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-rw-r--r--contrib/bind/lib/dst/support.c459
1 files changed, 0 insertions, 459 deletions
diff --git a/contrib/bind/lib/dst/support.c b/contrib/bind/lib/dst/support.c
deleted file mode 100644
index 6cc0bd1..0000000
--- a/contrib/bind/lib/dst/support.c
+++ /dev/null
@@ -1,459 +0,0 @@
-static const char rcsid[] = "$Header: /proj/cvs/isc/bind8/src/lib/dst/support.c,v 1.11 2001/05/29 05:48:16 marka Exp $";
-
-
-/*
- * Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
- *
- * Permission to use, copy modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND TRUSTED INFORMATION SYSTEMS
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
- * TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THE SOFTWARE.
- */
-
-#include "port_before.h"
-
-#include <stdio.h>
-#include <unistd.h>
-#include <memory.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <resolv.h>
-
-#include "dst_internal.h"
-
-#include "port_after.h"
-/*
- * dst_s_conv_bignum_u8_to_b64
- * This function converts binary data stored as a u_char[] to a
- * base-64 string. Leading zeroes are discarded. If a header is
- * supplied, it is prefixed to the input prior to encoding. The
- * output is \n\0 terminated (the \0 is not included in output length).
- * Parameters
- * out_buf binary data to convert
- * header character string to prefix to the output (label)
- * bin_data binary data
- * bin_len size of binary data
- * Return
- * -1 not enough space in output work area
- * 0 no output
- * >0 number of bytes written to output work area
- */
-
-int
-dst_s_conv_bignum_u8_to_b64(char *out_buf, const int out_len,
- const char *header, const u_char *bin_data,
- const int bin_len)
-{
- const u_char *bp = bin_data;
- char *op = out_buf;
- int lenh = 0, len64 = 0;
- int local_in_len = bin_len;
- int local_out_len = out_len;
-
- if (bin_data == NULL || bin_len <= 0) /* no data no */
- return (0);
-
- if (out_buf == NULL || out_len <= 0) /* no output_work area */
- return (-1);
-
- /* suppress leading \0 */
- for (; (*bp == 0x0) && (local_in_len > 0); local_in_len--)
- bp++;
-
- if (header) { /* add header to output string */
- lenh = strlen(header);
- if (lenh < out_len)
- memcpy(op, header, lenh);
- else
- return (-1);
- local_out_len -= lenh;
- op += lenh;
- }
- len64 = b64_ntop(bp, local_in_len, op, local_out_len - 2);
- if (len64 < 0)
- return (-1);
- op += len64++;
- *(op++) = '\n'; /* put CR in the output */
- *op = '\0'; /* make sure output is 0 terminated */
- return (lenh + len64);
-}
-
-
-/*
- * dst_s_verify_str()
- * Validate that the input string(*str) is at the head of the input
- * buffer(**buf). If so, move the buffer head pointer (*buf) to
- * the first byte of data following the string(*str).
- * Parameters
- * buf Input buffer.
- * str Input string.
- * Return
- * 0 *str is not the head of **buff
- * 1 *str is the head of **buff, *buf is is advanced to
- * the tail of **buf.
- */
-
-int
-dst_s_verify_str(const char **buf, const char *str)
-{
- int b, s;
- if (*buf == NULL) /* error checks */
- return (0);
- if (str == NULL || *str == '\0')
- return (1);
-
- b = strlen(*buf); /* get length of strings */
- s = strlen(str);
- if (s > b || strncmp(*buf, str, s)) /* check if same */
- return (0); /* not a match */
- (*buf) += s; /* advance pointer */
- return (1);
-}
-
-
-/*
- * dst_s_conv_bignum_b64_to_u8
- * Read a line of base-64 encoded string from the input buffer,
- * convert it to binary, and store it in an output area. The
- * input buffer is read until reaching a newline marker or the
- * end of the buffer. The binary data is stored in the last X
- * number of bytes of the output area where X is the size of the
- * binary output. If the operation is successful, the input buffer
- * pointer is advanced. This procedure does not do network to host
- * byte order conversion.
- * Parameters
- * buf Pointer to encoded input string. Pointer is updated if
- * function is successfull.
- * loc Output area.
- * loclen Size in bytes of output area.
- * Return
- * >0 Return = number of bytes of binary data stored in loc.
- * 0 Failure.
