From 7b8d8db2da158220027e477687319f842097dddb Mon Sep 17 00:00:00 2001
From: hjp <hjp>
Date: Mon, 13 Jan 1997 14:59:41 +0000
Subject: [PATCH] Checked into CVS. Added -o and -s options.

---
 prwtmp/GNUmakefile |  22 ++++++++++
 prwtmp/prwtmp.c    | 104 +++++++++++++++++++++++++++++++++++++++++++++
 prwtmp/prwtmp.man  |  48 +++++++++++++++++++++
 3 files changed, 174 insertions(+)
 create mode 100644 prwtmp/GNUmakefile
 create mode 100644 prwtmp/prwtmp.c
 create mode 100644 prwtmp/prwtmp.man

diff --git a/prwtmp/GNUmakefile b/prwtmp/GNUmakefile
new file mode 100644
index 0000000..ee1a01c
--- /dev/null
+++ b/prwtmp/GNUmakefile
@@ -0,0 +1,22 @@
+CC = gcc -Wall
+INSTALL = /usr/local/bin/install
+
+prwtmp:
+
+install: $(ROOT)/usr/local/bin/prwtmp $(ROOT)/usr/local/man/man8/prwtmp.8
+
+install_all:
+	$(MAKE) install ROOT=/nfs/wsrdb
+	$(MAKE) install ROOT=/nfs/wsrcom
+	$(MAKE) install ROOT=/nfs/wifosv
+	$(MAKE) install ROOT=/nfs/ihssv
+	$(MAKE) install ROOT=/nfs/wsrtest
+
+$(ROOT)/usr/local/bin/%: %
+	$(INSTALL) $< $@
+
+$(ROOT)/usr/local/man/man8/%.8: %.man
+	$(INSTALL) $< $@
+
+clean:
+	rm prwtmp
diff --git a/prwtmp/prwtmp.c b/prwtmp/prwtmp.c
new file mode 100644
index 0000000..b49b0c8
--- /dev/null
+++ b/prwtmp/prwtmp.c
@@ -0,0 +1,104 @@
+char prwtmp_c_rcs_id[] = 
+	"$Id: prwtmp.c,v 1.1 1997-01-13 14:59:40 hjp Exp $";
+/*
+ * prwtmp - print wtmp to stdout
+ *
+ * $Log: prwtmp.c,v $
+ * Revision 1.1  1997-01-13 14:59:40  hjp
+ * Checked into CVS.
+ * Added -o and -s options.
+ *
+ */
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include <sys/types.h>
+#include <utmp.h>
+
+char *cmnd;
+
+void usage(void) {
+	fprintf(stderr, "Usage: %s [-o] [-s start] [file]\n", cmnd);
+	exit(1);
+}
+
+
+int main (int argc, char **argv) {
+	FILE *fp;
+	struct utmp u;
+	char *filename = WTMP_FILE;
+	long off;
+	int print_offset = 0;
+	int c;
+	char *p;
+
+	cmnd = argv[0];
+	while ((c = getopt(argc, argv, "s:o")) != EOF) {
+		switch(c) {
+		case 's':
+			off = strtoul(optarg, &p, 0);
+			if (p == optarg || *p != '\0') usage();
+			break;
+		case 'o':
+			print_offset = 1;
+			break;
+		case '?':
+			usage();
+		default:
+			assert(0);
+		}
+	}
+
+	if (argc > optind) filename = argv[optind];
+
+	fp = fopen(filename, "rb");
+	if (!fp) {
+		fprintf(stderr, "%s: cannot open %s: %s\n",
+			cmnd, filename, strerror(errno));
+		exit(1);
+	}
+	if (fseek(fp, off, SEEK_SET) == -1) {
+		fprintf(stderr, "%s: cannot seek to %ld on %s: %s\n",
+			cmnd, off, filename, strerror(errno));
+		exit(1);
+	}
+		
+	while (fread(&u, (int)sizeof(u), 1, fp) == 1) {
+		char tbuf[20];
+
+		if (print_offset) printf ("%8ld: ", off);
+		off += sizeof(u);
+
+		strftime(tbuf, (int)sizeof(tbuf), "%Y-%m-%d %H:%M:%S",
+		         localtime(&u.ut_time));
+		printf("%s ", tbuf);
+		printf("%-*.*s ",
+		       (int)sizeof(u.ut_user),
+		       (int)sizeof(u.ut_user),
+		       u.ut_user);
+		printf("%-*.*s ",
+		       (int)sizeof(u.ut_id),
+		       (int)sizeof(u.ut_id),
+		       u.ut_id);
+		printf("%-*.*s ",
+		       (int)sizeof(u.ut_line),
+		       (int)sizeof(u.ut_line),
+		       u.ut_line);
+		printf("%5d ", (int)u.ut_pid); /* PID is typically < 30000 */
+		printf("%5d ", (int)u.ut_type); /* short on HP-UX */
+		printf("%5d ", (int)u.ut_exit.e_termination); /* short on HP-UX */
+		printf("%5d ", (int)u.ut_exit.e_exit); /* short on HP-UX */
+		printf("%-*.*s ",
+		       (int)sizeof(u.ut_host),
+		       (int)sizeof(u.ut_host),
+		       u.ut_host);
+		printf("%08lx", u.ut_addr);
+		printf("\n");
+		
+	}
+	return 0;
+}
diff --git a/prwtmp/prwtmp.man b/prwtmp/prwtmp.man
new file mode 100644
index 0000000..0e22576
--- /dev/null
+++ b/prwtmp/prwtmp.man
@@ -0,0 +1,48 @@
+.\" $Header: /usr/local/src/master/simple/prwtmp/prwtmp.man,v 1.1 1997-01-13 14:59:41 hjp Exp $
+.TH prwtmp 8
+.SH NAME
+prwtmp \- print contents of wtmp file
+.SH SYNOPSIS
+.C prwtmp
+.RC [ \-o ]
+.RC [ \-s start ]
+.RC [ file ]
+.SH DESCRIPTION
+.C prwtmp 
+interpretes 
+.I file
+(default is the system wtmp file, normally /etc/wtmp, /var/log/wtmp, or
+/var/adm/wtmp) as a
+wtmp file and prints one line to stdout for each record. 
+If the 
+.B \-o
+Option is given, each record is preceded by a decimal byte offset.
+If the 
+.B -s
+Option is given, processing starts at the given byte offset instead of
+the beginning of the file.
+.SH RETURN VALUE
+Exit values are:
+.RS 3
+.TP 8
+.B \00
+Successful completion.
+.PD 0
+.TP
+.B >0
+Error condition occurred.
+.RE
+.PD
+.SH FILES
+.TP
+.B /etc/wtmp
+.B /var/adm/wtmp
+.B /var/log/wtmp
+Default wtmp file (depends on OS).
+.SH BUGS
+None known. There are a few improvements planned, though:
+An option to print the file in reverse (like last(1M), but without
+coalescing matching records). Some way to select records or columns.
+NLS support would be nice, too.
+.SH SEE ALSO
+last(1M)