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Annotation of src/usr.bin/rdist/defs.h, Revision 1.37

1.37    ! millert     1: /*     $OpenBSD: defs.h,v 1.36 2015/01/21 03:05:03 guenther Exp $      */
1.8       millert     2:
1.2       dm          3: #ifndef __DEFS_H__
                      4: #define __DEFS_H__
1.1       deraadt     5: /*
1.2       dm          6:  * Copyright (c) 1983 Regents of the University of California.
                      7:  * All rights reserved.
1.1       deraadt     8:  *
                      9:  * Redistribution and use in source and binary forms, with or without
                     10:  * modification, are permitted provided that the following conditions
                     11:  * are met:
                     12:  * 1. Redistributions of source code must retain the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer.
                     14:  * 2. Redistributions in binary form must reproduce the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer in the
                     16:  *    documentation and/or other materials provided with the distribution.
1.14      millert    17:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  */
                     33:
1.2       dm         34: /*
1.13      millert    35:  * $From: defs.h,v 1.6 2001/03/12 18:16:30 kim Exp $
1.2       dm         36:  * @(#)defs.h      5.2 (Berkeley) 3/20/86
                     37:  */
1.1       deraadt    38:
                     39: #include <pwd.h>
1.21      guenther   40: #include <setjmp.h>
                     41: #include <signal.h>
1.2       dm         42:
1.13      millert    43: #ifndef __GNUC__
                     44: # ifndef __attribute__
                     45: #  define __attribute__(a)
                     46: # endif
                     47: #endif
                     48:
1.2       dm         49: #include "version.h"
                     50: #include "config.h"
1.1       deraadt    51: #include "pathnames.h"
1.2       dm         52: #include "types.h"
                     53:
1.29      guenther   54: /*
                     55:  * Define the read and write values for the file descriptor array
                     56:  * used by pipe().
                     57:  */
                     58: #define PIPE_READ              0
                     59: #define PIPE_WRITE             1
1.1       deraadt    60:
1.2       dm         61:        /* boolean truth */
                     62: #ifndef TRUE
                     63: #define TRUE           1
                     64: #endif
                     65: #ifndef FALSE
                     66: #define FALSE          0
                     67: #endif
                     68:
                     69:        /* Bit flag test macros */
1.36      guenther   70: #define IS_ON(b,f)     (b & f)
1.2       dm         71: #define IS_OFF(b,f)    !(IS_ON(b,f))
                     72: #define FLAG_ON(b,f)   b |= f
                     73: #define FLAG_OFF(b,f)  b &= ~(f)
                     74:
                     75: /*
                     76:  * Environment variable names
                     77:  */
                     78: #define E_FILES                "FILES"                 /* List of files */
                     79: #define E_LOCFILE      "FILE"                  /* Local Filename  */
                     80: #define E_REMFILE      "REMFILE"               /* Remote Filename */
                     81: #define E_BASEFILE     "BASEFILE"              /* basename of Remote File */
                     82:
                     83: /*
                     84:  * Get system error string
                     85:  */
1.35      guenther   86: #define SYSERR         strerror(errno)
1.2       dm         87:
                     88: #define CNULL          '\0'            /* NULL character */
                     89:
                     90: /*
                     91:  * These are the top level protocol commands.
                     92:  */
                     93: #define C_NONE         '='             /* No command - pass cleanly */
                     94: #define C_ERRMSG       '\1'            /* Log an error message */
                     95: #define C_FERRMSG      '\2'            /* Log a fatal error message */
                     96: #define C_NOTEMSG      '\3'            /* Log a note message */
                     97: #define C_LOGMSG       '\4'            /* Log a message */
                     98: #define C_ACK          '\5'            /* Acknowledge */
                     99: #define C_SETCONFIG    'c'             /* Set configuration parameters */
                    100: #define C_DIRTARGET    'T'             /* Set target directory name */
                    101: #define C_TARGET       't'             /* Set target file name */
                    102: #define C_RECVREG      'R'             /* Receive a regular file */
                    103: #define C_RECVDIR      'D'             /* Receive a directory */
                    104: #define C_RECVSYMLINK  'K'             /* Receive a symbolic link */
                    105: #define C_RECVHARDLINK 'k'             /* Receive a hard link */
1.15      jmc       106: #define C_END          'E'             /* Indicate end of receive/send */
1.2       dm        107: #define C_CLEAN                'C'             /* Clean up */
                    108: #define C_QUERY                'Q'             /* Query without checking */
                    109: #define C_SPECIAL      'S'             /* Execute special command */
                    110: #define C_CMDSPECIAL   's'             /* Execute cmd special command */
1.13      millert   111: #define C_CHMOG                'M'             /* Chown,Chgrp,Chmod a file */
1.2       dm        112:
1.35      guenther  113: #define        ack()           (void) sendcmd(C_ACK, NULL)
                    114: #define        err()           (void) sendcmd(C_ERRMSG, NULL)
1.2       dm        115:
                    116: /*
                    117:  * Session startup commands.
                    118:  */
                    119: #define S_VERSION      'V'             /* Version number */
                    120: #define S_REMOTEUSER   'R'             /* Remote user name */
                    121: #define S_LOCALUSER    'L'             /* Local user name */
                    122: #define S_END          'E'             /* End of session startup commands */
1.1       deraadt   123:
1.2       dm        124: /*
                    125:  * These are the commands for "set config".
