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Change some "process id" variables from 'int' to 'pid_t', renaming some

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of them to keep better track of which-is-which (multiple variables were
named 'pid').  Moved a global pid-variable into the only routine that
used it.  Net result: fixes two compile-time warnings...

MFC after:	2 weeks
This commit is contained in:
Garance A Drosehn 2002-06-04 03:40:24 +00:00
parent 0dcfaee0af
commit 5e127035e4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=97793
1 changed files with 31 additions and 28 deletions
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59
usr.sbin/lpr/lpd/printjob.c
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@ -94,14 +94,13 @@ static const char rcsid[] =
static dev_t fdev; /* device of file pointed to by symlink */
static ino_t fino; /* inode of file pointed to by symlink */
static FILE *cfp; /* control file */
static pid_t of_pid; /* process id of output filter, if any */
static int child; /* id of any filters */
static int job_dfcnt; /* count of datafiles in current user job */
static int lfd; /* lock file descriptor */
static int ofd; /* output filter file descriptor */
static int ofilter; /* id of output filter, if any */
static int tfd = -1; /* output filter temp file output */
static int pfd; /* prstatic inter file descriptor */
static int pid; /* pid of lpd process */
static int prchild; /* id of pr process */
static char title[80]; /* ``pr'' title */
static char locale[80]; /* ``pr'' locale */
@ -159,6 +158,7 @@ printjob(struct printer *pp)
struct jobqueue **queue;
register int i, nitems;
off_t pidoff;
pid_t printpid;
int errcnt, jobcount, tempfd;
jobcount = 0;
@ -171,8 +171,8 @@ printjob(struct printer *pp)
(void) open(_PATH_DEVNULL, O_WRONLY);
}
setgid(getegid());
pid = getpid(); /* for use with lprm */
setpgrp(0, pid);
printpid = getpid(); /* for use with lprm */
setpgrp(0, printpid);
/*
* At initial lpd startup, printjob may be called with various
@ -215,7 +215,7 @@ printjob(struct printer *pp)
/*
* write process id for others to know
*/
sprintf(line, "%u\n", pid);
sprintf(line, "%u\n", printpid);
pidoff = i = strlen(line);
if (write(lfd, line, i) != i) {
syslog(LOG_ERR, "%s: write(%s): %m", pp->printer,
@ -300,15 +300,15 @@ printjob(struct printer *pp)
else if (i == REPRINT && ++errcnt < 5) {
/* try reprinting the job */
syslog(LOG_INFO, "restarting %s", pp->printer);
if (ofilter > 0) {
kill(ofilter, SIGCONT); /* to be sure */
if (of_pid > 0) {
kill(of_pid, SIGCONT); /* to be sure */
(void) close(ofd);
while ((i = wait(NULL)) > 0 && i != ofilter)
while ((i = wait(NULL)) > 0 && i != of_pid)
;
if (i < 0)
syslog(LOG_WARNING, "%s: after kill(of=%d), wait() returned: %m",
pp->printer, ofilter);
ofilter = 0;
pp->printer, of_pid);
of_pid = 0;
}
(void) close(pfd); /* close printer */
if (ftruncate(lfd, pidoff) < 0)
@ -608,7 +608,8 @@ print(struct printer *pp, int format, char *file)
int fi, fo;
FILE *fp;
char *av[15], buf[BUFSIZ];
int pid, p[2], retcode, stopped, wstatus, wstatus_set;
pid_t wpid;
int p[2], retcode, stopped, wstatus, wstatus_set;
