/* Distributed Checksum Clearinghouse
 *
 * common definitions internal to client libraries and servers
 *
 * Copyright (c) 2005 by Rhyolite Software
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND RHYOLITE SOFTWARE DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL RHYOLITE SOFTWARE
 * BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 *
 * Rhyolite Software DCC 1.2.74-1.204 $Revision$
 */

#ifndef DCC_DEFS_H
#define DCC_DEFS_H

#define RHYOLITE_VERSION "1.2.74"
#define DCC_VERSION RHYOLITE_VERSION

#include "dcc_config.h"

/* work on WIN32 and any reasonable UNIX platform */
#ifdef UNIX
#include <stdarg.h>
#include <stdio.h>			/* for FreeBSD */
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else
#  include <time.h>
# endif
#endif
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#undef EX_OK				/* IRIX defines EX_OK in unistd.h */
#include <sysexits.h>
#include <limits.h>			/* for FreeBSD */
#include <netdb.h>
#include <netinet/in.h>
#include <sys/param.h>			/* for FreeBSD */
#include <sys/socket.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#else /* !UNIX or DCC_WIN32 */
#define STRICT
#define WIN32_LEAN_AND_MEAN
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <winerror.h>
#include <limits.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <io.h>
#include "sendmail-sysexits.h"

typedef unsigned int	u_int32_t;
typedef signed int	int32_t;
typedef unsigned short	u_int16_t;
#endif /* !UNIX or DCC_WIN32 */

/* use kludge file if asked */
#ifdef NEED_KLUDGE_H
#include "kludge.h"
#endif

#ifdef NEED_STRINGS_H
#include <strings.h>
#endif

#if !defined(DCC_HAVE_U_INT32_T)
#define u_int32_t uint32_t
#define u_int16_t uint16_t
#endif
#if !defined(DCC_HAVE_U_INT64_T)
#define u_int64_t uint64_t
#endif

#ifdef HAVE_GCC_ATTRIBUTES
#define UATTRIB __attribute__((unused))
#define PATTRIB(f,l) __attribute__((format (printf,f,l)))
#define NRATTRIB __attribute((__noreturn__))
#else
#define UATTRIB
#define PATTRIB(f,l)
#define NRATTRIB
#endif

#ifndef HAVE_GCC_INLINE
#define inline
#endif

typedef char DCC_PASSWD[32];

typedef char DCC_EMSG[120];

/* deal with ancient UNIX */
#ifndef STDOUT_FILENO
#define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
#define STDERR_FILENO 2
#endif

#ifdef UNIX
#ifndef MAP_FAILED
#define MAP_FAILED ((void *)-1)
#endif
#ifdef HAVE_OLD_MSYNC
#define MSYNC(addr,len,flags) msync((void *)(addr),(len))
#else
#define MSYNC(addr,len,flags) msync((void *)(addr),(len),(flags))
#endif

#ifndef FD_CLOEXEC
#define FD_CLOEXEC 1
#endif

#ifndef HAVE_DAEMON
#define daemon dcc_daemon
extern int daemon(int, int);
#endif

typedef int SOCKET;
typedef int HANDLE;
#define INVALID_HANDLE_VALUE (-1)
#define INVALID_SOCKET (-1)
#define SOCKET_ERROR (-1)
#define WSAAPI
#define closesocket close
#define ERROR_STR() ERROR_STR1(errno)
#define ERROR_STR1(e) strerror(e)
#define DCC_CONNECT_ERRORS() (errno == ECONNREFUSED		    \
			      || errno == EHOSTUNREACH		    \
			      || errno == EHOSTDOWN		    \
			      || errno == ENETDOWN		    \
			      || errno == ENETUNREACH)
#define DCC_SELECT_NERROR() (errno == EINTR || errno == EAGAIN)
/* EWOULDBLOCK and EAGAIN differ on HP-UX */
#define DCC_BLOCK_ERROR() (errno == EWOULDBLOCK || errno == EAGAIN)

typedef char DCC_PATH[PATH_MAX+1];

#else /* !UNIX or DCC_WIN32 */
extern void win32_init(void);

