Author: araujo
Date: Thu Jan 31 23:32:19 2019
New Revision: 343634
URL: https://svnweb.freebsd.org/changeset/base/343634

Log:
  Mostly a cosmetic change to replace strlen with strnlen.
  
  Obtained from:        Project ACRN
  MFC after:    2 weeks

Modified:
  head/usr.sbin/bhyve/bhyverun.c
  head/usr.sbin/bhyve/smbiostbl.c
  head/usr.sbin/bhyve/usb_mouse.c

Modified: head/usr.sbin/bhyve/bhyverun.c
==============================================================================
--- head/usr.sbin/bhyve/bhyverun.c      Thu Jan 31 23:21:18 2019        
(r343633)
+++ head/usr.sbin/bhyve/bhyverun.c      Thu Jan 31 23:32:19 2019        
(r343634)
@@ -233,8 +233,8 @@ usage(int code)
                "       -W: force virtio to use single-vector MSI\n"
                "       -x: local apic is in x2APIC mode\n"
                "       -Y: disable MPtable generation\n",
-               progname, (int)strlen(progname), "", (int)strlen(progname), "",
-               (int)strlen(progname), "");
+               progname, (int)strnlen(progname, PATH_MAX), "", 
(int)strnlen(progname, PATH_MAX), "",
+               (int)strnlen(progname, PATH_MAX), "");
 
        exit(code);
 }

Modified: head/usr.sbin/bhyve/smbiostbl.c
==============================================================================
--- head/usr.sbin/bhyve/smbiostbl.c     Thu Jan 31 23:21:18 2019        
(r343633)
+++ head/usr.sbin/bhyve/smbiostbl.c     Thu Jan 31 23:32:19 2019        
(r343634)
@@ -558,7 +558,7 @@ smbios_generic_initializer(struct smbios_structure *te
                        int len;
 
                        string = template_strings[i];
-                       len = strlen(string) + 1;
+                       len = strnlen(string, SMBIOS_MAX_LENGTH) + 1;
                        memcpy(curaddr, string, len);
                        curaddr += len;
                }
@@ -611,7 +611,7 @@ smbios_type1_initializer(struct smbios_structure *temp
                        return (-1);
 
                MD5Init(&mdctx);
-               MD5Update(&mdctx, vmname, strlen(vmname));
+               MD5Update(&mdctx, vmname, strnlen(vmname, PATH_MAX));
                MD5Update(&mdctx, hostname, sizeof(hostname));
                MD5Final(digest, &mdctx);
 

Modified: head/usr.sbin/bhyve/usb_mouse.c
==============================================================================
--- head/usr.sbin/bhyve/usb_mouse.c     Thu Jan 31 23:21:18 2019        
(r343633)
+++ head/usr.sbin/bhyve/usb_mouse.c     Thu Jan 31 23:32:19 2019        
(r343634)
@@ -70,6 +70,7 @@ enum {
        UMSTR_MAX
 };
 
+#define UMOUSE_DESC_MAX_LEN    32
 static const char *umouse_desc_strings[] = {
        "\x04\x09",
        "BHYVE",
@@ -441,7 +442,7 @@ umouse_request(void *scarg, struct usb_data_xfer *xfer
                                goto done;
                        }
 
-                       slen = 2 + strlen(str) * 2;
+                       slen = 2 + strnlen(str, UMOUSE_DESC_MAX_LEN) * 2;
                        udata[0] = slen;
                        udata[1] = UDESC_STRING;
 
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