Annotation of src/usr.bin/rdist/defs.h, Revision 1.24
1.24 ! guenther 1: /* $OpenBSD: defs.h,v 1.23 2014/07/10 20:35:35 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:
1.21 guenther 39: #include <sys/types.h>
40: #include <sys/param.h>
41: #include <sys/file.h>
42: #include <sys/time.h>
43: #include <sys/stat.h>
1.2 dm 44: #include <ctype.h>
1.1 deraadt 45: #include <errno.h>
1.21 guenther 46: #include <grp.h>
1.1 deraadt 47: #include <pwd.h>
1.12 millert 48: #include <regex.h>
1.21 guenther 49: #include <setjmp.h>
50: #include <signal.h>
51: #include <stdarg.h>
52: #include <stdio.h>
53: #include <stdlib.h>
54: #include <string.h>
1.2 dm 55: #include <syslog.h>
1.21 guenther 56: #include <unistd.h>
1.2 dm 57:
1.13 millert 58: #ifndef __GNUC__
59: # ifndef __attribute__
60: # define __attribute__(a)
61: # endif
62: #endif
63:
1.2 dm 64: #include "version.h"
65: #include "config-def.h"
66: #include "config.h"
67: #include "config-data.h"
1.1 deraadt 68: #include "pathnames.h"
1.2 dm 69: #include "types.h"
1.13 millert 70: #include "filesys.h"
1.2 dm 71:
1.1 deraadt 72:
73: /*
1.2 dm 74: * This belongs in os-svr4.h but many SVR4 OS's
75: * define SVR4 externel to Rdist so we put this
76: * check here.
1.1 deraadt 77: */
1.2 dm 78: #if defined(SVR4)
79: #define NEED_FCNTL_H
80: #define NEED_NETDB_H
81: #endif /* defined(SVR4) */
82:
83: #if defined(NEED_NETDB_H)
84: #include <netdb.h>
85: #endif /* NEED_NETDB_H */
86: #if defined(NEED_FCNTL_H)
87: #include <fcntl.h>
88: #endif /* NEED_FCNTL_H */
89: #if defined(NEED_LIMITS_H)
90: #include <limits.h>
91: #endif /* NEED_LIMITS_H */
1.1 deraadt 92:
1.2 dm 93: /* boolean truth */
94: #ifndef TRUE
95: #define TRUE 1
96: #endif
97: #ifndef FALSE
98: #define FALSE 0
99: #endif
100:
101: /* file modes */
102: #ifndef S_IXUSR
103: #define S_IXUSR 0000100
104: #endif
105: #ifndef S_IXGRP
106: #define S_IXGRP 0000010
107: #endif
108: #ifndef S_IXOTH
109: #define S_IXOTH 0000001
110: #endif
1.1 deraadt 111:
112: /* lexical definitions */
1.2 dm 113: #define QUOTECHAR 160 /* quote next character */
1.1 deraadt 114:
115: /* table sizes */
116: #define HASHSIZE 1021
1.2 dm 117: #define INMAX 3500
1.1 deraadt 118:
119: /* expand type definitions */
1.2 dm 120: #define E_VARS 0x1
121: #define E_SHELL 0x2
122: #define E_TILDE 0x4
123: #define E_ALL 0x7
1.1 deraadt 124:
125: /* actions for lookup() */
1.2 dm 126: #define LOOKUP 0
127: #define INSERT 1
128: #define REPLACE 2
129:
130: /* Bit flag test macros */
131: #define IS_ON(b,f) (b > 0 && (b & f))
132: #define IS_OFF(b,f) !(IS_ON(b,f))
133: #define FLAG_ON(b,f) b |= f
134: #define FLAG_OFF(b,f) b &= ~(f)
135:
136: #define ALLOC(x) (struct x *) xmalloc(sizeof(struct x))
137: #define A(s) ((s) ? s : "<null>")
138:
139: /*
140: * Environment variable names
141: */
142: #define E_FILES "FILES" /* List of files */
143: #define E_LOCFILE "FILE" /* Local Filename */
144: #define E_REMFILE "REMFILE" /* Remote Filename */
145: #define E_BASEFILE "BASEFILE" /* basename of Remote File */
146:
147: /*
148: * Suffix to use when saving files
149: */
150: #ifndef SAVE_SUFFIX
151: #define SAVE_SUFFIX ".OLD"
152: #endif
1.1 deraadt 153:
1.2 dm 154: /*
155: * Get system error string
156: */
157: #define SYSERR strerror(errno)
158:
159: #define COMMENT_CHAR '#' /* Config file comment char */
160: #define CNULL '\0' /* NULL character */
161:
162: /*
163: * These are the top level protocol commands.