#undef errno
#define errno WSAGetLastError()
#define h_errno WSAGetLastError()
#define ERROR_STR() ERROR_STR1(errno)
#define ERROR_STR1(e) ws_strerror(e)
const char *ws_strerror(int);
#define DCC_CONNECT_ERRORS() ((errno) == WSAECONNREFUSED	\
			      || (errno) == WSAEHOSTUNREACH	\
			      || (errno) == WSAEHOSTDOWN	\
			      || (errno) == WSAENETDOWN	\
			      || (errno) == WSAENETUNREACH)
#define DCC_SELECT_NERROR() (errno == WSAEINTR)
#define DCC_BLOCK_ERROR() (errno == WSAEWOULDBLOCK || errno == WSAEINTR)
#define EADDRINUSE	WSAEADDRINUSE

typedef char DCC_PATH[MAX_PATH+1];

#define MAXHOSTNAMELEN   256

/* Win95 lacks snprintf() */
#define snprintf dcc_snprintf
extern int dcc_snprintf(char *, int, const char *, ...);
#define vsnprintf dcc_vsnprintf
extern int dcc_vsnprintf(char *, int, const char *, va_list);

extern char *optarg;
extern int optind, opterr, optopt;
extern int getopt(int, char * const [], const char *);

#define strcasecmp stricmp
#define strncasecmp strnicmp
extern int getpid(void);
#define usleep(usec) Sleep((usec)/1000)

#define LOG_ERR	    0
#define LOG_MAIL    0
#define LOG_NOTICE  0
#define LOG_PID	    0
extern void openlog(const char *, int, int);
extern void syslog(int, const char *, ...);

struct timezone {
    int     tz_minuteswest;		/* minutes west of Greenwich */
    int     tz_dsttime;			/* type of dst correction */
};
extern int gettimeofday(struct timeval *, struct timezone *);

/* FlushViewOfFile() on Win98 sometimes returns 0 with GetLastError()==0 */
#define MSYNC(addr,len,flags) (FlushViewOfFile(addr,0), 0)

#define R_OK	04
#define W_OK	02
#ifndef S_ISDIR
#define S_ISDIR(mode) (mode & _S_IFDIR)
#endif

extern u_char win32_lock(HANDLE, DWORD);
extern u_char win32_unlock(HANDLE);

extern void win32_unmap(HANDLE *, void *, const char *);
extern void *win32_map(DCC_EMSG, HANDLE *, const char *, int, int);
#endif /* !UNIX or DCC_WIN32 */


/* AIX is missing some prototypes or has them #ifdef'ed with strange switches */
#ifdef _AIX41
#include <sys/select.h>
typedef unsigned long long int uint64_t;
typedef unsigned int uint32_t;
typedef int int32_t;
typedef unsigned short uint16_t;

extern void openlog(const char *, int, int);
extern int snprintf(char *, int, const char *, ...);
extern int vsnprintf(char *, int, const char *, const char *, ...);
extern int seteuid(uid_t);
extern int flock(int, int);
#define	AF_LOCAL AF_UNIX
#endif /* _AIX41 */


/* 4.4BSD sockets */
#ifdef DCC_HAVE_SA_LEN
#define DCC_SU_LEN(s) ((s)->sa.sa_len)
#else
#define DCC_SU_LEN(s) (((s)->sa.sa_family == AF_INET)	\
		       ? sizeof((s)->ipv4) : sizeof((s)->ipv6))
#endif
#ifdef DCC_HAVE_SOCKLEN_T
#define DCC_SOCKLEN_T socklen_t
#else
#define DCC_SOCKLEN_T int
#endif
#if !defined(DCC_HAVE_AF_LOCAL) && !defined(AF_LOCAL)
#define AF_LOCAL AF_UNIX
#endif

/* these are needed even when IPV6 is available to handle old map file
 * formats in dcc_clnt.h */
struct dcc_in6_addr {
    u_int32_t dcc_s6_addr32[4];
};
struct dcc_sockaddr_in6 {
    u_char	sin6_len;
    u_char	sin6_family;
    u_int16_t	sin6_port;
    u_int32_t	sin6_flowinfo;
    struct dcc_in6_addr sin6_addr;
};
/* define in6_addr here after u_int32_t has been seen in sys/types.h */
#ifdef NO_IPV6
#undef in6_addr
#define in6_addr dcc_in6_addr		/* defend against lurking definitions */
#undef s6_addr32
#define s6_addr32 dcc_s6_addr32
#define sockaddr_in6 dcc_sockaddr_in6	/* defend against lurking definitions */
#endif /* NO_IPV6 */


