BSD 4_3_Net_2 release

[unix-history] / usr / src / libexec / bugfiler / gethead.c

/*
* Copyright (c) 1986, 1987 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef lint
static char sccsid[] = "@(#)gethead.c   5.10 (Berkeley) 3/7/91";
#endif /* not lint */

#include <sys/param.h>
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "pathnames.h"
#include "bug.h"

static int      chk1(), pbuf();

#define ENT(X)  sizeof(X) - 1, X
HEADER  mailhead[] = {                          /* mail headers */
       { NO, YES,  NULL, ENT("Date:"), },
       { NO,  NO,  NULL, ENT("From "), },
       { NO, YES,  NULL, ENT("From:"), },
       { NO,  NO,  chk1, ENT("Index:"), },
       { NO, YES,  NULL, ENT("Message-Id:"), },
       { NO, YES,  NULL, ENT("Reply-To:"), },
       { NO, YES,  NULL, ENT("Return-Path:"), },
       { NO,  NO,  pbuf, ENT("Subject:"), },
       { NO, YES,  NULL, ENT("To:"), },
       { NO,  NO,  NULL, ENT("Apparently-To:"), },
       { ERR, }
};

FILE    *dfp;                           /* distf file pointer */
char    dir[MAXNAMLEN],                 /* subject and folder */
       folder[MAXNAMLEN];

/*
* gethead --
*      read mail and bug headers from bug report, construct redist headers
*/
gethead(redist)
       int     redist;
{
       register HEADER *hp;            /* mail header pointer */

       if (redist) {
               int     fd;
               char    *distf;

               distf = strdup(_PATH_TMP);
               if (!(fd = mkstemp(distf)) || !(dfp = fdopen(fd, "w+")))
                       error("can't create redistribution file %s.", distf);
               /* disappear after last reference is closed */
               (void)unlink(distf);
               free(distf);
       }
       if (!freopen(tmpname, "r", stdin))
               error("can't read temporary bug file %s.", tmpname);

       while (fgets(bfr, sizeof(bfr), stdin)) {
               for (hp = mailhead; hp->found != ERR; ++hp)
                       if (!hp->found)
                               if (!strncmp(hp->tag, bfr, hp->len)) {
                                       if (hp->valid && !((*(hp->valid))(bfr)))
                                               break;
                                       if (!(hp->line = malloc((u_int)(strlen(bfr) + 1))))
                                               error("malloc failed.", CHN);
                                       (void)strcpy(hp->line, bfr);
                                       hp->found = YES;
                                       break;
                               }
               if ((hp->found == ERR || hp->redist) && redist)
                       fputs(bfr, dfp);
       }

       if (!mailhead[INDX_TAG].found)
               error("no readable \"Index:\" header in bug report.", CHN);
}

/*
* chk1 --
*      parse the "Index:" line into folder and directory
*/
static
chk1(line)
       char    *line;
{
       register char   *C;             /* tmp pointer */
       struct stat     sbuf;           /* existence check */
       char    *index();

       if (sscanf(line, " Index: %s %s ", folder, dir) != 2)
               return(NO);
       if (C = index(folder, '/')) {   /* deal with "bin/from.c" */
               if (C == folder)
                       return(NO);
               *C = EOS;
       }
       if (stat(dir, &sbuf) || (sbuf.st_mode & S_IFMT) != S_IFDIR)
               return(NO);
       (void)pbuf(line);
       return(YES);
}

/*
* pbuf --
*      kludge so that summary file looks pretty
*/
static
pbuf(line)
       char    *line;
{
       register char   *rp,                    /* tmp pointers */
                       *wp;

       for (rp = line; *rp == ' ' || *rp == '\t'; ++rp);
       for (wp = line; *rp; ++wp) {
               if ((*wp = *rp++) != ' ' && *wp != '\t')
                       continue;
               *wp = ' ';
               while (*rp == ' ' || *rp == '\t')
                       ++rp;
       }
       if (wp[-1] == ' ')                      /* wp can't == line */
               --wp;
       *wp = EOS;
       return(YES);
}