isdigit(*from)) {
-            PRUint32 addend = (*from++ - '0');
-            --len;
-            if (decimal > max_decimal)  /* overflow */
-                goto bad_data;
-            decimal = (decimal * 10) + addend;
-            if (decimal < addend)       /* overflow */
-                goto bad_data;
-        }
-        if (len != 0 && *from != '.') {
-            goto bad_data;
-        }
-        if (decimal_numbers == 0) {
-            if (decimal > 2)
-                goto bad_data;
-            result[0] = decimal * 40;
-            result_bytes = 1;
-        } else if (decimal_numbers == 1) {
-            if (decimal > 40)
-                goto bad_data;
-            result[0] += decimal;
-        } else {
-            /* encode the decimal number,  */
-            PRUint8 * rp;
-            PRUint32 num_bytes = 0;
-            PRUint32 tmp = decimal;
-            while (tmp) {
-                num_bytes++;
-                tmp >>= 7;
-            }
-            if (!num_bytes )
-                ++num_bytes;  /* use one byte for a zero value */
-            if (num_bytes + result_bytes > sizeof result)
-                goto bad_data;
-            tmp = num_bytes;
-            rp = result + result_bytes - 1;
-            rp[tmp] = (PRUint8)(decimal & 0x7f);
-            decimal >>= 7;
-            while (--tmp > 0) {
-                rp[tmp] = (PRUint8)(decimal | 0x80);
-                decimal >>= 7;
-            }
-            result_bytes += num_bytes;
-        }
-        ++decimal_numbers;
-        if (len > 0) { /* skip trailing '.' */
-            ++from;
-            --len;
-        }
-    } while (len > 0);
-    /* now result contains result_bytes of data */
-    if (to->data && to->len >= result_bytes) {
-        PORT_Memcpy(to->data, result, to->len = result_bytes);
-        rv = SECSuccess;
-    } else {
-        SECItem result_item = {siBuffer, NULL, 0 };
-        result_item.data = result;
-        result_item.len  = result_bytes;
-        rv = SECITEM_CopyItem(pool, to, &result_item);
-    }
-    return rv;
-}