#include "dcc_proto.h"


/* see if an address is in a CIDR block */
#define DCC_IN_BLOCK(a,b,m) ((((a).s6_addr32[3] & (m).s6_addr32[3])	\
			      == (b).s6_addr32[3])			\
			     && (((a).s6_addr32[2] & (m).s6_addr32[2])	\
				 == (b).s6_addr32[2])			\
			     && (((a).s6_addr32[1] & (m).s6_addr32[1])	\
				 == (b).s6_addr32[1])			\
			     && (((a).s6_addr32[0] & (m).s6_addr32[0])	\
				 == (b).s6_addr32[0]))


/* puzzle out something for s6_addr32 */
#if !defined(s6_addr32) && defined(CONF_S6_ADDR32)
#define s6_addr32 CONF_S6_ADDR32
#endif

#ifdef NO_AF_INET6
#define AF_INET6 24
#endif

#ifndef INET6_ADDRSTRLEN
#define INET6_ADDRSTRLEN 46
#endif
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN 16
#endif

#define MAXPORTNAMELEN	64

#ifndef INADDR_NONE
#define INADDR_NONE 0xffffffff
#endif

#define DCC_SU_SA_EQ(a,b) ((a)->sa.sa_family == (b)->sa.sa_family	\
			   && (((a)->sa.sa_family == AF_INET)		\
			       ? ((a)->ipv4.sin_addr.s_addr		\
				  == (b)->ipv4.sin_addr.s_addr)		\
			       : !memcmp(&(a)->ipv6.sin6_addr,		\
					 &(b)->ipv6.sin6_addr,		\
					 sizeof((a)->ipv6.sin6_addr))))

#define DCC_SU_PORT(su) ((su)->sa.sa_family == AF_INET			\
			 ? &(su)->ipv4.sin_port				\
			 : &(su)->ipv6.sin6_port)

#define DCC_IN6_ADDR_V4MAPPED(ap) ((ap)->s6_addr32[0] == 0		\
				   && (ap)->s6_addr32[1] == 0		\
				   && (ap)->s6_addr32[2] == ntohl(0x0000ffff))

#define DCC_IN6_ADDR_V4COMPAT(ap) ((ap)->s6_addr32[0] == 0		\
				   && (ap)->s6_addr32[1] == 0		\
				   && (ap)->s6_addr32[2] == 0		\
				   && (ap)->s6_addr32[3] == 0		\
				   && (ap)->s6_addr32[3] == ntohl(1))



/* printf patterns for 64-bit values */
#ifdef HAVE_64BIT_LONG
#define L_HPAT	    "%#lx"
#define L_H8PAT	    "%8lx"
#define L_DPAT	    "%ld"
#define L_D9PAT	    "%9ld"
#else
#define L_HPAT	    "%#llx"
#define L_H8PAT	    "%8llx"
#define L_DPAT	    "%lld"
#define L_D9PAT	    "%9lld"
#endif

/* printf pattern for size_t and off_t */
#ifdef HAVE_BIG_FILES
#define OFF_HPAT    L_DPAT
#define OFF_DPAT    L_DPAT
#else
#define OFF_HPAT    "%#lx"
#define OFF_DPAT    "%ld"
#endif

#define DIM(_a)	    ((int)(sizeof(_a) / sizeof((_a)[0])))
#define LAST(_a)    (&(_a)[DIM(_a)-1])
/* abbreviation to silence common compiler warnings */
#define ISZ(_s)	    ((int)sizeof(_s))

#ifdef HAVE_STRLCPY
#define STRLIMCPY(d,lim,s) strlcpy(d,s,lim)
#else
#define STRLIMCPY(d,lim,s) ((d)[(lim)-1] = '\0', strncpy(d,s,(lim)-1))
#endif
#define BUFCPY(d,s) STRLIMCPY(d,sizeof(d),s)

#define STRZ(_s)    ((int)sizeof(_s)-1)
#define CSTRCMP(b,_s) strncasecmp(b, _s, STRZ(_s))


