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Diffstat (limited to 'contrib/bind9/lib/bind/dst/support.c')
| -rw-r--r-- | contrib/bind9/lib/bind/dst/support.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/contrib/bind9/lib/bind/dst/support.c b/contrib/bind9/lib/bind/dst/support.c deleted file mode 100644 index ec228d0..0000000 --- a/contrib/bind9/lib/bind/dst/support.c +++ /dev/null @@ -1,342 +0,0 @@ -static const char rcsid[] = "$Header: /proj/cvs/prod/bind9/lib/bind/dst/support.c,v 1.3.332.3 2005/10/11 00:25:09 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_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_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 (0xffffU); - - 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]; - - if (strlen(filename) + strlen(dst_path) >= sizeof(pathname)) - return (NULL); - - if (*dst_path != '\0') { - strcpy(pathname, dst_path); - strcat(pathname, filename); - } else - strcpy(pathname, filename); - - 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 - } -} - -/*! \file */ |
