| d9898ee8 |
1 | /* $Id: authsaslplain.c,v 1.3 2005/07/02 15:40:28 mrsam Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | ** Copyright 2000-2005 Double Precision, Inc. See COPYING for |
| 5 | ** distribution information. |
| 6 | */ |
| 7 | |
| 8 | #include "courier_auth_config.h" |
| 9 | #include "auth.h" |
| 10 | #include "random128/random128.h" |
| 11 | #include "courierauthsasl.h" |
| 12 | #include <stdlib.h> |
| 13 | #include <string.h> |
| 14 | #if HAVE_UNISTD_H |
| 15 | #include <unistd.h> |
| 16 | #endif |
| 17 | #include <ctype.h> |
| 18 | #include <stdio.h> |
| 19 | #include <errno.h> |
| 20 | |
| 21 | extern char *strdupdefdomain(const char *userid, const char *s1, |
| 22 | const char *s2, const char *s3); |
| 23 | |
| 24 | int authsasl_plain(const char *method, const char *initresponse, |
| 25 | char *(*getresp)(const char *, void *), |
| 26 | void *callback_arg, |
| 27 | char **authtype, |
| 28 | char **authdata) |
| 29 | { |
| 30 | char *uid; |
| 31 | char *pw; |
| 32 | char *p; |
| 33 | int n; |
| 34 | int i; |
| 35 | |
| 36 | if (initresponse) |
| 37 | { |
| 38 | p=malloc(strlen(initresponse)+1); |
| 39 | if (!p) |
| 40 | { |
| 41 | perror("malloc"); |
| 42 | return (AUTHSASL_ERROR); |
| 43 | } |
| 44 | strcpy(p, initresponse); |
| 45 | } |
| 46 | else |
| 47 | { |
| 48 | p=authsasl_tobase64("", -1); |
| 49 | if (!p) |
| 50 | { |
| 51 | perror("malloc"); |
| 52 | return (AUTHSASL_ERROR); |
| 53 | } |
| 54 | uid=getresp(p, callback_arg); |
| 55 | free(p); |
| 56 | p=uid; |
| 57 | if (!p) |
| 58 | { |
| 59 | perror("malloc"); |
| 60 | return (AUTHSASL_ERROR); |
| 61 | } |
| 62 | |
| 63 | if (*p == '*') |
| 64 | { |
| 65 | free(p); |
| 66 | return (AUTHSASL_ABORTED); |
| 67 | } |
| 68 | } |
| 69 | |
| 70 | if ((n=authsasl_frombase64(p)) < 0) |
| 71 | { |
| 72 | free(p); |
| 73 | return (AUTHSASL_ABORTED); |
| 74 | } |
| 75 | p[n]=0; |
| 76 | |
| 77 | uid=pw=0; |
| 78 | |
| 79 | for (i=0; i<n; i++) |
| 80 | { |
| 81 | if (p[i] == 0) |
| 82 | { |
| 83 | ++i; |
| 84 | for (uid=p+i; i<n; i++) |
| 85 | if (p[i] == 0) |
| 86 | { |
| 87 | pw=p+i+1; |
| 88 | break; |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | if (pw == 0) |
| 94 | { |
| 95 | free(p); |
| 96 | return (AUTHSASL_ABORTED); /* Bad message */ |
| 97 | } |
| 98 | |
| 99 | if ( (*authtype=malloc(sizeof(AUTHTYPE_LOGIN))) == 0) |
| 100 | { |
| 101 | free(p); |
| 102 | perror("malloc"); |
| 103 | return (AUTHSASL_ERROR); |
| 104 | } |
| 105 | |
| 106 | strcpy( *authtype, AUTHTYPE_LOGIN); |
| 107 | |
| 108 | if ( (*authdata=strdupdefdomain(uid, "\n", pw, "\n")) == 0) |
| 109 | { |
| 110 | free( *authtype ); |
| 111 | free(p); |
| 112 | perror("malloc"); |
| 113 | return (AUTHSASL_ERROR); |
| 114 | } |
| 115 | |
| 116 | free(p); |
| 117 | return (AUTHSASL_OK); |
| 118 | } |
HCoop / hcoop / debian / courier-authlib.git / blame