diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/parse_name.c')
| -rw-r--r-- | crypto/kerberosIV/lib/krb/parse_name.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/krb/parse_name.c b/crypto/kerberosIV/lib/krb/parse_name.c new file mode 100644 index 0000000..fcb3394 --- /dev/null +++ b/crypto/kerberosIV/lib/krb/parse_name.c @@ -0,0 +1,194 @@ +/* + * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "krb_locl.h" + +RCSID("$Id: parse_name.c,v 1.7 1999/12/02 16:58:43 joda Exp $"); + +int +krb_parse_name(const char *fullname, krb_principal *principal) +{ + const char *p; + char *ns, *np; + enum {n, i, r} pos = n; + int quote = 0; + ns = np = principal->name; + + principal->name[0] = 0; + principal->instance[0] = 0; + principal->realm[0] = 0; + + for(p = fullname; *p; p++){ + if(np - ns == ANAME_SZ - 1) /* XXX they have the same size */ + return KNAME_FMT; + if(quote){ + *np++ = *p; + quote = 0; + continue; + } + if(*p == '\\') + quote = 1; + else if(*p == '.' && pos == n){ + *np = 0; + ns = np = principal->instance; + pos = i; + }else if(*p == '@' && (pos == n || pos == i)){ + *np = 0; + ns = np = principal->realm; + pos = r; + }else + *np++ = *p; + } + *np = 0; + if(quote || principal->name[0] == 0) + return KNAME_FMT; + return KSUCCESS; +} + +int +kname_parse(char *np, char *ip, char *rp, char *fullname) +{ + krb_principal p; + int ret; + if((ret = krb_parse_name(fullname, &p)) == 0){ + strlcpy (np, p.name, ANAME_SZ); + strlcpy (ip, p.instance, INST_SZ); + if(p.realm[0]) + strlcpy (rp, p.realm, REALM_SZ); + } + return ret; +} +/* + * k_isname() returns 1 if the given name is a syntactically legitimate + * Kerberos name; returns 0 if it's not. + */ + +int +k_isname(char *s) +{ + char c; + int backslash = 0; + + if (!*s) + return 0; + if (strlen(s) > ANAME_SZ - 1) + return 0; + while ((c = *s++)) { + if (backslash) { + backslash = 0; + continue; + } + switch(c) { + case '\\': + backslash = 1; + break; + case '.': + return 0; + /* break; */ + case '@': + return 0; + /* break; */ + } + } + return 1; +} + + +/* + * k_isinst() returns 1 if the given name is a syntactically legitimate + * Kerberos instance; returns 0 if it's not. + */ + +int +k_isinst(char *s) +{ + char c; + int backslash = 0; + + if (strlen(s) > INST_SZ - 1) + return 0; + while ((c = *s++)) { + if (backslash) { + backslash = 0; + continue; + } + switch(c) { + case '\\': + backslash = 1; + break; + case '.': +#if INSTANCE_DOTS_OK + break; +#else /* INSTANCE_DOTS_OK */ + return 0; +#endif /* INSTANCE_DOTS_OK */ + /* break; */ + case '@': + return 0; + /* break; */ + } + } + return 1; +} + +/* + * k_isrealm() returns 1 if the given name is a syntactically legitimate + * Kerberos realm; returns 0 if it's not. + */ + +int +k_isrealm(char *s) +{ + char c; + int backslash = 0; + + if (!*s) + return 0; + if (strlen(s) > REALM_SZ - 1) + return 0; + while ((c = *s++)) { + if (backslash) { + backslash = 0; + continue; + } + switch(c) { + case '\\': + backslash = 1; + break; + case '@': + return 0; + /* break; */ + } + } + return 1; +} |
