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| author | phk <phk@FreeBSD.org> | 1998-05-19 08:58:53 +0000 |
|---|---|---|
| committer | phk <phk@FreeBSD.org> | 1998-05-19 08:58:53 +0000 |
| commit | 00b3b49e1bf2cd947f5d9fc0b4a645f000094534 (patch) | |
| tree | a3d52080f8083f77f09440de2e58dd996011132f /sbin | |
| parent | 24a3627dd77ad1a523424cb9870b1a78c219ff5e (diff) | |
| download | FreeBSD-src-00b3b49e1bf2cd947f5d9fc0b4a645f000094534.zip FreeBSD-src-00b3b49e1bf2cd947f5d9fc0b4a645f000094534.tar.gz | |
Make the size of the msgbuf (dmesg) a "normal" option.
Diffstat (limited to 'sbin')
| -rw-r--r-- | sbin/dmesg/dmesg.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/sbin/dmesg/dmesg.c b/sbin/dmesg/dmesg.c index 2746e35..cb7d532 100644 --- a/sbin/dmesg/dmesg.c +++ b/sbin/dmesg/dmesg.c @@ -42,7 +42,7 @@ static const char copyright[] = static const char sccsid[] = "@(#)dmesg.c 8.1 (Berkeley) 6/5/93"; #endif static const char rcsid[] = - "$Id: dmesg.c,v 1.6 1997/02/22 14:32:13 peter Exp $"; + "$Id: dmesg.c,v 1.7 1997/03/29 03:32:14 imp Exp $"; #endif /* not lint */ #include <sys/cdefs.h> @@ -79,7 +79,7 @@ main(argc, argv) register int ch, newl, skip; register char *p, *ep; struct msgbuf *bufp, cur; - char *memf, *nlistf; + char *bp, *memf, *nlistf; kvm_t *kd; char buf[5]; @@ -116,11 +116,17 @@ main(argc, argv) errx(1, "%s: msgbufp not found", nlistf ? nlistf : "namelist"); if (KREAD(nl[X_MSGBUF].n_value, bufp) || KREAD((long)bufp, cur)) errx(1, "kvm_read: %s", kvm_geterr(kd)); - kvm_close(kd); if (cur.msg_magic != MSG_MAGIC) errx(1, "magic number incorrect"); - if (cur.msg_bufx >= MSG_BSIZE) + bp = malloc(cur.msg_size); + if (!bp) + errx(1, "malloc failed"); + if (kvm_read(kd, (long)cur.msg_ptr, bp, cur.msg_size) != + cur.msg_size) + errx(1, "kvm_read: %s", kvm_geterr(kd)); + if (cur.msg_bufx >= cur.msg_size) cur.msg_bufx = 0; + kvm_close(kd); /* * The message buffer is circular. If the buffer has wrapped, the @@ -129,12 +135,12 @@ main(argc, argv) * buffer starting at the write pointer and ignore nulls so that * we effectively start at the oldest data. */ - p = cur.msg_bufc + cur.msg_bufx; - ep = (cur.msg_bufx == 0 ? cur.msg_bufc + MSG_BSIZE : p); + p = bp + cur.msg_bufx; + ep = (cur.msg_bufx == 0 ? bp + cur.msg_size : p); newl = skip = 0; do { - if (p == cur.msg_bufc + MSG_BSIZE) - p = cur.msg_bufc; + if (p == bp + cur.msg_size) + p = bp; ch = *p; /* Skip "\n<.*>" syslog sequences. */ if (skip) { |
