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rabbi |
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/* Mixmaster version 3 -- (C) 1999 Anonymizer Inc.
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Mixmaster may be redistributed and modified under certain conditions.
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This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF
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ANY KIND, either express or implied. See the file COPYRIGHT for
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details.
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Function prototypes
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rabbi |
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$Id: mix3.h,v 1.2 2001/11/06 23:41:58 rabbi Exp $ */
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rabbi |
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#ifndef _MIX3_H
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#define _MIX3_H
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#define COPYRIGHT "Copyright Anonymizer Inc."
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#include "config.h"
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#include "mix.h"
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#ifdef WIN32
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#ifndef USE_SOCK
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#define _WINSOCKAPI_ /* don't include winsock */
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#endif
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#include <windows.h>
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rabbi |
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#ifdef _MSC
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#define snprintf _snprintf
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rabbi |
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#endif
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#define DIRSEP '\\'
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#define DIRSEPSTR "\\"
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#else
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#define DIRSEP '/'
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#define DIRSEPSTR "/"
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#endif
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rabbi |
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#define NOT_IMPLEMENTED {printf("Function not implemented.\n");return -1;}
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#define SECONDSPERDAY 86400
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/* Dynamically allocated buffers */
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int buf_reset(BUFFER *buffer);
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int buf_clear(BUFFER *buffer);
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int buf_append(BUFFER *buffer, byte *mess, int len);
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int buf_cat(BUFFER *to, BUFFER *from);
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int buf_set(BUFFER *to, BUFFER *from);
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int buf_rest(BUFFER *to, BUFFER *from);
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int buf_appendrnd(BUFFER *to, int n);
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int buf_appendzero(BUFFER *to, int n);
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int buf_setc(BUFFER *buf, byte c);
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int buf_appendc(BUFFER *to, byte b);
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int buf_setrnd(BUFFER *b, int n);
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int buf_setf(BUFFER *buffer, char *fmt, ...);
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int buf_appendf(BUFFER *buffer, char *fmt, ...);
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int buf_sets(BUFFER *buf, char *s);
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int buf_appends(BUFFER *buffer, char *s);
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int buf_nl(BUFFER *buffer);
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int buf_pad(BUFFER *buffer, int size);
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int buf_prepare(BUFFER *buffer, int size);
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int buf_rewind(BUFFER *buffer);
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int buf_getc(BUFFER *buffer);
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void buf_ungetc(BUFFER *buffer);
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int buf_get(BUFFER *buffer, BUFFER *to, int n);
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int buf_getline(BUFFER *buffer, BUFFER *line);
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int buf_chop(BUFFER *b);
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void buf_move(BUFFER *dest, BUFFER *src);
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byte *buf_data(BUFFER *buffer);
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int buf_getheader(BUFFER *buffer, BUFFER *field, BUFFER *content);
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int buf_appendheader(BUFFER *buffer, BUFFER *field, BUFFER *contents);
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int buf_lookahead(BUFFER *buffer, BUFFER *line);
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int buf_eq(BUFFER *b1, BUFFER *b2);
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int buf_ieq(BUFFER *b1, BUFFER *b2);
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void buf_cut_out(BUFFER *buffer, BUFFER *cut_out, BUFFER *rest,
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int from, int len);
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int buf_appendl(BUFFER *b, long l);
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int buf_appendl_lo(BUFFER *b, long l);
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long buf_getl(BUFFER *b);
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long buf_getl_lo(BUFFER *b);
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int buf_appendi(BUFFER *b, int i);
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int buf_appendi_lo(BUFFER *b, int i);
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int buf_geti(BUFFER *b);
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int buf_geti_lo(BUFFER *b);
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/* String comparison */
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int strieq(const char *s1, const char *s2);
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int strileft(const char *string, const char *keyword);
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int striright(const char *string, const char *keyword);
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int strifind(const char *string, const char *keyword);
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int streq(const char *s1, const char *s2);
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int strfind(const char *string, const char *keyword);
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int strleft(const char *string, const char *keyword);
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void strcatn(char *dest, const char *src, int n);
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int bufleft(BUFFER *b, char *k);
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int buffind(BUFFER *b, char *k);
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int bufeq(BUFFER *b, char *k);
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int bufileft(BUFFER *b, char *k);
