| 1 | |
| 2 | /* |
| 3 | ** Copyright 1998 - 2005 Double Precision, Inc. See COPYING for |
| 4 | ** distribution information. |
| 5 | */ |
| 6 | |
| 7 | #include "courier_auth_config.h" |
| 8 | #include "auth.h" |
| 9 | #include "random128/random128.h" |
| 10 | #include "courierauthsasl.h" |
| 11 | #include <stdlib.h> |
| 12 | #include <string.h> |
| 13 | #if HAVE_UNISTD_H |
| 14 | #include <unistd.h> |
| 15 | #endif |
| 16 | #include <ctype.h> |
| 17 | #include <stdio.h> |
| 18 | #include <errno.h> |
| 19 | |
| 20 | extern char *strdupdefdomain(const char *userid, const char *s1, |
| 21 | const char *s2, const char *s3); |
| 22 | |
| 23 | int authsasl_login(const char *method, const char *initresponse, |
| 24 | char *(*getresp)(const char *, void *), |
| 25 | void *callback_arg, |
| 26 | char **authtype, |
| 27 | char **authdata) |
| 28 | { |
| 29 | char *uid; |
| 30 | char *pw; |
| 31 | char *p; |
| 32 | int n; |
| 33 | |
| 34 | if (initresponse) |
| 35 | { |
| 36 | uid=malloc(strlen(initresponse)+1); |
| 37 | if (!uid) |
| 38 | { |
| 39 | perror("malloc"); |
| 40 | return (AUTHSASL_ERROR); |
| 41 | } |
| 42 | strcpy(uid, initresponse); |
| 43 | } |
| 44 | else |
| 45 | { |
| 46 | p=authsasl_tobase64("Username:", -1); |
| 47 | if (!p) |
| 48 | { |
| 49 | perror("malloc"); |
| 50 | return (AUTHSASL_ERROR); |
| 51 | } |
| 52 | uid=getresp(p, callback_arg); |
| 53 | free(p); |
| 54 | if (!uid) |
| 55 | { |
| 56 | perror("malloc"); |
| 57 | return (AUTHSASL_ERROR); |
| 58 | } |
| 59 | |
| 60 | if (*uid == '*') |
| 61 | { |
| 62 | free(uid); |
| 63 | return (AUTHSASL_ABORTED); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | p=authsasl_tobase64("Password:", -1); |
| 68 | if (!p) |
| 69 | { |
| 70 | free(uid); |
| 71 | perror("malloc"); |
| 72 | return (AUTHSASL_ERROR); |
| 73 | } |
| 74 | |
| 75 | pw=getresp(p, callback_arg); |
| 76 | free(p); |
| 77 | if (!pw) |
| 78 | { |
| 79 | free(uid); |
| 80 | perror("malloc"); |
| 81 | return (AUTHSASL_ERROR); |
| 82 | } |
| 83 | |
| 84 | if (*pw == '*') |
| 85 | { |
| 86 | free(pw); |
| 87 | free(uid); |
| 88 | return (AUTHSASL_ABORTED); |
| 89 | } |
| 90 | |
| 91 | if ((n=authsasl_frombase64(uid)) < 0 || |
| 92 | (uid[n]=0, n=authsasl_frombase64(pw)) < 0) |
| 93 | { |
| 94 | free(uid); |
| 95 | free(pw); |
| 96 | return (AUTHSASL_ABORTED); |
| 97 | } |
| 98 | pw[n]=0; |
| 99 | |
| 100 | if ( (*authtype=malloc(sizeof(AUTHTYPE_LOGIN))) == 0) |
| 101 | { |
| 102 | free(uid); |
| 103 | free(pw); |
| 104 | perror("malloc"); |
| 105 | return (AUTHSASL_ERROR); |
| 106 | } |
| 107 | |
| 108 | strcpy( *authtype, AUTHTYPE_LOGIN); |
| 109 | |
| 110 | if ( (*authdata=strdupdefdomain(uid,"\n",pw,"\n")) == 0) |
| 111 | { |
| 112 | free( *authtype ); |
| 113 | free(uid); |
| 114 | free(pw); |
| 115 | perror("malloc"); |
| 116 | return (AUTHSASL_ERROR); |
| 117 | } |
| 118 | |
| 119 | free(uid); |
| 120 | free(pw); |
| 121 | |
| 122 | return (AUTHSASL_OK); |
| 123 | } |