1 /* $NetBSD: dsn_mask.c,v 1.2 2017/02/14 01:16:45 christos Exp $ */ 2 3 /*++ 4 /* NAME 5 /* dsn_mask 3 6 /* SUMMARY 7 /* DSN embedding in SMTP 8 /* SYNOPSIS 9 /* #include <dsn_mask.h> 10 /* 11 /* int dsn_notify_mask(str) 12 /* const char *str; 13 /* 14 /* const char *dsn_notify_str(mask) 15 /* int mask; 16 /* 17 /* int dsn_ret_code(str) 18 /* const char *str; 19 /* 20 /* const char *dsn_ret_str(code) 21 /* int mask; 22 /* DESCRIPTION 23 /* dsn_ret_code() converts the parameters of a MAIL FROM .. 24 /* RET option to internal form. 25 /* 26 /* dsn_ret_str() converts internal form to the representation 27 /* used in the MAIL FROM .. RET command. The result is in 28 /* stable and static memory. 29 /* 30 /* dsn_notify_mask() converts the parameters of a RCPT TO .. 31 /* NOTIFY option to internal form. 32 /* 33 /* dsn_notify_str() converts internal form to the representation 34 /* used in the RCPT TO .. NOTIFY command. The result is in 35 /* volatile memory and is clobbered whenever str_name_mask() 36 /* is called. 37 /* 38 /* Arguments: 39 /* .IP str 40 /* Information received with the MAIL FROM or RCPT TO command. 41 /* .IP mask 42 /* Internal representation. 43 /* DIAGNOSTICS 44 /* dsn_ret_code() and dsn_notify_mask() return 0 when the string 45 /* specifies an invalid request. 46 /* 47 /* dsn_ret_str() and dsn_notify_str() abort on failure. 48 /* LICENSE 49 /* .ad 50 /* .fi 51 /* The Secure Mailer license must be distributed with this software. 52 /* AUTHOR(S) 53 /* Wietse Venema 54 /* IBM T.J. Watson Research 55 /* P.O. Box 704 56 /* Yorktown Heights, NY 10598, USA 57 /*--*/ 58 59 60 /* System library. */ 61 62 #include <sys_defs.h> 63 64 /* Utility library. */ 65 66 #include <name_code.h> 67 #include <name_mask.h> 68 #include <msg.h> 69 70 /* Global library. */ 71 72 #include <dsn_mask.h> 73 74 /* Application-specific. */ 75 76 static const NAME_MASK dsn_notify_table[] = { 77 "NEVER", DSN_NOTIFY_NEVER, 78 "SUCCESS", DSN_NOTIFY_SUCCESS, 79 "FAILURE", DSN_NOTIFY_FAILURE, 80 "DELAY", DSN_NOTIFY_DELAY, 81 0, 0, 82 }; 83 84 static const NAME_CODE dsn_ret_table[] = { 85 "FULL", DSN_RET_FULL, 86 "HDRS", DSN_RET_HDRS, 87 0, 0, 88 }; 89 90 /* dsn_ret_code - string to mask */ 91 92 int dsn_ret_code(const char *str) 93 { 94 return (name_code(dsn_ret_table, NAME_CODE_FLAG_NONE, str)); 95 } 96 97 /* dsn_ret_str - mask to string */ 98 99 const char *dsn_ret_str(int code) 100 { 101 const char *cp; 102 103 if ((cp = str_name_code(dsn_ret_table, code)) == 0) 104 msg_panic("dsn_ret_str: unknown code %d", code); 105 return (cp); 106 } 107 108 /* dsn_notify_mask - string to mask */ 109 110 int dsn_notify_mask(const char *str) 111 { 112 int mask = name_mask_opt("DSN NOTIFY command", dsn_notify_table, 113 str, NAME_MASK_ANY_CASE | NAME_MASK_RETURN); 114 115 return (DSN_NOTIFY_OK(mask) ? mask : 0); 116 } 117 118 /* dsn_notify_str - mask to string */ 119 120 const char *dsn_notify_str(int mask) 121 { 122 return (str_name_mask_opt((VSTRING *) 0, "DSN NOTIFY command", 123 dsn_notify_table, mask, 124 NAME_MASK_FATAL | NAME_MASK_COMMA)); 125 } 126