164: */
165: #define C_NONE '=' /* No command - pass cleanly */
166: #define C_ERRMSG '\1' /* Log an error message */
167: #define C_FERRMSG '\2' /* Log a fatal error message */
168: #define C_NOTEMSG '\3' /* Log a note message */
169: #define C_LOGMSG '\4' /* Log a message */
170: #define C_ACK '\5' /* Acknowledge */
171: #define C_SETCONFIG 'c' /* Set configuration parameters */
172: #define C_DIRTARGET 'T' /* Set target directory name */
173: #define C_TARGET 't' /* Set target file name */
174: #define C_RECVREG 'R' /* Receive a regular file */
175: #define C_RECVDIR 'D' /* Receive a directory */
176: #define C_RECVSYMLINK 'K' /* Receive a symbolic link */
177: #define C_RECVHARDLINK 'k' /* Receive a hard link */
1.15 jmc 178: #define C_END 'E' /* Indicate end of receive/send */
1.2 dm 179: #define C_CLEAN 'C' /* Clean up */
180: #define C_QUERY 'Q' /* Query without checking */
181: #define C_SPECIAL 'S' /* Execute special command */
182: #define C_CMDSPECIAL 's' /* Execute cmd special command */
1.13 millert 183: #define C_CHMOG 'M' /* Chown,Chgrp,Chmod a file */
1.2 dm 184:
1.21 guenther 185: #define ack() (void) sendcmd(C_ACK, NULL)
186: #define err() (void) sendcmd(C_ERRMSG, NULL)
1.2 dm 187:
188: /*
189: * Session startup commands.
190: */
191: #define S_VERSION 'V' /* Version number */
192: #define S_REMOTEUSER 'R' /* Remote user name */
193: #define S_LOCALUSER 'L' /* Local user name */
194: #define S_END 'E' /* End of session startup commands */
1.1 deraadt 195:
1.2 dm 196: /*
197: * These are the commands for "set config".
198: */
199: #define SC_FREESPACE 's' /* Set min free space */
200: #define SC_FREEFILES 'f' /* Set min free files */
201: #define SC_HOSTNAME 'H' /* Set client hostname */
202: #define SC_LOGGING 'L' /* Set logging options */
1.13 millert 203: #define SC_DEFOWNER 'o' /* Set default owner */
204: #define SC_DEFGROUP 'g' /* Set default group */
1.2 dm 205:
206: /*
207: * Query commands
208: */
209: #define QC_ONNFS 'F' /* File exists & is on a NFS */
210: #define QC_ONRO 'O' /* File exists & is on a readonly fs */
211: #define QC_NO 'N' /* File does not exist */
212: #define QC_SYM 'l' /* File exists & is a symlink */
213: #define QC_YES 'Y' /* File does exist */
1.1 deraadt 214:
1.2 dm 215: /*
216: * Clean commands
217: */
218: #define CC_QUERY 'Q' /* Query if file should be rm'ed */
219: #define CC_END 'E' /* End of cleaning */
220: #define CC_YES 'Y' /* File doesn't exist - remove */
221: #define CC_NO 'N' /* File does exist - don't remove */
222:
223: /*
224: * Run Command commands
225: */
226: #define RC_FILE 'F' /* Name of a target file */
227: #define RC_COMMAND 'C' /* Command to run */
228:
229: /*
230: * Name list
231: */
232: struct namelist { /* for making lists of strings */
1.1 deraadt 233: char *n_name;
1.12 millert 234: regex_t *n_regex;
1.1 deraadt 235: struct namelist *n_next;
236: };
237:
1.2 dm 238: /*
239: * Sub command structure
240: */
1.1 deraadt 241: struct subcmd {
242: short sc_type; /* type - INSTALL,NOTIFY,EXCEPT,SPECIAL */
1.2 dm 243: opt_t sc_options;
1.1 deraadt 244: char *sc_name;
245: struct namelist *sc_args;
246: struct subcmd *sc_next;
247: };
248:
1.2 dm 249: /*
250: * Cmd flags
251: */
252: #define CMD_ASSIGNED 0x01 /* This entry has been assigned */
253: #define CMD_CONNFAILED 0x02 /* Connection failed */
254: #define CMD_NOCHKNFS 0x04 /* Disable NFS checks */
255:
256: /*
257: * General command structure
258: */
1.1 deraadt 259: struct cmd {
260: int c_type; /* type - ARROW,DCOLON */
1.2 dm 261: int c_flags; /* flags - CMD_USED,CMD_FAILED */
1.1 deraadt 262: char *c_name; /* hostname or time stamp file name */
263: char *c_label; /* label for partial update */
264: struct namelist *c_files;
265: struct subcmd *c_cmds;
266: struct cmd *c_next;
267: };
268:
1.2 dm 269: /*
270: * Hard link buffer information
271: */