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int bufifind(BUFFER *b, char *k);
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int bufiright(BUFFER *b, char *k);
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int bufieq(BUFFER *b, char *k);
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/* Utility functions */
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void whoami(char *addr, char *defaultname);
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int sendinfofile(char *name, char *log, BUFFER *address, BUFFER *subject);
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int stats(BUFFER *out);
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int conf(BUFFER *out);
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void conf_premail(BUFFER *out);
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void rfc822_addr(BUFFER *line, BUFFER *list);
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void rfc822_name(BUFFER *line, BUFFER *name);
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void sendmail_begin(void); /* begin mail sending session */
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void sendmail_end(void); /* end mail sending session */
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int sendmail(BUFFER *message, char *from, BUFFER *address);
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int mixfile(char *path, const char *name);
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int file_to_out(const char *name);
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FILE *mix_openfile(const char *name, const char *a);
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FILE *openpipe(const char *prog);
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int closepipe(FILE *fp);
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typedef struct {
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char *name;
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FILE *f;
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} LOCK;
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int lock(FILE *f);
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int unlock(FILE *f);
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LOCK *lockfile(char *filename);
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int unlockfile(LOCK *lock);
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int filtermsg(BUFFER *msg);
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BUFFER *readdestblk( );
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int doblock(BUFFER *line, BUFFER *filter, int logandreset);
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int doallow(BUFFER *line, BUFFER *filter);
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int allowmessage(BUFFER *in);
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void errlog(int type, char *format,...);
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void clienterr(BUFFER *msgbuf, char *err);
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void logmail(char *mailbox, BUFFER *message);
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void mix_status(char *fmt,...);
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void mix_genericerror(void);
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#define ERRORMSG 1
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#define WARNING 2
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#define NOTICE 3
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#define LOG 4
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#define DEBUGINFO 5
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int decode(BUFFER *in, BUFFER *out);
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int encode(BUFFER *b, int linelen);
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void id_encode(byte id[], byte *s);
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void id_decode(byte *s, byte id[]);
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int decode_header(BUFFER *content);
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int boundary(BUFFER *line, BUFFER *mboundary);
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void get_parameter(BUFFER *content, char *attribute, BUFFER *value);
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int get_type(BUFFER *content, BUFFER *type, BUFFER *subtype);
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int mail_encode(BUFFER *in, int encoding);
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int hdr_encode(BUFFER *in, int n);
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int attachfile(BUFFER *message, BUFFER *filename);
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int pgpmime_sign(BUFFER *message, BUFFER *uid, BUFFER *pass, char *secring);
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int mime_attach(BUFFER *message, BUFFER *attachment, BUFFER *type);
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void mimedecode(BUFFER *msg);
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#define MIME_8BIT 1 /* transport is 8bit */
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#define MIME_7BIT 2 /* transport is 7bit */
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/* randomness */
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int rnd_bytes(byte *b, int n);
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byte rnd_byte(void);
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int rnd_number(int n);
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int rnd_add(byte *b, int l);
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int rnd_seed(void);
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void rnd_time(void);
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int rnd_init(void);
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int rnd_final(void);
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void rnd_error(void);
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#define RND_QUERY 0
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#define RND_NOTSEEDED -1
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#define RND_SEEDED 1
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#define RND_WILLSEED 2
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extern int rnd_state; /* flag for PRNG status */
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/* compression */
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int buf_compress(BUFFER *b);
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int buf_zip(BUFFER *out, BUFFER *in, int bits);
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int buf_uncompress(BUFFER *b);
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int buf_unzip(BUFFER *b, int type);
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/* crypto functions */
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int digest_md5(BUFFER *b, BUFFER *md);
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int isdigest_md5(BUFFER *b, BUFFER *md);
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int digestmem_md5(byte *b, int n, BUFFER *md);
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int digest_sha1(BUFFER *b, BUFFER *md);
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int digest_rmd160(BUFFER *b, BUFFER *md);
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int keymgt(int force);
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int key(BUFFER *b);
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int adminkey(BUFFER *b);
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#define ENCRYPT 1
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#define DECRYPT 0
