60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
#ifndef ZOIDBERG_MAIL_ENCODING_H
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#define ZOIDBERG_MAIL_ENCODING_H
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/* mail encoding - mail de-/encoding functions (base64 and friends)
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**
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** Copyright 2001 Dr. Zoidberg Enterprises. All rights reserved.
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*/
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#include <size_t.h>
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#include <sys/types.h>
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#define B_MAIL_NULL_CONVERSION ((uint32) -1)
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#define B_MAIL_UTF8_CONVERSION ((uint32) -2)
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// For specifying the UTF-8 character set when converting to/from UTF-8.
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#define B_MAIL_US_ASCII_CONVERSION ((uint32) -3)
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// Plain 7 bit ASCII character set. A subset of UTF-8, but some mail software
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// specifies it so we need to recognize it.
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#define BASE64_LINELENGTH 76
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typedef enum {
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base64 = 'b',
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quoted_printable = 'q',
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seven_bit = '7',
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eight_bit = '8',
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uuencode = 'u', // Invalid to encode something using uuencode.
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null_encoding = 0, // For not changing existing settings.
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no_encoding = -1
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} mail_encoding;
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#ifdef __cplusplus
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extern "C" {
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#endif
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ssize_t encode(mail_encoding encoding, char *out, const char *in,
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off_t length, int headerMode);
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// boolean headerMode only matters for quoted_printable and base64.
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ssize_t decode(mail_encoding encoding, char *out, const char *in, off_t length,
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int underscore_is_space);
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// the value of underscore_is_space only matters for quoted_printable.
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ssize_t max_encoded_length(mail_encoding encoding, off_t cur_length);
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mail_encoding encoding_for_cte(const char *content_transfer_encoding);
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ssize_t encode_base64(char *out, const char *in, off_t length, int headerMode);
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ssize_t decode_base64(char *out, const char *in, off_t length);
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ssize_t encode_qp(char *out, const char *in, off_t length, int headerMode);
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ssize_t decode_qp(char *out, const char *in, off_t length, int underscore_is_space);
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//---underscore_is_space should be 1 if and only if you are decoding a header field
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ssize_t uu_decode(char *out, const char *in, off_t length);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZOIDBERG_MAIL_ENCODING_H */
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