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From: Pavel Vasilyev <pavel@pavlinux.ru>
Date: Tue, 27 Jan 2009 03:34:05 +0300
References: <200901270313.26331.pavel@pavlinux.ru>
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Subject: [Qemu-devel] [PATCH] Replace strcmp() by strncmp()
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Possible SIGSEGV=20

Index: net.c
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=2D-- net.c       (revision 6463)
+++ net.c       (working copy)
@@ -1568,7 +1586,7 @@
     if (get_param_value(buf, sizeof(buf), "name", p)) {
         name =3D strdup(buf);
     }
=2D    if (!strcmp(device, "nic")) {
+    if (!strncmp(device, "nic", 3)) {
         NICInfo *nd;
         uint8_t *macaddr;

@@ -1601,13 +1630,13 @@
         vlan->nb_guest_devs++;
         ret =3D 0;
     } else
=2D    if (!strcmp(device, "none")) {
+    if (!strncmp(device, "none", 4)) {
         /* does nothing. It is needed to signal that no network cards
            are wanted */
         ret =3D 0;
     } else
 #ifdef CONFIG_SLIRP
=2D    if (!strcmp(device, "user")) {
+    if (!strncmp(device, "user", 4)) {
         if (get_param_value(buf, sizeof(buf), "hostname", p)) {
             pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
         }
@@ -1622,7 +1651,7 @@
     } else
 #endif
 #ifdef _WIN32
=2D    if (!strcmp(device, "tap")) {
+    if (!strncmp(device, "tap", 3)) {
         char ifname[64];
         if (get_param_value(ifname, sizeof(ifname), "ifname", p) <=3D 0) {
             fprintf(stderr, "tap: no interface name\n");
@@ -1633,7 +1662,7 @@
     } else
 #elif defined (_AIX)
 #else
=2D    if (!strcmp(device, "tap")) {
+    if (!strncmp(device, "tap", 3)) {
         char ifname[64];
         char setup_script[1024], down_script[1024];
         int fd;



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