#ifndef HAVE___PROGNAME
#define __progname dcc_progname
#endif

#undef max
#define max(a,b) ((a) > (b) ? (a) : (b))
#undef min
#define min(a,b) ((a) < (b) ? (a) : (b))

/* Is it time or has the local clock been changed?
 *	Is the clock after the target date or earlier than the original date? */
#define DCC_IS_TIME(now,tgt,lim) ((now) >= (tgt) || (now)+(lim) < (tgt))


#define DCC_WHITESPACE " \t\n\r"

/* ctype() is now a slow mess that does not give constant results on all
 * systems */
#define DCC_IS_WHITE(c) ((c) == ' ' || (c) == '\t' || (c) == '\r' || (c)== '\n')
#define DCC_IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
#define DCC_IS_LOWER(c) ((c) >= 'a' && (c) <= 'z')
#define DCC_TO_LOWER(c) (DCC_IS_UPPER(c) ? ((c) + ('a'-'A')) : (c))
#define DCC_TO_UPPER(c) (DCC_IS_LOWER(c) ? ((c) - ('a'-'A')) : (c))

typedef union {
    struct sockaddr sa;
    struct sockaddr_in ipv4;
    struct sockaddr_in6 ipv6;
} DCC_SOCKU;

#ifdef HAVE_RSENDTO
extern int Rconnect(int, const struct sockaddr *, socklen_t);
extern ssize_t Rsend(int, const void *, size_t, int);
extern ssize_t Rsendto(int, const void *, size_t, int,
		       const struct sockaddr *, size_t);
extern ssize_t Rrecv(int, void *, size_t, int);
extern ssize_t Rrecvfrom(int, void *, size_t, int,
			 struct sockaddr *, socklen_t *);
extern struct hostent *Rgethostbyname(const char *);
#else
#define Rconnect    connect
#define Rsend	    send
#define Rsendto	    sendto
#define Rrecv	    recv
#define Rrecvfrom   recvfrom
#define Rgethostbyname gethostbyname
#endif

/* ensure that missing parts of the BIND resolver library turns it all
 * off, even on Windows systems.
 * Some RedHat systems have res_init() but not res_query() */
#if !defined(HAVE_RESOLV_H) || !defined(HAVE_ARPA_NAMESER_H)
#undef HAVE_RESOLV_H
#undef HAVE_ARPA_NAMESER_H
#undef HAVE__RES
#undef HAVE_RES_INIT
#endif
#if !defined(HAVE_RES_QUERY) || !defined(HAVE_DN_EXPAND)
#undef MX_DNSBL
#endif
#if !defined(HAVE__RES) || !defined(HAVE_RES_INIT) || !defined(HAVE_HSTRERROR)
#undef HAVE__RES
#undef HAVE_RES_INIT
#undef MX_DNSBL
#endif

/* use very old fashioned gethostbyname() if we are not doing any IPv6 */
#ifdef NO_IPV6
#undef HAVE_GETIPNODEBYNAME
#undef HAVE_GETADDRINFO
#endif

/* prefer old fashioned getipnodebyname() for IPv6 resolution */
#if !defined(HAVE_GETIPNODEBYNAME) || !defined(HAVE_FREEHOSTENT)
#undef HAVE_GETIPNODEBYNAME
#undef HAVE_GETIPNODEBYADDR
#undef HAVE_FREEHOSTENT
#endif
#ifdef HAVE_GETIPNODEBYNAME
#define USE_GETIPNODEBYNAME
#undef USE_GETADDRINFO
#endif

#if !defined(HAVE_GETADDRINFO) || !defined(HAVE_FREEADDRINFO) || !defined(HAVE_GAI_STRERROR)
#undef HAVE_GETADDRINFO
#undef HAVE_GETNAMEINFO
#undef HAVE_GAI_STRERROR
#undef HAVE_FREEADDRINFO
#endif
/* Linux does not have getipnodebyname() */
#if defined(HAVE_GETADDRINFO) && !defined(HAVE_GETIPNODEBYNAME)
#define USE_GETADDRINFO
#endif

#ifdef USE_GETADDRINFO
#define DCC_HSTRERROR(e) gai_strerror(e)
#else
#ifdef HAVE_HSTRERROR
#define DCC_HSTRERROR(e) hstrerror(e)
#else
#define DCC_HSTRERROR dcc_hstrerror
#endif
#endif