                    126:  */
                    127: #define SC_FREESPACE   's'             /* Set min free space */
                    128: #define SC_FREEFILES   'f'             /* Set min free files */
                    129: #define SC_HOSTNAME    'H'             /* Set client hostname */
                    130: #define SC_LOGGING     'L'             /* Set logging options */
1.13      millert   131: #define SC_DEFOWNER    'o'             /* Set default owner */
                    132: #define SC_DEFGROUP    'g'             /* Set default group */
1.2       dm        133:
                    134: /*
                    135:  * Query commands
                    136:  */
                    137: #define QC_ONNFS       'F'             /* File exists & is on a NFS */
                    138: #define QC_ONRO                'O'             /* File exists & is on a readonly fs */
                    139: #define QC_NO          'N'             /* File does not exist */
                    140: #define QC_SYM         'l'             /* File exists & is a symlink */
                    141: #define QC_YES         'Y'             /* File does exist */
1.1       deraadt   142:
1.2       dm        143: /*
                    144:  * Clean commands
                    145:  */
                    146: #define CC_QUERY       'Q'             /* Query if file should be rm'ed */
                    147: #define CC_END         'E'             /* End of cleaning */
                    148: #define CC_YES         'Y'             /* File doesn't exist - remove */
                    149: #define CC_NO          'N'             /* File does exist - don't remove */
                    150:
                    151: /*
                    152:  * Run Command commands
                    153:  */
                    154: #define RC_FILE                'F'             /* Name of a target file */
                    155: #define RC_COMMAND     'C'             /* Command to run */
                    156:
1.35      guenther  157:
                    158: extern char           *currenthost;    /* Name of current host */
                    159: extern char           *progname;       /* Name of this program */
                    160: extern char           *locuser;        /* Local User's name */
                    161: extern int             debug;          /* Debugging flag */
                    162: extern int             isserver;       /* Acting as remote server */
                    163: extern int             nerrs;          /* Number of errors seen */
                    164: extern opt_t           options;        /* Global options */
1.2       dm        165: extern int             rem_r;          /* Remote file descriptor, reading */
1.35      guenther  166: extern int             rem_w;          /* Remote file descriptor, writing */
                    167: extern int             rtimeout;       /* Response time out in seconds */
                    168: extern uid_t           userid;         /* User ID of rdist user */
1.37    ! millert   169: extern gid_t           groupid;        /* Group ID of rdist user */
1.35      guenther  170: extern jmp_buf         finish_jmpbuf;  /* Setjmp buffer for finish() */
1.13      millert   171: extern char defowner[64];              /* Default owner */
                    172: extern char defgroup[64];              /* Default group */
                    173: extern volatile sig_atomic_t contimedout; /* Connection timed out */
1.2       dm        174:
1.35      guenther  175:
1.2       dm        176: /*
1.35      guenther  177:  * Declarations for files shared between rdist and rdistd
1.2       dm        178:  */
                    179:
1.13      millert   180: /* common.c */
1.23      guenther  181: ssize_t xwrite(int, void *, size_t);
1.13      millert   182: int init(int, char **, char **);
                    183: void finish(void);
                    184: void lostconn(void);
                    185: void coredump(void);
                    186: void sighandler(int);
1.21      guenther  187: int sendcmd(char, const char *, ...) __attribute__((__format__ (printf, 2, 3)));
1.13      millert   188: int remline(u_char *, int, int);
1.17      krw       189: ssize_t readrem(char *, ssize_t);
1.22      guenther  190: char *getusername(uid_t, char *, opt_t);
                    191: char *getgroupname(gid_t, char *, opt_t);
1.13      millert   192: int response(void);
                    193: char *exptilde(char *, char *, size_t);
                    194: int becomeuser(void);
                    195: int becomeroot(void);
                    196: int setfiletime(char *, time_t, time_t);
                    197: char *getversion(void);
                    198: void runcommand(char *);
1.20      guenther  199: void *xmalloc(size_t);
                    200: void *xrealloc(void *, size_t);
                    201: void *xcalloc(size_t, size_t);
1.13      millert   202: char *xstrdup(const char *);
                    203: char *xbasename(char *);
                    204: char *searchpath(char *);
                    205:
                    206: /* message.c */
                    207: void msgprusage(void);
                    208: void msgprconfig(void);
                    209: char *msgparseopts(char *, int);
                    210: void checkhostname(void);
1.19      guenther  211: void message(int, const char *, ...) __attribute__((format (printf, 2, 3)));
                    212: void debugmsg(int, const char *, ...) __attribute__((format (printf, 2, 3)));
                    213: void error(const char *, ...) __attribute__((format (printf, 1, 2)));
                    214: void fatalerr(const char *, ...) __attribute__((format (printf, 1, 2)));
1.13      millert   215: char *getnotifyfile(void);
                    216:
1.35      guenther  217: /* client.c or server.c */
                    218: void cleanup(int);
1.13      millert   219:
                    220: #include <vis.h>
                    221: #define DECODE(a, b)   strunvis(a, b)
                    222: #define ENCODE(a, b)   strvis(a, b, VIS_WHITE)
1.2       dm        223:
                    224: #endif /* __DEFS_H__ */