- */
-
-int
-dst_s_conv_bignum_b64_to_u8(const char **buf, u_char *loc, const int loclen)
-{
- int blen;
- char *bp;
- u_char bstr[RAW_KEY_SIZE];
-
- if (buf == NULL || *buf == NULL) { /* error checks */
- EREPORT(("dst_s_conv_bignum_b64_to_u8: null input buffer.\n"));
- return (0);
- }
- bp = strchr(*buf, '\n'); /* find length of input line */
- if (bp != NULL)
- *bp = (u_char) NULL;
-
- blen = b64_pton(*buf, bstr, sizeof(bstr));
- if (blen <= 0) {
- EREPORT(("dst_s_conv_bignum_b64_to_u8: decoded value is null.\n"));
- return (0);
- }
- else if (loclen < blen) {
- EREPORT(("dst_s_conv_bignum_b64_to_u8: decoded value is longer than output buffer.\n"));
- return (0);
- }
- if (bp)
- *buf = bp; /* advancing buffer past \n */
- memset(loc, 0, loclen - blen); /* clearing unused output area */
- memcpy(loc + loclen - blen, bstr, blen); /* write last blen bytes */
- return (blen);
-}
-
-
-/*
- * dst_s_calculate_bits
- * Given a binary number represented in a u_char[], determine
- * the number of significant bits used.
- * Parameters
- * str An input character string containing a binary number.
- * max_bits The maximum possible significant bits.
- * Return
- * N The number of significant bits in str.
- */
-
-int
-dst_s_calculate_bits(const u_char *str, const int max_bits)
-{
- const u_char *p = str;
- u_char i, j = 0x80;
- int bits;
- for (bits = max_bits; *p == 0x00 && bits > 0; p++)
- bits -= 8;
- for (i = *p; (i & j) != j; j >>= 1)
- bits--;
- return (bits);
-}
-
-
-/*
- * calculates a checksum used in dst for an id.
- * takes an array of bytes and a length.
- * returns a 16 bit checksum.
- */
-u_int16_t
-dst_s_id_calc(const u_char *key, const int keysize)
-{
- u_int32_t ac;
- const u_char *kp = key;
- int size = keysize;
-
- if (!key || (keysize <= 0))
- return (-1);
-
- for (ac = 0; size > 1; size -= 2, kp += 2)
- ac += ((*kp) << 8) + *(kp + 1);
-
- if (size > 0)
- ac += ((*kp) << 8);
- ac += (ac >> 16) & 0xffff;
-
- return (ac & 0xffff);
-}
-
-/*
- * dst_s_dns_key_id() Function to calculate DNSSEC footprint from KEY record
- * rdata
- * Input:
- * dns_key_rdata: the raw data in wire format
- * rdata_len: the size of the input data
- * Output:
- * the key footprint/id calculated from the key data
- */
-u_int16_t
-dst_s_dns_key_id(const u_char *dns_key_rdata, const int rdata_len)
-{
- if (!dns_key_rdata)
- return 0;
-
- /* compute id */
- if (dns_key_rdata[3] == KEY_RSA) /* Algorithm RSA */
- return dst_s_get_int16((const u_char *)
- &dns_key_rdata[rdata_len - 3]);
- else if (dns_key_rdata[3] == KEY_HMAC_MD5)
- /* compatibility */
- return 0;
- else
- /* compute a checksum on the key part of the key rr */
- return dst_s_id_calc(dns_key_rdata, rdata_len);
-}
-
-/*
- * dst_s_get_int16
- * This routine extracts a 16 bit integer from a two byte character
- * string. The character string is assumed to be in network byte
- * order and may be unaligned. The number returned is in host order.
- * Parameter
- * buf A two byte character string.
- * Return
- * The converted integer value.
- */
-
-u_int16_t
-dst_s_get_int16(const u_char *buf)
-{
- register u_int16_t a = 0;
- a = ((u_int16_t)(buf[0] << 8)) | ((u_int16_t)(buf[1]));
- return (a);
-}
-
-
-/*
- * dst_s_get_int32
- * This routine extracts a 32 bit integer from a four byte character
- * string. The character string is assumed to be in network byte
- * order and may be unaligned. The number returned is in host order.
- * Parameter
- * buf A four byte character string.
- * Return
- * The converted integer value.
- */
-
-u_int32_t
-dst_s_get_int32(const u_char *buf)
-{
- register u_int32_t a = 0;
- a = ((u_int32_t)(buf[0] << 24)) | ((u_int32_t)(buf[1] << 16)) |
- ((u_int32_t)(buf[2] << 8)) | ((u_int32_t)(buf[3]));
- return (a);
-}
-
-
-/*
- * dst_s_put_int16
- * Take a 16 bit integer and store the value in a two byte
- * character string. The integer is assumed to be in network
- * order and the string is returned in host order.