#ifndef HAVE_POLL
#undef USE_POLL
#endif

/* Some systems including Linux with gcc 3.4.2 on AMD 64 processes
 *	do not allow two uses of a va_list but require va_copy()
 * Other systems do not have any notion of va_copy() */
#ifdef USE_VA_COPY
#define COPY_DCC_ARGS2() va_list DCC_ARGS2; va_copy(DCC_ARGS2, args)
#define END_DCC_ARGS2() va_end(DCC_ARGS2)
#else
#define COPY_DCC_ARGS2()
#define DCC_ARGS2 args
#define END_DCC_ARGS2()
#endif

extern int dcc_ex_code;			/* not thread safe */
extern void dcc_pemsg(int, DCC_EMSG, const char *, ...) PATTRIB(3,4);
extern void dcc_vpemsg(int, DCC_EMSG, const char *, va_list);

#define DCC_MAX_HDR_LINE    78		/* by RFC 2822 */
#define DCC_MAX_XHDR_LEN    240		/* largest possible X-DCC header */
typedef struct {
    u_int	start_len;		/* length of start up to ':' */
    u_int	used;			/* bytes of buffer used */
    int		col;			/* current column */
    char	buf[DCC_MAX_XHDR_LEN];
} DCC_HEADER_BUF;

#define DCC_MAP_NM_DEF	    "map"

extern void dcc_sign(const char *, int, void *, u_int);
extern u_char dcc_ck_signature(const char *, int, const void *, u_int);

extern DCC_PATH dcc_homedir;
extern DCC_PATH dcc_path_buf;
#define DCC_NM2PATH(nm) dcc_fnm2path(dcc_path_buf, nm)
extern const char *dcc_fnm2path(DCC_PATH, const char *);
extern u_char dcc_cdhome(DCC_EMSG, const char *);

u_char dcc_get_priv_home(const char *);
extern void dcc_rel_priv(void);
extern void dcc_init_priv(void);
extern u_char dcc_ck_private(DCC_EMSG, struct stat *, const char *, int);
extern int dcc_lock_open(DCC_EMSG, const char *, int, u_char, int, u_char *);
# define DCC_LOCK_OPEN_WAIT	0	/* wait to get lock */
# define DCC_LOCK_OPEN_NOWAIT	1
# define DCC_LOCK_OPEN_EXT	2	/* already locked */
extern u_char dcc_unlock_fd(DCC_EMSG, int, int, const char *, const char *);
extern u_char dcc_shlock_fd(DCC_EMSG, int, int, const char *, const char *);
extern u_char dcc_exlock_fd(DCC_EMSG, int, int, const char *, const char *);
#define DCC_LOCK_ALL_FILE   (-1)
extern void dcc_mmap_utime(const char *, u_char);

extern char dcc_have_logdir;
extern DCC_PATH dcc_logdir;
#define DCC_MKSTEMP_LEN 6		/* characters added by dcc_mkstemp() */
extern int dcc_mkstemp(DCC_EMSG, char *, int,
		       const char *, const char *, u_char, int, int);
#define	DCC_TMP_LOG_PAT "/tmp."
#define	DCC_FIN_LOG_PAT "/msg."
extern int dcc_logdir_ck(DCC_EMSG, const char *, int *);
extern u_char dcc_log_init(DCC_EMSG, const char *);
extern int dcc_log_open(DCC_EMSG, char *, int);
extern u_char dcc_log_keep(DCC_EMSG, char *, int);
#define DCC_LOG_DATE_PAT "VERSION: 3\nDATE: %s"
#define DCC_LOG_DATE_FMT "%x %X %Z"
#define DCC_LOG_MSG_SEP "\n### end of message body ########################\n"
#define DCC_LOG_TRN_MSG0 "### log truncated ######################"
#define DCC_LOG_TRN_MSG "\n"DCC_LOG_TRN_MSG0"\n"
#define DCC_LOG_TRN_MSG_CR "\r\n"DCC_LOG_TRN_MSG0"\r\n"



extern const struct tm *dcc_localtime(time_t, struct tm *);
#ifndef HAVE_LOCALTIME_R
extern void dcc_localtime_lock(void);
extern void dcc_localtime_unlock(void);
#endif

