/*
* Write a.out or ELF header.
*/
static void
puthdr(int fd, struct hdr *hdr)
{
struct exec ex;
struct elfh eh;
switch (hdr->fmt) {
case F_AOUT:
memset(&ex, 0, sizeof(ex));
N_SETMAGIC(ex, ZMAGIC, MID_I386, 0);
hdr->text = N_ALIGN(ex, hdr->text);
ex.a_text = htole32(hdr->text);
hdr->data = N_ALIGN(ex, hdr->data);
ex.a_data = htole32(hdr->data);
ex.a_entry = htole32(hdr->entry);
writex(fd, &ex, sizeof(ex));
hdr->size = N_ALIGN(ex, sizeof(ex));
seekx(fd, hdr->size);
break;
case F_ELF:
eh = elfhdr;
eh.e.e_entry = htole32(hdr->entry);
eh.p[0].p_vaddr = eh.p[0].p_paddr = htole32(hdr->org);
eh.p[0].p_filesz = eh.p[0].p_memsz = htole32(hdr->text);
eh.p[1].p_offset = htole32(le32toh(eh.p[0].p_offset) +
le32toh(eh.p[0].p_filesz));
eh.p[1].p_vaddr = eh.p[1].p_paddr =
htole32(align(le32toh(eh.p[0].p_paddr) + le32toh(eh.p[0].p_memsz),
4096));
eh.p[1].p_filesz = eh.p[1].p_memsz = htole32(hdr->data);
eh.sh[2].sh_addr = eh.p[0].p_vaddr;
eh.sh[2].sh_offset = eh.p[0].p_offset;
eh.sh[2].sh_size = eh.p[0].p_filesz;
eh.sh[3].sh_addr = eh.p[1].p_vaddr;
eh.sh[3].sh_offset = eh.p[1].p_offset;
eh.sh[3].sh_size = eh.p[1].p_filesz;
writex(fd, &eh, sizeof(eh));
hdr->size = sizeof(eh);
}
}
static __initdata char *message;
static void __init error(char *x)
{
if (!message)
message = x;
}
/* link hash */
#define N_ALIGN(len) ((((len) + 1) & ~3) + 2)
static __initdata struct hash {
int ino, minor, major;
mode_t mode;
struct hash *next;
char name[N_ALIGN(PATH_MAX)];
} *head[32];
static inline int hash(int major, int minor, int ino)
{
unsigned long tmp = ino + minor + (major << 3);
tmp += tmp >> 5;
return tmp & 31;
}
static char __init *find_link(int major, int minor, int ino,
mode_t mode, char *name)
{
struct hash **p, *q;
for (p = head + hash(major, minor, ino); *p; p = &(*p)->next) {
if ((*p)->ino != ino)
int
libusb_get_config_descriptor(libusb_device *dev, uint8_t config_index,
struct libusb_config_descriptor **config)
{
struct libusb20_device *pdev;
struct libusb20_config *pconf;
struct libusb20_interface *pinf;
struct libusb20_endpoint *pend;
struct libusb_config_descriptor *pconfd;
struct libusb_interface_descriptor *ifd;
struct libusb_endpoint_descriptor *endd;
uint8_t *pextra;
uint16_t nextra;
uint8_t nif;
uint8_t nep;
uint8_t nalt;
uint8_t i;
uint8_t j;
uint8_t k;
if (dev == NULL || config == NULL)
return (LIBUSB_ERROR_INVALID_PARAM);
*config = NULL;
pdev = dev->os_priv;
pconf = libusb20_dev_alloc_config(pdev, config_index);
if (pconf == NULL)
return (LIBUSB_ERROR_NOT_FOUND);
nalt = nif = pconf->num_interface;
nep = 0;
nextra = N_ALIGN(pconf->extra.len);
for (i = 0; i < nif; i++) {
pinf = pconf->interface + i;
nextra += N_ALIGN(pinf->extra.len);
nep += pinf->num_endpoints;
k = pinf->num_endpoints;
pend = pinf->endpoints;
while (k--) {
nextra += N_ALIGN(pend->extra.len);
pend++;
}
j = pinf->num_altsetting;
nalt += pinf->num_altsetting;
pinf = pinf->altsetting;
while (j--) {
nextra += N_ALIGN(pinf->extra.len);
nep += pinf->num_endpoints;
k = pinf->num_endpoints;
pend = pinf->endpoints;
while (k--) {
nextra += N_ALIGN(pend->extra.len);
pend++;
}
pinf++;
}
}
nextra = nextra +
(1 * sizeof(libusb_config_descriptor)) +
