# 2.11BSD#431 - /usr/src/new/rcs/src/snoop.c

##### Functions

    main              X

##### Variables

    lockfile          X
    lockfname         X

##### Macros

    MAXTRIES          X
    fflsbuf           X

       1: /*
       2:  *                     Logging of RCS commands co and ci
       3:  */
       4: #ifndef lint
       5:  static char rcsid[]=
       6:  "$Header: /usr/src/local/bin/rcs/src/RCS/snoop.c,v 4.3 87/12/18 11:46:52 narten Exp $ Purdue CS";
       7: #endif
       8: /*******************************************************************
       9:  * This program appends argv[1] to the file SNOOPFILE.
      10:  * To avoid overlaps, it creates a lockfile with name lock in the same
      11:  * directory as SNOOPFILE. SNOOPFILE must be defined in the cc command.
      12:  * Prints an error message if lockfile doesn't get deleted after
      13:  * MAXTRIES tries.
      14:  *******************************************************************
      15:  *
      16:  * Copyright (C) 1982 by Walter F. Tichy
      17:  *                       Purdue University
      18:  *                       Computer Science Department
      19:  *                       West Lafayette, IN 47907
      20:  *
      21:  * All rights reserved. No part of this software may be sold or distributed
      22:  * in any form or by any means without the prior written permission of the
      23:  * author.
      24:  * Report problems and direct all inquiries to Tichy@purdue (ARPA net).
      25:  */
      26:
      27:
      28: /* $Log:	snoop.c,v $
      29:  * Revision 4.3  87/12/18  11:46:52  narten
      30:  * more lint cleanups (Guy Harris)
      31:  *
      32:  * Revision 4.2  87/10/18  10:41:47  narten
      33:  * Changing version numbers. Changes relative to 1.1 actually relative to
      34:  * 4.1
      35:  *
      36:  * Revision 1.2  87/09/24  14:01:41  narten
      37:  * Sources now pass through lint (if you ignore printf/sprintf/fprintf
      38:  * warnings)
      39:  *
      40:  * Revision 1.1  84/01/23  14:50:49  kcs
      41:  * Initial revision
      42:  *
      43:  * Revision 4.1  83/03/28  13:23:42  wft
      44:  * No change; just new revision number.
      45:  *
      46:  * Revision 3.2  82/12/04  17:14:31  wft
      47:  * Added rcsbase.h, changed SNOOPDIR to SNOOPFILE, reintroduced
      48:  * error message in case of permanent locking.
      49:  *
      50:  * Revision 3.1  82/10/18  21:22:03  wft
      51:  * Number of polls now 20, no error message if critical section can't
      52:  * be entered.
      53:  *
      54:  * Revision 2.3  82/07/01  23:49:28  wft
      55:  * changed copyright notice only.
      56:  *
      57:  * Revision 2.2  82/06/03  20:00:10  wft
      58:  * changed name from rcslog to snoop, replaced LOGDIR with SNOOPDIR.
      59:  *
      60:  * Revision 2.1  82/05/06  17:55:54  wft
      61:  * Initial revision
      62:  *
      63:  */
      64:
      65:
      66: #include "rcsbase.h"
      67: #define fflsbuf _flsbuf
      68: /* undo redefinition of putc in rcsbase.h */
      69:
      70: char  lockfname[NCPPN];
      71: FILE * logfile;
      72: int lockfile;
      73:
      74: #define MAXTRIES 20
      75:
      76: main(argc,argv)
      77: int argc; char * argv[];
      78: /* writes argv[1] to SNOOPFILE and appends a newline. Invoked as follows:
      79:  * rcslog logmessage
      80:  */
      81: {       int tries;
      82:         register char * lastslash, *sp;
      83:
      84:         VOID strcpy(lockfname,(char *) SNOOPFILE);
      85:         lastslash = sp = lockfname;
      86:         while (*sp) if (*sp++ =='/') lastslash=sp; /* points beyond / */
      87:         VOID strcpy(lastslash,",lockfile");
      88:         tries=0;
      89:         while (((lockfile=creat(lockfname, 000)) == -1) && (tries<=MAXTRIES)) {
      90:                 tries++;
      91:                 sleep(5);
      92:         }
      93:         if (tries<=MAXTRIES) {
      94:                 VOID close(lockfile);
      95:                 if ((logfile=fopen(SNOOPFILE,"a")) ==NULL) {
      96:                         VOID fprintf(stderr,"Can't open logfile %s\n",SNOOPFILE);
      97:                 } else {
      98:                         VOID fputs(argv[1],logfile);
      99:                         VOID putc('\n',logfile);
     100:                         VOID fclose(logfile);
     101:                 }
     102:                 VOID unlink(lockfname);
     103:         } else {
     104:                 VOID fprintf(stderr,"RCS logfile %s seems permanently locked.\n",SNOOPFILE);
     105:                 VOID fprintf(stderr,"Please alert system administrator\n");
     106:         }
     107: }

#### Defined functions

main defined in line 76; never used

#### Defined variables

lockfile defined in line 72; used 2 times

- in line 89-94(2)

lockfname defined in line 70; used 4 times

- in line 84-89(3), 102

rcsid defined in line 5; never used

#### Defined macros

MAXTRIES defined in line 74; used 2 times

- in line 89-93(2)

fflsbuf defined in line 67; never used

Last modified: 1988-02-18 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 529 |