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usb-bus: use snprintf

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Avoid this warning from OpenBSD linker:
  LINK  i386-softmmu/qemu
../usb-bus.o(.text+0x27c): In function `usb_get_fw_dev_path':
/src/qemu/hw/usb-bus.c:294: warning: sprintf() is often misused,
please use snprintf()

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Blue Swirl 2011-01-23 08:48:41 +00:00 committed by Gerd Hoffmann
parent ee59e6b3bf
commit ea87e95f8f
1 changed files with 7 additions and 5 deletions
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12
hw/usb-bus.c
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@ -298,20 +298,22 @@ static char *usb_get_fw_dev_path(DeviceState *qdev)
{
USBDevice *dev = DO_UPCAST(USBDevice, qdev, qdev);
char *fw_path, *in;
int pos = 0;
ssize_t pos = 0, fw_len;
long nr;
fw_path = qemu_malloc(32 + strlen(dev->port->path) * 6);
fw_len = 32 + strlen(dev->port->path) * 6;
fw_path = qemu_malloc(fw_len);
in = dev->port->path;
while (true) {
while (fw_len - pos > 0) {
nr = strtol(in, &in, 10);
if (in[0] == '.') {
/* some hub between root port and device */
pos += sprintf(fw_path + pos, "hub@%ld/", nr);
pos += snprintf(fw_path + pos, fw_len - pos, "hub@%ld/", nr);
in++;
} else {
/* the device itself */
pos += sprintf(fw_path + pos, "%s@%ld", qdev_fw_name(qdev), nr);
pos += snprintf(fw_path + pos, fw_len - pos, "%s@%ld",
qdev_fw_name(qdev), nr);
break;
}
}