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Use STDIN_FILENO, STDOUT_FILENO, and STDERR_FILENO in a few more

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places (replacing constants 0, 1 & 2).

Noticed by:
Reviewed by:	md5
MFC after:	4 days
This commit is contained in:
Garance A Drosehn 2003-08-13 20:31:33 +00:00
parent 77685ea594
commit 53953407b6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=118881
3 changed files with 17 additions and 17 deletions
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2
usr.sbin/lpr/lpd/lpd.c
View File

@ -410,7 +410,7 @@ main(int argc, char **argv)
for (i = 1; i <= *finet; i++)
(void)close(finet[i]);
}
dup2(s, 1);
dup2(s, STDOUT_FILENO);
(void) close(s);
if (domain == AF_INET) {
/* for both AF_INET and AF_INET6 */

30
usr.sbin/lpr/lpd/printjob.c
View File

@ -163,8 +163,8 @@ printjob(struct printer *pp)
jobcount = 0;
init(pp); /* set up capabilities */
(void) write(1, "", 1); /* ack that daemon is started */
(void) close(2); /* set up log file */
(void) write(STDOUT_FILENO, "", 1); /* ack that daemon is started */
(void) close(STDERR_FILENO); /* set up log file */
if (open(pp->log_file, O_WRONLY|O_APPEND, LOG_FILE_MODE) < 0) {
syslog(LOG_ERR, "%s: open(%s): %m", pp->printer,
pp->log_file);
@ -664,8 +664,8 @@ print(struct printer *pp, int format, char *file)
}
pipe(p);
if ((prchild = dofork(pp, DORETURN)) == 0) { /* child */
dup2(fi, 0); /* file is stdin */
dup2(p[1], 1); /* pipe is stdout */
dup2(fi, STDIN_FILENO); /* file is stdin */
dup2(p[1], STDOUT_FILENO); /* pipe is stdout */
closelog();
closeallfds(3);
execl(_PATH_PR, "pr", width, length,
@ -803,13 +803,13 @@ print(struct printer *pp, int format, char *file)
}
start:
if ((child = dofork(pp, DORETURN)) == 0) { /* child */
dup2(fi, 0);
dup2(fo, 1);
dup2(fi, STDIN_FILENO);
dup2(fo, STDOUT_FILENO);
/* setup stderr for the filter (child process)
* so it goes to our temporary errors file */
n = open(tempstderr, O_WRONLY|O_TRUNC, 0664);
if (n >= 0)
dup2(n, 2);
dup2(n, STDERR_FILENO);
closelog();
closeallfds(3);
execv(prog, av);
@ -1285,11 +1285,11 @@ execfilter(struct printer *pp, char *f_cmd, char *f_av[], int infd, int outfd)
* file, and the parent process will copy that temporary file to
* the real logfile after the filter completes.
*/
dup2(infd, 0);
dup2(outfd, 1);
dup2(infd, STDIN_FILENO);
dup2(outfd, STDOUT_FILENO);
errfd = open(tempstderr, O_WRONLY|O_TRUNC, 0664);
if (errfd >= 0)
dup2(errfd, 2);
dup2(errfd, STDERR_FILENO);
closelog();
closeallfds(3);
execv(f_cmd, f_av);
@ -1438,7 +1438,7 @@ sendmail(struct printer *pp, char *userid, int bombed)
pipe(p);
if ((s = dofork(pp, DORETURN)) == 0) { /* child */
dup2(p[0], 0);
dup2(p[0], STDIN_FILENO);
closelog();
closeallfds(3);
if ((cp = strrchr(_PATH_SENDMAIL, '/')) != NULL)
@ -1448,7 +1448,7 @@ sendmail(struct printer *pp, char *userid, int bombed)
execl(_PATH_SENDMAIL, cp, "-t", (char *)0);
_exit(0);
} else if (s > 0) { /* parent */
dup2(p[1], 1);
dup2(p[1], STDOUT_FILENO);
printf("To: %s@%s\n", userid, origin_host);
printf("Subject: %s printer job \"%s\"\n", pp->printer,
*jobname ? jobname : "<unknown>");
@ -1489,7 +1489,7 @@ sendmail(struct printer *pp, char *userid, int bombed)
printf("\nwas not printed because it was not linked to the original file\n");
}
fflush(stdout);
(void) close(1);
(void) close(STDOUT_FILENO);
} else {
syslog(LOG_WARNING, "unable to send mail to %s: %m", userid);
return;
@ -1681,9 +1681,9 @@ openpr(const struct printer *pp)
tfd = mkstemp(tfile);
}
if ((of_pid = dofork(pp, DOABORT)) == 0) { /* child */
dup2(p[0], 0); /* pipe is std in */
dup2(p[0], STDIN_FILENO); /* pipe is std in */
/* tfile/printer is stdout */
dup2(pp->remote ? tfd : pfd, 1);
dup2(pp->remote ? tfd : pfd, STDOUT_FILENO);
closelog();
closeallfds(3);
if ((cp = strrchr(pp->filters[LPF_OUTPUT], '/')) == NULL)

2
usr.sbin/lpr/lpd/recvjob.c
View File

@ -111,7 +111,7 @@ recvjob(const char *printer)
break;
}
(void) close(2); /* set up log file */
(void) close(STDERR_FILENO); /* set up log file */
if (open(pp->log_file, O_WRONLY|O_APPEND, 0664) < 0) {
syslog(LOG_ERR, "%s: %m", pp->log_file);
(void) open(_PATH_DEVNULL, O_WRONLY);