- *
- * Parameters
- * buf Storage for a two byte character string.
- * val 16 bit integer.
- */
-
-void
-dst_s_put_int16(u_int8_t *buf, const u_int16_t val)
-{
- buf[0] = (u_int8_t)(val >> 8);
- buf[1] = (u_int8_t)(val);
-}
-
-
-/*
- * dst_s_put_int32
- * Take a 32 bit integer and store the value in a four byte
- * character string. The integer is assumed to be in network
- * order and the string is returned in host order.
- *
- * Parameters
- * buf Storage for a four byte character string.
- * val 32 bit integer.
- */
-
-void
-dst_s_put_int32(u_int8_t *buf, const u_int32_t val)
-{
- buf[0] = (u_int8_t)(val >> 24);
- buf[1] = (u_int8_t)(val >> 16);
- buf[2] = (u_int8_t)(val >> 8);
- buf[3] = (u_int8_t)(val);
-}
-
-
-/*
- * dst_s_filename_length
- *
- * This function returns the number of bytes needed to hold the
- * filename for a key file. '/', '\' and ':' are not allowed.
- * form: K<keyname>+<alg>+<id>.<suffix>
- *
- * Returns 0 if the filename would contain either '\', '/' or ':'
- */
-size_t
-dst_s_filename_length(const char *name, const char *suffix)
-{
- if (name == NULL)
- return (0);
- if (strrchr(name, '\\'))
- return (0);
- if (strrchr(name, '/'))
- return (0);
- if (strrchr(name, ':'))
- return (0);
- if (suffix == NULL)
- return (0);
- if (strrchr(suffix, '\\'))
- return (0);
- if (strrchr(suffix, '/'))
- return (0);
- if (strrchr(suffix, ':'))
- return (0);
- return (1 + strlen(name) + 6 + strlen(suffix));
-}
-
-
-/*
- * dst_s_build_filename ()
- * Builds a key filename from the key name, it's id, and a
- * suffix. '\', '/' and ':' are not allowed. fA filename is of the
- * form: K<keyname><id>.<suffix>
- * form: K<keyname>+<alg>+<id>.<suffix>
- *
- * Returns -1 if the conversion fails:
- * if the filename would be too long for space allotted
- * if the filename would contain a '\', '/' or ':'
- * Returns 0 on success
- */
-
-int
-dst_s_build_filename(char *filename, const char *name, u_int16_t id,
- int alg, const char *suffix, size_t filename_length)
-{
- u_int32_t my_id;
- if (filename == NULL)
- return (-1);
- memset(filename, 0, filename_length);
- if (name == NULL)
- return (-1);
- if (suffix == NULL)
- return (-1);
- if (filename_length < 1 + strlen(name) + 4 + 6 + 1 + strlen(suffix))
- return (-1);
- my_id = id;
- sprintf(filename, "K%s+%03d+%05d.%s", name, alg, my_id,
- (const char *) suffix);
- if (strrchr(filename, '/'))
- return (-1);
- if (strrchr(filename, '\\'))
- return (-1);
- if (strrchr(filename, ':'))
- return (-1);
- return (0);
-}
-
-/*
- * dst_s_fopen ()
- * Open a file in the dst_path directory. If perm is specified, the
- * file is checked for existence first, and not opened if it exists.
- * Parameters
- * filename File to open
- * mode Mode to open the file (passed directly to fopen)
- * perm File permission, if creating a new file.
- * Returns
- * NULL Failure
- * NON-NULL (FILE *) of opened file.
- */
-FILE *
-dst_s_fopen(const char *filename, const char *mode, int perm)
-{
- FILE *fp;
- char pathname[PATH_MAX];
- size_t plen = sizeof(pathname);
-
- if (*dst_path != '\0') {
- strcpy(pathname, dst_path);
- plen -= strlen(pathname);
- }
- else
- pathname[0] = '\0';
-
- if (plen > strlen(filename))
- strncpy(&pathname[PATH_MAX - plen], filename, plen-1);
- else
- return (NULL);
-
- fp = fopen(pathname, mode);
- if (perm)
- chmod(pathname, perm);
- return (fp);
-}
-
-void
-dst_s_dump(const int mode, const u_char *data, const int size,
- const char *msg)
-{
- UNUSED(data);
-
- if (size > 0) {
-#ifdef LONG_TEST
- static u_char scratch[1000];
- int n ;
- n = b64_ntop(data, scratch, size, sizeof(scratch));
- printf("%s: %x %d %s\n", msg, mode, n, scratch);
-#else
- printf("%s,%x %d\n", msg, mode, size);
-#endif
- }
-}
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