Use err(3). Add usage().
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90389da95b
commit
752d887a62
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=28695
@ -32,13 +32,17 @@
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*/
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#ifndef lint
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static char copyright[] =
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static const char copyright[] =
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"@(#) Copyright (c) 1988, 1990, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)wall.c 8.2 (Berkeley) 11/16/93";
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#endif
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static const char rcsid[] =
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"$Id$";
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#endif /* not lint */
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/*
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@ -51,6 +55,8 @@ static char sccsid[] = "@(#)wall.c 8.2 (Berkeley) 11/16/93";
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#include <sys/time.h>
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#include <sys/uio.h>
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#include <ctype.h>
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#include <err.h>
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#include <locale.h>
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#include <paths.h>
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#include <pwd.h>
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@ -61,6 +67,7 @@ static char sccsid[] = "@(#)wall.c 8.2 (Berkeley) 11/16/93";
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#include <utmp.h>
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void makemsg __P((char *));
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static void usage __P((void));
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#define IGNOREUSER "sleeper"
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@ -74,7 +81,6 @@ main(argc, argv)
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int argc;
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char **argv;
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{
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extern int optind;
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int ch;
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struct iovec iov;
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struct utmp utmp;
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@ -93,21 +99,17 @@ main(argc, argv)
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break;
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case '?':
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default:
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usage:
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(void)fprintf(stderr, "usage: wall [file]\n");
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exit(1);
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usage();
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}
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argc -= optind;
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argv += optind;
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if (argc > 1)
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goto usage;
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usage();
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makemsg(*argv);
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if (!(fp = fopen(_PATH_UTMP, "r"))) {
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(void)fprintf(stderr, "wall: cannot read %s.\n", _PATH_UTMP);
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exit(1);
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}
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if (!(fp = fopen(_PATH_UTMP, "r")))
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errx(1, "cannot read %s", _PATH_UTMP);
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iov.iov_base = mbuf;
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iov.iov_len = mbufsize;
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/* NOSTRICT */
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@ -118,11 +120,18 @@ main(argc, argv)
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strncpy(line, utmp.ut_line, sizeof(utmp.ut_line));
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line[sizeof(utmp.ut_line)] = '\0';
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if ((p = ttymsg(&iov, 1, line, 60*5)) != NULL)
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(void)fprintf(stderr, "wall: %s\n", p);
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warnx("%s", p);
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}
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exit(0);
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}
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static void
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usage()
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{
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(void)fprintf(stderr, "usage: wall [file]\n");
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exit(1);
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}
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void
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makemsg(fname)
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char *fname;
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@ -140,10 +149,8 @@ makemsg(fname)
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(void)strcpy(tmpname, _PATH_TMP);
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(void)strcat(tmpname, "/wall.XXXXXX");
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if (!(fd = mkstemp(tmpname)) || !(fp = fdopen(fd, "r+"))) {
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(void)fprintf(stderr, "wall: can't open temporary file.\n");
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exit(1);
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}
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if (!(fd = mkstemp(tmpname)) || !(fp = fdopen(fd, "r+")))
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errx(1, "can't open temporary file");
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(void)unlink(tmpname);
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if (!nobanner) {
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@ -170,10 +177,8 @@ makemsg(fname)
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}
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(void)fprintf(fp, "%79s\r\n", " ");
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if (fname && !(freopen(fname, "r", stdin))) {
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(void)fprintf(stderr, "wall: can't read %s.\n", fname);
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exit(1);
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}
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if (fname && !(freopen(fname, "r", stdin)))
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errx(1, "can't read %s", fname);
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while (fgets(lbuf, sizeof(lbuf), stdin))
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for (cnt = 0, p = lbuf; (ch = *p) != '\0'; ++p, ++cnt) {
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again:
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@ -201,18 +206,12 @@ makemsg(fname)
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(void)fprintf(fp, "%79s\r\n", " ");
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rewind(fp);
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if (fstat(fd, &sbuf)) {
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(void)fprintf(stderr, "wall: can't stat temporary file.\n");
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exit(1);
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}
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if (fstat(fd, &sbuf))
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errx(1, "can't stat temporary file");
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mbufsize = sbuf.st_size;
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if (!(mbuf = malloc((u_int)mbufsize))) {
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(void)fprintf(stderr, "wall: out of memory.\n");
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exit(1);
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}
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if (fread(mbuf, sizeof(*mbuf), mbufsize, fp) != mbufsize) {
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(void)fprintf(stderr, "wall: can't read temporary file.\n");
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exit(1);
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}
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if (!(mbuf = malloc((u_int)mbufsize)))
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errx(1, "out of memory");
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if (fread(mbuf, sizeof(*mbuf), mbufsize, fp) != mbufsize)
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errx(1, "can't read temporary file");
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(void)close(fd);
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}
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