===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/misc.c,v
retrieving revision 1.23
retrieving revision 1.23.2.2
diff -u -r1.23 -r1.23.2.2
--- src/usr.bin/ssh/misc.c	2003/10/28 09:08:06	1.23
+++ src/usr.bin/ssh/misc.c	2005/03/10 17:15:04	1.23.2.2
@@ -23,7 +23,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: misc.c,v 1.23 2003/10/28 09:08:06 markus Exp $");
+RCSID("$OpenBSD: misc.c,v 1.23.2.2 2005/03/10 17:15:04 brad Exp $");
 
 #include "misc.h"
 #include "log.h"
@@ -46,7 +46,7 @@
 }
 
 /* set/unset filedescriptor to non-blocking */
-void
+int
 set_nonblock(int fd)
 {
 	int val;
@@ -54,20 +54,23 @@
 	val = fcntl(fd, F_GETFL, 0);
 	if (val < 0) {
 		error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
-		return;
+		return (-1);
 	}
 	if (val & O_NONBLOCK) {
-		debug2("fd %d is O_NONBLOCK", fd);
-		return;
+		debug3("fd %d is O_NONBLOCK", fd);
+		return (0);
 	}
 	debug2("fd %d setting O_NONBLOCK", fd);
 	val |= O_NONBLOCK;
-	if (fcntl(fd, F_SETFL, val) == -1)
-		debug("fcntl(%d, F_SETFL, O_NONBLOCK): %s",
-		    fd, strerror(errno));
+	if (fcntl(fd, F_SETFL, val) == -1) {
+		debug("fcntl(%d, F_SETFL, O_NONBLOCK): %s", fd,
+		    strerror(errno));
+		return (-1);
+	}
+	return (0);
 }
 
-void
+int
 unset_nonblock(int fd)
 {
 	int val;
@@ -75,17 +78,20 @@
 	val = fcntl(fd, F_GETFL, 0);
 	if (val < 0) {
 		error("fcntl(%d, F_GETFL, 0): %s", fd, strerror(errno));
-		return;
+		return (-1);
 	}
 	if (!(val & O_NONBLOCK)) {
-		debug2("fd %d is not O_NONBLOCK", fd);
-		return;
+		debug3("fd %d is not O_NONBLOCK", fd);
+		return (0);
 	}
 	debug("fd %d clearing O_NONBLOCK", fd);
 	val &= ~O_NONBLOCK;
-	if (fcntl(fd, F_SETFL, val) == -1)
-		debug("fcntl(%d, F_SETFL, O_NONBLOCK): %s",
+	if (fcntl(fd, F_SETFL, val) == -1) {
+		debug("fcntl(%d, F_SETFL, ~O_NONBLOCK): %s",
 		    fd, strerror(errno));
+		return (-1);
+	}
+	return (0);
 }
 
 /* disable nagle on socket */
@@ -263,7 +269,49 @@
 	return total;
 }
 
+/*
+ * Search for next delimiter between hostnames/addresses and ports.
+ * Argument may be modified (for termination).
+ * Returns *cp if parsing succeeds.
+ * *cp is set to the start of the next delimiter, if one was found.
+ * If this is the last field, *cp is set to NULL.
+ */
 char *
+hpdelim(char **cp)
+{
+	char *s, *old;
+
+	if (cp == NULL || *cp == NULL)
+		return NULL;
+
+	old = s = *cp;
+	if (*s == '[') {
+		if ((s = strchr(s, ']')) == NULL)
+			return NULL;
+		else
+			s++;
+	} else if ((s = strpbrk(s, ":/")) == NULL)
+		s = *cp + strlen(*cp); /* skip to end (see first case below) */
+
+	switch (*s) {
+	case '\0':
+		*cp = NULL;	/* no more fields*/
+		break;
+	
+	case ':':
+	case '/':
+		*s = '\0';	/* terminate */
+		*cp = s + 1;
+		break;
+	
+	default:
+		return NULL;
+	}
+
+	return old;
+}
+
+char *
 cleanhostname(char *host)
 {
 	if (*host == '[' && host[strlen(host) - 1] == ']') {
@@ -302,7 +350,7 @@
 {
 	va_list ap;
 	char buf[1024];
-	int nalloc;
+	u_int nalloc;
 
 	va_start(ap, fmt);
 	vsnprintf(buf, sizeof(buf), fmt, ap);
@@ -319,4 +367,27 @@
 	args->nalloc = nalloc;
 	args->list[args->num++] = xstrdup(buf);
 	args->list[args->num] = NULL;
+}
+
+/*
+ * Read an entire line from a public key file into a static buffer, discarding
+ * lines that exceed the buffer size.  Returns 0 on success, -1 on failure.
+ */
+int
+read_keyfile_line(FILE *f, const char *filename, char *buf, size_t bufsz,
+   u_long *lineno)
+{
+	while (fgets(buf, bufsz, f) != NULL) {
+		(*lineno)++;
+		if (buf[strlen(buf) - 1] == '\n' || feof(f)) {
+			return 0;
+		} else {
+			debug("%s: %s line %lu exceeds size limit", __func__,
+			    filename, *lineno);
+			/* discard remainder of line */
+			while(fgetc(f) != '\n' && !feof(f))
+				;	/* nothing */
+		}
+	}
+	return -1;
 }