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int buf_crypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
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#ifdef USE_IDEA
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int buf_ideacrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
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#endif
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int buf_bfcrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
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int buf_3descrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
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int buf_castcrypt(BUFFER *b, BUFFER *key, BUFFER *iv, int enc);
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int db_getseckey(byte keyid[], BUFFER *key);
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int db_getpubkey(byte keyid[], BUFFER *key);
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int pk_decrypt(BUFFER *encrypted, BUFFER *privkey);
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int pk_encrypt(BUFFER *plaintext, BUFFER *privkey);
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int check_seckey(BUFFER *buf, const byte id[]);
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int check_pubkey(BUFFER *buf, const byte id[]);
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int v2createkey(void);
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int seckeytopub(BUFFER *pub, BUFFER *sec, byte keyid[]);
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/* configuration, general remailer functions */
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int mix_configline(char *line);
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int mix_initialized(void);
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int mix_daily(void);
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/* message pool */
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#define INTERMEDIATE 0
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int pool_send(void);
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int pool_read(BUFFER *pool);
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int pool_add(BUFFER *msg, char *type);
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FILE *pool_new(char *type, char *tmpname, char *path);
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int mix_pool(BUFFER *msg, int type, long latent);
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int pool_packetfile(char *fname, BUFFER *mid, int packetnum);
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void pool_packetexp(void);
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int idexp(void);
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void pop3get(void);
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/* statistics */
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int stats_log(int);
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int stats_out(int);
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/* OpenPGP */
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int pgp_keymgt(int force);
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int pgp_armor(BUFFER *buf, int mode);
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int pgp_dearmor(BUFFER *buf, BUFFER *out);
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int pgp_pubkeycert(BUFFER *userid, char *keyring, BUFFER *pass,
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BUFFER *out, int remail);
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int pgp_signtxt(BUFFER *msg, BUFFER *uid, BUFFER *pass,
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char *secring, int remail);
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int pgp_isconventional(BUFFER *buf);
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int pgp_mailenc(int mode, BUFFER *msg, char *sigid,
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BUFFER *pass, char *pubring, char *secring);
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int pgp_signhashalgo(BUFFER *algo, BUFFER *userid, char *secring,
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BUFFER *pass);
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| 259 |
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/* menu */
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| 260 |
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int menu_initialized;
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void menu_main(void);
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| 262 |
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void menu_folder(char command, char *name);
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| 263 |
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int menu_getuserpass(BUFFER *p, int mode);
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| 265 |
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int user_pass(BUFFER *b);
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int user_confirmpass(BUFFER *b);
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void user_delpass(void);
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| 269 |
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/* remailer */
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| 270 |
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typedef struct {
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| 271 |
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char name[20];
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int version;
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char addr[128];
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| 274 |
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byte keyid[16];
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| 275 |
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struct {
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| 276 |
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unsigned int mix:1;
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| 277 |
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unsigned int compress:1;
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| 278 |
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| 279 |
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unsigned int cpunk:1;
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| 280 |
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unsigned int pgp:1;
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| 281 |
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unsigned int pgponly:1;
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| 282 |
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unsigned int latent:1;
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| 283 |
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unsigned int hash:1;
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| 284 |
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unsigned int ek:1;
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| 285 |
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unsigned int esub:1;
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| 286 |
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| 287 |
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unsigned int nym:1;
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| 288 |
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unsigned int newnym:1;
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| 289 |
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| 290 |
