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authorBen Lindstrom <mouring@eviladmin.org>2001-03-05 07:01:18 +0000
committerBen Lindstrom <mouring@eviladmin.org>2001-03-05 07:01:18 +0000
commitd20b855bc6b7634575beeec572cdbdc57504d6a8 (patch)
tree5285776e5cbe66ff68c0eaf8638de634bbac25ea /ssh-keyscan.c
parent92a2e38f8e71b2d7b97df1f7a5ade9efaefdb184 (diff)
- deraadt@cvs.openbsd.org 2001/03/03 06:53:12
[ssh-keyscan.c] standard theo sweep
Diffstat (limited to 'ssh-keyscan.c')
-rw-r--r--ssh-keyscan.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/ssh-keyscan.c b/ssh-keyscan.c
index a8fb028d..fe03c145 100644
--- a/ssh-keyscan.c
+++ b/ssh-keyscan.c
@@ -8,7 +8,7 @@
*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-keyscan.c,v 1.17 2001/02/21 07:37:04 deraadt Exp $");
+RCSID("$OpenBSD: ssh-keyscan.c,v 1.18 2001/03/03 06:53:12 deraadt Exp $");
#if defined(HAVE_SYS_QUEUE_H) && !defined(HAVE_BOGUS_SYS_QUEUE_H)
#include <sys/queue.h>
@@ -26,6 +26,7 @@ RCSID("$OpenBSD: ssh-keyscan.c,v 1.17 2001/02/21 07:37:04 deraadt Exp $");
#include "buffer.h"
#include "bufaux.h"
#include "log.h"
+#include "atomicio.h"
static int argno = 1; /* Number of argument currently being parsed */
@@ -37,7 +38,7 @@ int family = AF_UNSPEC; /* IPv4, IPv6 or both */
int timeout = 5;
int maxfd;
-#define maxcon (maxfd - 10)
+#define MAXCON (maxfd - 10)
#ifdef HAVE___PROGNAME
extern char *__progname;
@@ -368,9 +369,9 @@ conalloc(char *iname, char *oname)
void
confree(int s)
{
- close(s);
if (s >= maxfd || fdcon[s].c_status == CS_UNUSED)
fatal("confree: attempt to free bad fdno %d", s);
+ close(s);
xfree(fdcon[s].c_namebase);
xfree(fdcon[s].c_output_name);
if (fdcon[s].c_status == CS_KEYS)
@@ -428,7 +429,7 @@ congreet(int s)
buf[n - 1] = '\0';
fprintf(stderr, "# %s %s\n", c->c_name, buf);
n = snprintf(buf, sizeof buf, "SSH-1.5-OpenSSH-keyscan\r\n");
- if (write(s, buf, n) != n) {
+ if (atomicio(write, s, buf, n) != n) {
error("write (%s): %s", c->c_name, strerror(errno));
confree(s);
return;
@@ -488,9 +489,8 @@ conloop(void)
gettimeofday(&now, NULL);
c = tq.tqh_first;
- if (c &&
- (c->c_tv.tv_sec > now.tv_sec ||
- (c->c_tv.tv_sec == now.tv_sec && c->c_tv.tv_usec > now.tv_usec))) {
+ if (c && (c->c_tv.tv_sec > now.tv_sec ||
+ (c->c_tv.tv_sec == now.tv_sec && c->c_tv.tv_usec > now.tv_usec))) {
seltime = c->c_tv;
seltime.tv_sec -= now.tv_sec;
seltime.tv_usec -= now.tv_usec;
@@ -506,18 +506,19 @@ conloop(void)
(errno == EAGAIN || errno == EINTR))
;
- for (i = 0; i < maxfd; i++)
+ for (i = 0; i < maxfd; i++) {
if (FD_ISSET(i, &e)) {
error("%s: exception!", fdcon[i].c_name);
confree(i);
} else if (FD_ISSET(i, &r))
conread(i);
+ }
c = tq.tqh_first;
- while (c &&
- (c->c_tv.tv_sec < now.tv_sec ||
- (c->c_tv.tv_sec == now.tv_sec && c->c_tv.tv_usec < now.tv_usec))) {
+ while (c && (c->c_tv.tv_sec < now.tv_sec ||
+ (c->c_tv.tv_sec == now.tv_sec && c->c_tv.tv_usec < now.tv_usec))) {
int s = c->c_fd;
+
c = c->c_link.tqe_next;
conrecycle(s);
}
@@ -540,6 +541,7 @@ nexthost(int argc, char **argv)
return (argv[argno++]);
} else if (!strncmp(argv[argno], "-f", 2)) {
char *fname;
+
if (argv[argno][2])
fname = &argv[argno++][2];
else if (++argno >= argc) {
@@ -551,9 +553,11 @@ nexthost(int argc, char **argv)
fname = NULL;
lb = Linebuf_alloc(fname, error);
} else
- error("ignoring invalid/misplaced option `%s'", argv[argno++]);
+ error("ignoring invalid/misplaced option `%s'",
+ argv[argno++]);
} else {
char *line;
+
line = Linebuf_getline(lb);
if (line)
return (line);
@@ -601,7 +605,7 @@ main(int argc, char **argv)
fatal("%s: fdlim_get: bad value", __progname);
if (maxfd > MAXMAXFD)
maxfd = MAXMAXFD;
- if (maxcon <= 0)
+ if (MAXCON <= 0)
fatal("%s: not enough file descriptors", __progname);
if (maxfd > fdlim_get(0))
fdlim_set(maxfd);
@@ -609,7 +613,7 @@ main(int argc, char **argv)
memset(fdcon, 0, maxfd * sizeof(con));
do {
- while (ncon < maxcon) {
+ while (ncon < MAXCON) {
char *name;
host = nexthost(argc, argv);