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dm: use strncpy to replace strcpy

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Tracked-On: #2133
Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com>
Reviewed-by: Yonghua Huang <yonghua.huang@intel.com>
This commit is contained in:
Shuo A Liu 2018-12-25 11:03:51 +08:00 committed by wenlingz
parent b3ad44d4c1
commit 4b3ebf69c7
6 changed files with 9 additions and 9 deletions
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2
devicemodel/core/sw_load_bzimage.c
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@ -318,7 +318,7 @@ acrn_sw_load_bzimage(struct vmctx *ctx)
ctx->bsp_regs.vcpu_id = 0; ctx->bsp_regs.vcpu_id = 0;
if (with_bootargs) { if (with_bootargs) {
strcpy(ctx->baseaddr + BOOTARGS_LOAD_OFF(ctx), get_bootargs()); strncpy(ctx->baseaddr + BOOTARGS_LOAD_OFF(ctx), get_bootargs(), STR_LEN);
printf("SW_LOAD: bootargs copied to guest 0x%lx\n", printf("SW_LOAD: bootargs copied to guest 0x%lx\n",
BOOTARGS_LOAD_OFF(ctx)); BOOTARGS_LOAD_OFF(ctx));
} }

2
devicemodel/core/sw_load_vsbl.c
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@ -274,7 +274,7 @@ acrn_sw_load_vsbl(struct vmctx *ctx)
vsbl_para->acpi_table_size = get_acpi_table_length(); vsbl_para->acpi_table_size = get_acpi_table_length();
if (with_bootargs) { if (with_bootargs) {
strcpy(ctx->baseaddr + BOOTARGS_OFF(ctx), get_bootargs()); strncpy(ctx->baseaddr + BOOTARGS_OFF(ctx), get_bootargs(), STR_LEN);
vsbl_para->bootargs_address = BOOTARGS_OFF(ctx); vsbl_para->bootargs_address = BOOTARGS_OFF(ctx);
} else { } else {
vsbl_para->bootargs_address = 0; vsbl_para->bootargs_address = 0;

2
devicemodel/core/vmmapi.c
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@ -122,7 +122,7 @@ vm_create(const char *name, uint64_t req_buf)
ctx->fd = devfd; ctx->fd = devfd;
ctx->lowmem_limit = 2 * GB; ctx->lowmem_limit = 2 * GB;
ctx->name = (char *)(ctx + 1); ctx->name = (char *)(ctx + 1);
strcpy(ctx->name, name); strncpy(ctx->name, name, strnlen(name, PATH_MAX) + 1);
/* Set trusty enable flag */ /* Set trusty enable flag */
if (trusty_enabled) if (trusty_enabled)

2
devicemodel/hw/pci/virtio/virtio_hdcp.c
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@ -347,7 +347,7 @@ connect_hdcp_daemon()
memset(&addr, 0, sizeof(addr)); memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX; addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, HDCP_SDK_SOCKET_PATH); strncpy(addr.sun_path, HDCP_SDK_SOCKET_PATH, sizeof(addr.sun_path));
ret = connect(fd, &addr, sizeof(struct sockaddr_un)); ret = connect(fd, &addr, sizeof(struct sockaddr_un));
if (ret < 0) { if (ret < 0) {

8
devicemodel/hw/pci/virtio/virtio_net.c
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@ -653,19 +653,19 @@ virtio_net_tap_open(char *devname)
return -1; return -1;
} }
strcpy(devname, ifr.ifr_name); strncpy(devname, ifr.ifr_name, IFNAMSIZ);
return tunfd; return tunfd;
} }
static void static void
virtio_net_tap_setup(struct virtio_net *net, char *devname) virtio_net_tap_setup(struct virtio_net *net, char *devname)
{ {
char tbuf[80 + 5]; /* room for "acrn_" prefix */ char tbuf[IFNAMSIZ];
int vhost_fd = -1; int vhost_fd = -1;
int rc; int rc;
rc = snprintf(tbuf, strnlen(devname, 79) + 6, "acrn_%s", devname); rc = snprintf(tbuf, IFNAMSIZ, "acrn_%s", devname);
if (rc < 0 || rc >= 85) /* give warning if error or truncation happens */ if (rc < 0 || rc >= IFNAMSIZ) /* give warning if error or truncation happens */
WPRINTF(("Fail to set tap device name %s\n", tbuf)); WPRINTF(("Fail to set tap device name %s\n", tbuf));
net->virtio_net_rx = virtio_net_tap_rx; net->virtio_net_rx = virtio_net_tap_rx;

2
devicemodel/hw/platform/tpm/tpm.c
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@ -50,7 +50,7 @@ int acrn_parse_vtpm2(char *arg)
sock_path = calloc(len + 1, 1); sock_path = calloc(len + 1, 1);
if (!sock_path) if (!sock_path)
return -1; return -1;
strcpy(sock_path, value); strncpy(sock_path, value, len + 1);
} }
return 0; return 0;