(nif * sizeof(libusb_interface)) +
(nalt * sizeof(libusb_interface_descriptor)) +
(nep * sizeof(libusb_endpoint_descriptor));
nextra = N_ALIGN(nextra);
pconfd = malloc(nextra);
if (pconfd == NULL) {
free(pconf);
return (LIBUSB_ERROR_NO_MEM);
}
/* make sure memory is initialised */
memset(pconfd, 0, nextra);
pconfd->interface = (libusb_interface *) (pconfd + 1);
ifd = (libusb_interface_descriptor *) (pconfd->interface + nif);
endd = (libusb_endpoint_descriptor *) (ifd + nalt);
pextra = (uint8_t *)(endd + nep);
/* fill in config descriptor */
pconfd->bLength = pconf->desc.bLength;
pconfd->bDescriptorType = pconf->desc.bDescriptorType;
pconfd->wTotalLength = pconf->desc.wTotalLength;
pconfd->bNumInterfaces = pconf->desc.bNumInterfaces;
pconfd->bConfigurationValue = pconf->desc.bConfigurationValue;
pconfd->iConfiguration = pconf->desc.iConfiguration;
pconfd->bmAttributes = pconf->desc.bmAttributes;
pconfd->MaxPower = pconf->desc.bMaxPower;
if (pconf->extra.len != 0) {
pconfd->extra_length = pconf->extra.len;
pconfd->extra = pextra;
memcpy(pextra, pconf->extra.ptr, pconfd->extra_length);
pextra += N_ALIGN(pconfd->extra_length);
}
/* setup all interface and endpoint pointers */
for (i = 0; i < nif; i++) {
pconfd->interface[i].altsetting = ifd;
ifd->endpoint = endd;
endd += pconf->interface[i].num_endpoints;
ifd++;
for (j = 0; j < pconf->interface[i].num_altsetting; j++) {
ifd->endpoint = endd;
endd += pconf->interface[i].altsetting[j].num_endpoints;
ifd++;
}
}
/* fill in all interface and endpoint data */
for (i = 0; i < nif; i++) {
pinf = &pconf->interface[i];
pconfd->interface[i].num_altsetting = pinf->num_altsetting + 1;
for (j = 0; j < pconfd->interface[i].num_altsetting; j++) {
if (j != 0)
pinf = &pconf->interface[i].altsetting[j - 1];
ifd = &pconfd->interface[i].altsetting[j];
ifd->bLength = pinf->desc.bLength;
ifd->bDescriptorType = pinf->desc.bDescriptorType;
ifd->bInterfaceNumber = pinf->desc.bInterfaceNumber;
ifd->bAlternateSetting = pinf->desc.bAlternateSetting;
ifd->bNumEndpoints = pinf->desc.bNumEndpoints;
ifd->bInterfaceClass = pinf->desc.bInterfaceClass;
ifd->bInterfaceSubClass = pinf->desc.bInterfaceSubClass;
ifd->bInterfaceProtocol = pinf->desc.bInterfaceProtocol;
ifd->iInterface = pinf->desc.iInterface;
if (pinf->extra.len != 0) {
ifd->extra_length = pinf->extra.len;
ifd->extra = pextra;
memcpy(pextra, pinf->extra.ptr, pinf->extra.len);
pextra += N_ALIGN(pinf->extra.len);
}
for (k = 0; k < pinf->num_endpoints; k++) {
pend = &pinf->endpoints[k];
endd = &ifd->endpoint[k];
endd->bLength = pend->desc.bLength;
endd->bDescriptorType = pend->desc.bDescriptorType;
endd->bEndpointAddress = pend->desc.bEndpointAddress;
endd->bmAttributes = pend->desc.bmAttributes;
endd->wMaxPacketSize = pend->desc.wMaxPacketSize;
endd->bInterval = pend->desc.bInterval;
endd->bRefresh = pend->desc.bRefresh;
endd->bSynchAddress = pend->desc.bSynchAddress;
if (pend->extra.len != 0) {
endd->extra_length = pend->extra.len;
endd->extra = pextra;
memcpy(pextra, pend->extra.ptr, pend->extra.len);
pextra += N_ALIGN(pend->extra.len);
}
}
}
}
free(pconf);
*config = pconfd;
return (0); /* success */
}