struct stat stb;
if (lstat(file, &stb) < 0 || (fi = open(file, O_RDONLY)) < 0) {
@ -781,12 +782,12 @@ print(struct printer *pp, int format, char *file)
av[n++] = pp->acct_file;
av[n] = 0;
fo = pfd;
if (ofilter > 0) { /* stop output filter */
if (of_pid > 0) { /* stop output filter */
write(ofd, "\031\1", 2);
while ((pid =
wait3(&wstatus, WUNTRACED, 0)) > 0 && pid != ofilter)
while ((wpid =
wait3(&wstatus, WUNTRACED, 0)) > 0 && wpid != of_pid)
;
if (pid < 0)
if (wpid < 0)
syslog(LOG_WARNING,
"%s: after stopping 'of', wait3() returned: %m",
pp->printer);
@ -794,7 +795,7 @@ print(struct printer *pp, int format, char *file)
(void) close(fi);
syslog(LOG_WARNING, "%s: output filter died "
"(pid=%d retcode=%d termsig=%d)",
pp->printer, ofilter, WEXITSTATUS(wstatus),
pp->printer, of_pid, WEXITSTATUS(wstatus),
WTERMSIG(wstatus));
return (REPRINT);
}
@ -821,9 +822,9 @@ print(struct printer *pp, int format, char *file)
if (child < 0)
retcode = 100;
else {
while ((pid = wait(&wstatus)) > 0 && pid != child)
while ((wpid = wait(&wstatus)) > 0 && wpid != child)
;
if (pid < 0) {
if (wpid < 0) {
retcode = 100;
syslog(LOG_WARNING,
"%s: after execv(%s), wait() returned: %m",
@ -836,7 +837,7 @@ print(struct printer *pp, int format, char *file)
child = 0;
prchild = 0;
if (stopped) { /* restart output filter */
if (kill(ofilter, SIGCONT) < 0) {
if (kill(of_pid, SIGCONT) < 0) {
syslog(LOG_ERR, "cannot restart output filter");
exit(1);
}
@ -1221,7 +1222,8 @@ sendfile(struct printer *pp, int type, char *file, char format, int copyreq)
static int
execfilter(struct printer *pp, char *f_cmd, char *f_av[], int infd, int outfd)
{
int errfd, fpid, retcode, wpid, wstatus;
pid_t fpid, wpid;
int errfd, retcode, wstatus;
FILE *errfp;
char buf[BUFSIZ], *slash;
@ -1505,7 +1507,8 @@ sendmail(struct printer *pp, char *userid, int bombed)
static int
dofork(const struct printer *pp, int action)
{
int i, fail, forkpid;
pid_t forkpid;
int i, fail;
struct passwd *pwd;
forkpid = -1;
@ -1588,11 +1591,11 @@ abortpr(int signo __unused)
(void) unlink(tempstderr);
kill(0, SIGINT);
if (ofilter > 0)
kill(ofilter, SIGCONT);
if (of_pid > 0)
kill(of_pid, SIGCONT);
while (wait(NULL) > 0)
;
if (ofilter > 0 && tfd != -1)
if (of_pid > 0 && tfd != -1)
unlink(tfile);
exit(0);
}
@ -1655,7 +1658,7 @@ openpr(const struct printer *pp)
* does not use these global "output filter" variables.
*/
ofd = -1;
ofilter = 0;
of_pid = 0;
return;
} else if (*pp->lp) {
if ((cp = strchr(pp->lp, '@')) != NULL)
@ -1671,13 +1674,13 @@ openpr(const struct printer *pp)
/*
* Start up an output filter, if needed.
*/
if (pp->filters[LPF_OUTPUT] && !pp->filters[LPF_INPUT] && !ofilter) {
if (pp->filters[LPF_OUTPUT] && !pp->filters[LPF_INPUT] && !of_pid) {
pipe(p);
if (pp->remote) {
strcpy(tfile, TFILENAME);
tfd = mkstemp(tfile);
}
if ((ofilter = dofork(pp, DOABORT)) == 0) { /* child */
if ((of_pid = dofork(pp, DOABORT)) == 0) { /* child */
dup2(p[0], 0); /* pipe is std in */
/* tfile/printer is stdout */
dup2(pp->remote ? tfd : pfd, 1);
@ -1697,7 +1700,7 @@ openpr(const struct printer *pp)
ofd = p[1]; /* use pipe for output */
} else {
ofd = pfd;
ofilter = 0;
of_pid = 0;
}
}