1.1 deraadt 272: struct linkbuf {
273: ino_t inum;
274: dev_t devnum;
275: int count;
1.10 millert 276: char *pathname;
277: char *src;
278: char *target;
1.1 deraadt 279: struct linkbuf *nextp;
280: };
281:
1.2 dm 282: extern char *optarg; /* Option argument */
283: extern char *path_remsh; /* Remote shell command */
284: extern char host[]; /* Host name of master copy */
285: extern char *currenthost; /* Name of current host */
286: extern char *progname; /* Name of this program */
287: extern char **realargv; /* Real argv */
288: extern int optind; /* Option index into argv */
289: extern int debug; /* Debugging flag */
290: extern opt_t defoptions; /* Default install options */
291: extern int do_fork; /* Should we do fork()'ing */
1.13 millert 292: #ifndef __STDC__
1.2 dm 293: extern int errno; /* System error number */
1.13 millert 294: #endif
1.2 dm 295: extern int isserver; /* Acting as remote server */
296: extern int nerrs; /* Number of errors seen */
297: extern int nflag; /* NOP flag, don't execute commands */
298: extern opt_t options; /* Global options */
299: extern int proto_version; /* Protocol version number */
300: extern int realargc; /* Real argc */
301: extern int rem_r; /* Remote file descriptor, reading */
302: extern int rem_w; /* Remote file descriptor, writing */
303: extern int rtimeout; /* Response time out in seconds */
1.3 dm 304: extern int setjmp_ok; /* setjmp/longjmp flag */
1.22 guenther 305: extern uid_t userid; /* User ID of rdist user */
1.2 dm 306: extern jmp_buf finish_jmpbuf; /* Setjmp buffer for finish() */
307: extern struct linkbuf *ihead; /* list of files with more than one link */
308: extern struct passwd *pw; /* pointer to static area used by getpwent */
1.13 millert 309: extern char defowner[64]; /* Default owner */
310: extern char defgroup[64]; /* Default group */
311: extern volatile sig_atomic_t contimedout; /* Connection timed out */
1.2 dm 312: #ifdef USE_STATDB
313: extern int dostatdb;
314: extern int juststatdb;
315: #endif /* USE_STATDB */
316:
317: /*
1.13 millert 318: * Our own declarations.
1.2 dm 319: */
320:
1.13 millert 321: /* child.c */
322: void waitup(void);
323: int spawn(struct cmd *, struct cmd *);
324:
325: /* client.c */
326: char *remfilename(char *, char *, char *, char *, int);
327: int inlist(struct namelist *, char *);
328: void runcmdspecial(struct cmd *, opt_t);
329: int checkfilename(char *);
330: void freelinkinfo(struct linkbuf *);
331: void cleanup(int);
332: int install(char *, char *, int, int , opt_t);
333:
334: /* common.c */
1.23 guenther 335: ssize_t xwrite(int, void *, size_t);
1.13 millert 336: int init(int, char **, char **);
337: void finish(void);
338: void lostconn(void);
339: void coredump(void);
340: void sighandler(int);
1.21 guenther 341: int sendcmd(char, const char *, ...) __attribute__((__format__ (printf, 2, 3)));
1.13 millert 342: int remline(u_char *, int, int);
1.17 krw 343: ssize_t readrem(char *, ssize_t);
1.22 guenther 344: char *getusername(uid_t, char *, opt_t);
345: char *getgroupname(gid_t, char *, opt_t);
1.13 millert 346: int response(void);
347: char *exptilde(char *, char *, size_t);
348: int becomeuser(void);
349: int becomeroot(void);
350: int setfiletime(char *, time_t, time_t);
351: char *getversion(void);
352: void runcommand(char *);
1.20 guenther 353: void *xmalloc(size_t);
354: void *xrealloc(void *, size_t);
355: void *xcalloc(size_t, size_t);
1.13 millert 356: char *xstrdup(const char *);
357: char *xbasename(char *);
358: char *searchpath(char *);
359:
360: /* distopt.c */
361: DISTOPTINFO *getdistopt(char *, int *);
362: int parsedistopts(char *, opt_t *, int);
363: char *getdistoptlist(void);
364: char *getondistoptlist(opt_t);
365:
366: /* docmd.c */
367: void markassigned(struct cmd *, struct cmd *);
368: int okname(char *);
369: int except(char *);