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unsigned int post:1;
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| 291 |
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unsigned int middle:1;
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| 292 |
|
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} flags;
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| 293 |
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struct rinfo {
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| 294 |
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int reliability;
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| 295 |
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int latency;
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| 296 |
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char history[13];
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| 297 |
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} info[2];
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| 298 |
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} REMAILER;
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| 299 |
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| 300 |
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#define CHAINMAX 421
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| 301 |
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#define MAXREM 100
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| 302 |
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int mix2_rlist(REMAILER remailer[]);
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| 303 |
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int t1_rlist(REMAILER remailer[]);
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int pgp_rlist(REMAILER remailer[], int n);
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| 305 |
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int chain_select(int hop[], char *chainstr, int maxrem, REMAILER *remailer,
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| 306 |
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int type, BUFFER *feedback);
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| 307 |
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int chain_rand(REMAILER *remailer, int maxrem,
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| 308 |
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int thischain[], int chainlen, int t);
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| 309 |
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int chain_randfinal(int type, REMAILER *remailer, int maxrem, int t);
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| 310 |
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| 311 |
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float chain_reliability(char *chain, int chaintype,
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| 312 |
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char *reliability_string);
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| 313 |
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int mix2_encrypt(int type, BUFFER *message, char *chainstr, int numcopies,
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| 314 |
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BUFFER *feedback);
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| 315 |
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int t1_encrypt(int type, BUFFER *message, char *chainstr, int latency,
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| 316 |
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BUFFER *ek, BUFFER *feedback);
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| 317 |
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| 318 |
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int t1_getreply(BUFFER *msg, BUFFER *ek, int len);
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| 319 |
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| 320 |
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int t1_decrypt(BUFFER *in);
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| 321 |
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int t2_decrypt(BUFFER *in);
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| 322 |
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| 323 |
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int mix2_decrypt(BUFFER *m);
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| 324 |
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int mix3_decrypt(BUFFER *m);
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| 325 |
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| 326 |
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/* type 2 */
|
| 327 |
|
|
#define MAGIC0 0
|
| 328 |
|
|
#define MAGIC1 3
|
| 329 |
|
|
|
| 330 |
|
|
int v3_magic(byte *b);
|
| 331 |
|
|
int v2body(BUFFER *body);
|
| 332 |
|
|
int v2body_setlen(BUFFER *body);
|
| 333 |
|
|
int v2partial(BUFFER *body, BUFFER *mid, int packet, int numpackets);
|
| 334 |
|
|
int v2_merge(BUFFER *mid);
|
| 335 |
|
|
int mix_armor(BUFFER *in);
|
| 336 |
|
|
int mix_dearmor(BUFFER *armored, BUFFER *bin);
|
| 337 |
|
|
|
| 338 |
|
|
/* type 1 */
|
| 339 |
|
|
#define HDRMARK "::"
|
| 340 |
|
|
#define EKMARK "**"
|
| 341 |
|
|
#define HASHMARK "##"
|
| 342 |
|
|
int isline(BUFFER *line, char *text);
|
| 343 |
|
|
|
| 344 |
|
|
/* nym database */
|
| 345 |
|
|
|
| 346 |
|
|
#define NYM_WAITING 0
|
| 347 |
|
|
#define NYM_OK 1
|
| 348 |
|
|
#define NYM_DELETED 2
|
| 349 |
|
|
#define NYM_ANY -1
|
| 350 |
|
|
|
| 351 |
|
|
int nymlist_read(BUFFER *n);
|
| 352 |
|
|
int nymlist_write(BUFFER *list);
|
| 353 |
|
|
int nymlist_get(BUFFER *list, char *nym, BUFFER *config, BUFFER *ek,
|
| 354 |
|
|
BUFFER *options, BUFFER *name, BUFFER *rblocks, int *status);
|
| 355 |
|
|
int nymlist_append(BUFFER *list, char *nym, BUFFER *config, BUFFER *options,
|
| 356 |
|
|
BUFFER *name, BUFFER *chains, BUFFER *eklist, int status);
|
| 357 |
|
|
int nymlist_del(BUFFER *list, char *nym);
|
| 358 |
|
|
int nymlist_getnym(char *nym, BUFFER *config, BUFFER *ek, BUFFER *opt,
|
| 359 |
|
|
BUFFER *name, BUFFER *rblocks);
|
| 360 |
|
|
int nymlist_getstatus(char *nym);
|
| 361 |
|
|
|
| 362 |
|
|
/* Visual C lacks dirent */
|
| 363 |
|
|
#ifdef _MSC
|
| 364 |
|
|
typedef HANDLE DIR;
|
| 365 |
|
|
|
| 366 |
|
|
struct dirent {
|
| 367 |
|
|
char d_name[PATHMAX];
|
| 368 |
|
|
};
|
| 369 |
|
|
|
| 370 |
|
|
DIR *opendir(const char *name);
|
| 371 |
|
|
struct dirent *readdir(DIR *dir);
|
| 372 |
|
|
int closedir(DIR *dir);
|
| 373 |
|
|
#endif
|
| 374 |
|
|
|
| 375 |
|
|
/* sockets */
|
| 376 |
|
|
#if defined(WIN32) && defined(USE_SOCK)
|
| 377 |
|
|
#include <winsock.h>
|
| 378 |
|
|
int sock_init(void);
|
| 379 |
|
|
void sock_exit(void);
|
| 380 |
|
|
|
| 381 |
|
|
#else
|
| 382 |
|
|
typedef int SOCKET;
|
| 383 |
|
|
|
| 384 |
|
|
#define INVALID_SOCKET -1
|
| 385 |
|
|
SOCKET opensocket(char *hostname, int port);
|
| 386 |
|
|
int closesocket(SOCKET s);
|
| 387 |
|
|
|
| 388 |
|
|
#endif
|
| 389 |
|
|
|
| 390 |
|
|
/* check for memory leaks */
|
| 391 |
|
|
#ifdef DEBUG
|
| 392 |
|
|
#define malloc mix3_malloc
|
| 393 |
|
|
#define free mix3_free
|
| 394 |
|
|
BUFFER *mix3_bufnew(char *, int, char*);
|
| 395 |
|
|
#if __GNUC__ >= 2
|
| 396 |
|
|
# define buf_new() mix3_bufnew(__FILE__, __LINE__, __PRETTY_FUNCTION__)
|
| 397 |
|
|
#else
|
| 398 |
|
|
# define buf_new() mix3_bufnew(__FILE__, __LINE__, "file")
|
| 399 |
|
|
#endif
|
| 400 |
|
|
#endif /* DEBUG */
|
| 401 |
|
|
|
| 402 |
|
|
#endif
|
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| 
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