244 lines
6.7 KiB
C
244 lines
6.7 KiB
C
/*
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* Copyright (c) 1981, 1988 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1981, 1988 The Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)rmail.c 4.15 (Berkeley) 5/31/90";
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static char rcsid[] = "$Header: /cvsroot/src/libexec/rmail/Attic/rmail.c,v 1.3 1993/03/23 00:27:17 cgd Exp $";
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#endif /* not lint */
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/*
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* RMAIL -- UUCP mail server.
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*
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* This program reads the >From ... remote from ... lines that
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* UUCP is so fond of and turns them into something reasonable.
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* It calls sendmail giving it a -f option built from these lines.
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*/
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#include <sysexits.h>
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#include <sys/types.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <paths.h>
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typedef char bool;
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#define TRUE 1
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#define FALSE 0
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extern char *index();
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extern char *rindex();
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char *Domain = "UUCP"; /* Default "Domain" */
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main(argc, argv)
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int argc;
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char **argv;
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{
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char lbuf[1024]; /* one line of the message */
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char from[512]; /* accumulated path of sender */
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char ufrom[512]; /* user on remote system */
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char sys[512]; /* a system in path */
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char fsys[512]; /* first system in path */
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char junk[1024]; /* scratchpad */
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char *args[100]; /* arguments to mailer command */
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register char *cp;
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register char *uf = NULL; /* ptr into ufrom */
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int i;
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long position;
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struct stat sbuf;
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#ifdef DEBUG
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bool Debug;
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if (argc > 1 && strcmp(argv[1], "-T") == 0) {
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Debug = TRUE;
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argc--;
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argv++;
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}
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#endif
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if (argc < 2) {
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fprintf(stderr, "Usage: rmail user ...\n");
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exit(EX_USAGE);
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}
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if (argc > 2 && strncmp(argv[1], "-D", 2) == 0) {
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Domain = &argv[1][2];
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argc -= 2;
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argv += 2;
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}
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from[0] = '\0';
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fsys[0] = '\0';
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(void) strcpy(ufrom, _PATH_DEVNULL);
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for (position = 0;; position = ftell(stdin)) {
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if (fgets(lbuf, sizeof lbuf, stdin) == NULL)
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exit(EX_DATAERR);
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if (strncmp(lbuf, "From ", 5) != 0 &&
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strncmp(lbuf, ">From ", 6) != 0)
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break;
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(void) sscanf(lbuf, "%s %s", junk, ufrom);
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cp = lbuf;
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uf = ufrom;
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for (;;) {
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cp = index(cp + 1, 'r');
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if (cp == NULL) {
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register char *p = rindex(uf, '!');
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if (p != NULL) {
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*p = '\0';
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(void) strcpy(sys, uf);
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uf = p + 1;
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break;
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}
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(void) strcpy(sys, "");
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break; /* no "remote from" found */
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}
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#ifdef DEBUG
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if (Debug)
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printf("cp='%s'\n", cp);
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#endif
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if (strncmp(cp, "remote from ", 12) == 0)
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break;
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}
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if (cp != NULL)
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(void) sscanf(cp, "remote from %s", sys);
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if (fsys[0] == '\0')
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(void) strcpy(fsys, sys);
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if (sys[0]) {
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(void) strcat(from, sys);
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(void) strcat(from, "!");
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}
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#ifdef DEBUG
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if (Debug)
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printf("ufrom='%s', sys='%s', from now '%s'\n", uf, sys, from);
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#endif
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}
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if (uf == NULL) { /* No From line was provided */
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fprintf(stderr, "No From line in rmail\n");
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exit(EX_DATAERR);
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}
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(void) strcat(from, uf);
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(void) fstat(0, &sbuf);
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(void) lseek(0, position, L_SET);
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/*
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* Now we rebuild the argument list and chain to sendmail. Note that
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* the above lseek might fail on irregular files, but we check for
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* that case below.
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*/
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i = 0;
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args[i++] = _PATH_SENDMAIL;
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args[i++] = "-oee"; /* no errors, just status */
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args[i++] = "-odq"; /* queue it, don't try to deliver */
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args[i++] = "-oi"; /* ignore '.' on a line by itself */
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if (fsys[0] != '\0') { /* set sender's host name */
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static char junk2[512];
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if (index(fsys, '.') == NULL) {
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(void) strcat(fsys, ".");
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(void) strcat(fsys, Domain);
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}
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(void) sprintf(junk2, "-oMs%s", fsys);
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args[i++] = junk2;
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}
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/* set protocol used */
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(void) sprintf(junk, "-oMr%s", Domain);
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args[i++] = junk;
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if (from[0] != '\0') { /* set name of ``from'' person */
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static char junk2[512];
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(void) sprintf(junk2, "-f%s", from);
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args[i++] = junk2;
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}
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for (; *++argv != NULL; i++) {
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/*
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* don't copy arguments beginning with - as they will
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* be passed to sendmail and could be interpreted as flags
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* should be fixed in sendmail by using getopt(3), and
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* just passing "--" before regular args.
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*/
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if (**argv != '-')
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args[i] = *argv;
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}
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args[i] = NULL;
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#ifdef DEBUG
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if (Debug) {
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printf("Command:");
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for (i = 0; args[i]; i++)
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printf(" %s", args[i]);
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printf("\n");
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}
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#endif
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if ((sbuf.st_mode & S_IFMT) != S_IFREG) {
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/*
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* If we were not called with standard input on a regular
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* file, then we have to fork another process to send the
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* first line down the pipe.
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*/
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int pipefd[2];
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#ifdef DEBUG
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if (Debug)
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printf("Not a regular file!\n");
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#endif
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if (pipe(pipefd) < 0)
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exit(EX_OSERR);
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if (fork() == 0) {
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/*
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* Child: send the message down the pipe.
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*/
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FILE *out;
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out = fdopen(pipefd[1], "w");
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close(pipefd[0]);
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fputs(lbuf, out);
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while (fgets(lbuf, sizeof lbuf, stdin))
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fputs(lbuf, out);
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(void) fclose(out);
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exit(EX_OK);
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}
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/*
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* Parent: call sendmail with pipe as standard input
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*/
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close(pipefd[1]);
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dup2(pipefd[0], 0);
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}
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execv(_PATH_SENDMAIL, args);
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fprintf(stderr, "Exec of %s failed!\n", _PATH_SENDMAIL);
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exit(EX_OSERR);
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}
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