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-rw-r--r--dutmp.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/dutmp.c b/dutmp.c
index 45eab8a..cf0d466 100644
--- a/dutmp.c
+++ b/dutmp.c
@@ -13,34 +13,35 @@
#include "internal.h"
#include <stdio.h>
+#include <errno.h>
#include <utmp.h>
+#define BB_DECLARE_EXTERN
+#define bb_need_io_error
+#include "messages.c"
static const char dutmp_usage[] = "dutmp\n"
"\n"
-
"\tDump file or stdin utmp file format to stdout, pipe delimited.\n"
"\tdutmp /var/run/utmp\n";
extern int dutmp_main(int argc, char **argv)
{
- FILE *f = stdin;
+ FILE *f;
struct utmp ut;
- if ((argc < 2) || (**(argv + 1) == '-')) {
+ if (argc<2) {
+ f = stdin;
+ } else if (*argv[1] == '-' ) {
usage(dutmp_usage);
- }
-
- if (**(++argv) == 0) {
- f = fopen(*(++argv), "r");
- if (f < 0) {
- perror(*argv);
- exit(FALSE);
+ } else {
+ f = fopen(argv[1], "r");
+ if (f == NULL) {
+ fatalError(io_error, argv[1], strerror(errno));
}
}
- while (fread(&ut, 1, sizeof(struct utmp), f)) {
- // printf("%d:%d:%s:%s:%s:%s:%d:%d:%ld:%ld:%ld:%x\n",
+ while (fread(&ut, sizeof(struct utmp), 1, f)) {
printf("%d|%d|%s|%s|%s|%s|%d|%d|%ld|%ld|%ld|%x\n",
ut.ut_type, ut.ut_pid, ut.ut_line,
ut.ut_id, ut.ut_user, ut.ut_host,