370: void docmds(struct namelist *, int, char **);
371:
372: /* expand.c */
373: struct namelist *expand(struct namelist *, int);
374: u_char *xstrchr(u_char *, int);
375: void expstr(u_char *);
376: void expsh(u_char *);
377: void matchdir(char *);
378: int execbrc(u_char *, u_char *);
379: int match(char *, char *);
380: int amatch(char *, u_char *);
381:
382: /* filesys.c */
383: char *find_file(char *, struct stat *, int *);
384: mntent_t *findmnt(struct stat *, struct mntinfo *);
385: int isdupmnt(mntent_t *, struct mntinfo *);
386: void wakeup(int);
387: struct mntinfo *makemntinfo(struct mntinfo *);
388: mntent_t *getmntpt(char *, struct stat *, int *);
389: int is_nfs_mounted(char *, struct stat *, int *);
390: int is_ro_mounted(char *, struct stat *, int *);
391: int is_symlinked(char *, struct stat *, int *);
1.17 krw 392: int getfilesysinfo(char *, int64_t *, int64_t *);
1.13 millert 393:
394: /* gram.c */
395: int yylex(void);
396: int any(int, char *);
397: void insert(char *, struct namelist *, struct namelist *, struct subcmd *);
398: void append(char *, struct namelist *, char *, struct subcmd *);
399: void yyerror(char *);
400: struct namelist *makenl(char *);
401: struct subcmd *makesubcmd(int);
402: int yyparse(void);
403:
404: /* hasmntopt.c */
405: #ifdef NEED_HASMNTOPT
406: char *hasmntopt(struct mntent *, char *);
407: #endif
408:
409: /* isexec.c */
410: int isexec(char *, struct stat *);
411:
412: /* lookup.c */
413: void define(char *);
414: struct namelist *lookup(char *, int, struct namelist *);
415:
416: /* message.c */
417: void msgprusage(void);
418: void msgprconfig(void);
419: char *msgparseopts(char *, int);
420: void checkhostname(void);
1.19 guenther 421: void message(int, const char *, ...) __attribute__((format (printf, 2, 3)));
422: void debugmsg(int, const char *, ...) __attribute__((format (printf, 2, 3)));
423: void error(const char *, ...) __attribute__((format (printf, 1, 2)));
424: void fatalerr(const char *, ...) __attribute__((format (printf, 1, 2)));
1.13 millert 425: char *getnotifyfile(void);
426:
427: /* rdist.c */
428: FILE *opendist(char *);
429: void docmdargs(int, char *[]);
430: char *getnlstr(struct namelist *);
431:
432: /* rshrcmd.c */
433: int rshrcmd(char **, u_short, char *, char *, char *, int *);
434:
435: /* server.c */
436: void server(void);
437:
438: /* setargs.c */
439: void setargs_settup(int, char **, char **);
440: void _setproctitle(char *);
441: void setproctitle(const char *, ...);
442:
443: /* signal.c */
444: #ifdef NEED_SIGBLOCK
445: int sigblock(int);
446: #endif
447: #ifdef NEED_SIGMASK
448: int sigsetmask(int);
449: #endif
450:
451: /* strcasecmp.c */
452: #ifdef NEED_STRCASECMP
453: int strcasecmp(char *, char *);
454: int strncasecmp(char *, char *, int);
455: #endif
456:
457: /* strerror.c */
458: #ifdef NEED_STRERROR
459: char *strerror(int);
460: #endif
461:
462: /* strtol.c */
463: #ifdef NEED_STRTOL
464: long strtol(char *, char **, int);
465: #endif
466:
467: /* unvis.c */
468: #ifdef NEED_VIS
469: int unvis(char *, int, int *, int );
470: int strunvis(char *, const char *);
471: #endif
472:
473: /* vis.c */
474: #ifdef NEED_VIS
475: char *vis(char *, int, int, int );
476: int strvis(char *, const char *, int);
477: int strvisx(char *, const char *, size_t, int);
478: #endif
479:
480: /* vsnprintf.c */
481: #ifdef NEED_VSNPRINTF
482: int vsnprintf(char *, size_t, const char *, va_list);
483: int snprintf(char *, size_t, const char *, ...);
484: #endif
485:
486: /* zopen.c */
487: int zread(void *, char *, int);
488: int zwrite(void *, const char *, int);
489: int z_close(void *);
490: void *z_open(int, char *, int);
491:
492: #include <vis.h>
493: #define DECODE(a, b) strunvis(a, b)
494: #define ENCODE(a, b) strvis(a, b, VIS_WHITE)
1.2 dm 495:
496: #endif /* __DEFS_H__ */
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