extern int dcc_get_secs(char *, char **, int, int, int);
#define DCC_MAX_SECS 0x7fffffff
extern u_int dcc_get_port(DCC_EMSG, const char *, u_int, const char *, int);
#define DCC_GET_PORT_INVALID    0x10000
extern u_char dcc_host_locked;
#define MAX_DCC_HOSTADDRS 20
extern DCC_SOCKU dcc_hostaddrs[MAX_DCC_HOSTADDRS];
extern DCC_SOCKU *dcc_hostaddrs_end;
extern void dcc_host_lock(void);
extern void dcc_host_unlock(void);
extern u_char dcc_get_host(const char *, u_char, int *);
extern u_char dcc_get_host_SOCKS(const char *, u_char, int *);
extern const char *dcc_hstrerror(int);
extern DCC_SOCKU *dcc_mk_su(DCC_SOCKU *, int, const void *, u_short);
extern u_char dcc_str2ip(DCC_SOCKU *, const char *);
extern void dcc_bits2mask(struct in6_addr *, int);
extern int dcc_str2cidr(DCC_EMSG, struct in6_addr *, struct in6_addr *,
			const char *, const char *, int);
extern u_char dcc_udp_bind(DCC_EMSG, SOCKET *, const DCC_SOCKU *, int *);
extern DCC_CLNT_ID dcc_get_id(DCC_EMSG, const char *, const char *, int);
extern const char *dcc_get_srvr_id(DCC_EMSG, DCC_SRVR_ID *,
				   const char *, const char *,
				   const char *, int);
extern const char *dcc_parse_word(DCC_EMSG, char *, int,
				  const char *, const char *,
				  const char *, int);
extern u_char dcc_ck_word_comma(char **, const char *);
extern const char *fnm_lineno(const char *, int);

extern void dcc_ipv4toipv6(struct in6_addr *, const struct in_addr);
extern u_char dcc_ipv6toipv4(struct in_addr *, const struct in6_addr *);

extern const char *dcc_su2str(const DCC_SOCKU *);
extern const char *dcc_su2str_opt(const DCC_SOCKU *, u_int16_t, char);
extern void dcc_su2name(char *, int, const DCC_SOCKU *);
#if !defined(HAVE_INET_NTOP) || defined(NO_IPV6)
#define DCC_INET_NTOP dcc_inet_ntop
extern const char *DCC_INET_NTOP(int, const void *, char *, size_t);
#else
#define DCC_INET_NTOP inet_ntop
#endif

extern u_char dcc_no_syslog;
extern int dcc_error_priority, dcc_trace_priority;
extern u_char dcc_parse_log_opt(const char *);
extern void dcc_syslog_init(u_char, const char *, const char *);
extern DCC_PATH dcc_progname;
extern void dcc_vfatal_msg(const char *, va_list);
extern void dcc_verror_msg(const char *, va_list);
extern void dcc_error_msg(const char *, ...) PATTRIB(1,2);
extern void dcc_vtrace_msg(const char *, va_list);
extern void dcc_trace_msg(const char *, ...) PATTRIB(1,2);
#ifndef HAVE_VSYSLOG
#define vsyslog dcc_vsyslog
extern void vsyslog(int, const char *, va_list);
#endif

extern void NRATTRIB dcc_logbad(int, const char *, ...) PATTRIB(2,3);

extern char *dcc_ck2str(char *, u_int, DCC_CK_TYPES, const DCC_SUM);
#define DCC_CK2STR_LEN (sizeof(DCC_SUM)*2+sizeof(DCC_SUM)/4+1)
extern const char *dcc_ck2str_err(DCC_CK_TYPES, const DCC_SUM);
extern char *dcc_cnt2str(char *, u_int, DCC_TGTS, u_char);
extern char *dcc_type2str(char *, u_int, DCC_CK_TYPES, const char *, u_char);
extern const char *dcc_type2str_err(DCC_CK_TYPES, const char *, u_char);
extern DCC_CK_TYPES dcc_str2type(const char *);
extern DCC_TGTS dcc_str2cnt(const char *);

extern const char *dcc_op2str(DCC_OPS, DCC_AOPS, u_int32_t);
extern const char *dcc_req_op2str(const DCC_ADMN_REQ *);
extern const char *dcc_hdr_op2str(const DCC_HDR *);


#endif /* DCC_DEFS_H */