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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libldetect.h"
#include "libldetect-private.h"
#include "common.h"
static int usb_find_modules(struct pciusb_entries entries) {
return pciusb_find_modules(entries, "usbtable", 1 /* no_subid */);
}
extern struct pciusb_entries usb_probe(void) {
FILE *f;
char buf[512];
int line;
const char *file = "/proc/bus/usb/devices";
struct pciusb_entry t[100];
struct pciusb_entries r;
struct pciusb_entry *e = NULL;
if (!(f = fopen(file, "r"))) exit(1);
for(r.nb = line = 0; fgets(buf, sizeof(buf) - 1, f) && r.nb < psizeof(t); line++) {
if (buf[0] == 'P') {
e = &t[r.nb++];
pciusb_initialize(e);
if (sscanf(buf, "P: Vendor=%hx ProdID=%hx", &e->vendor, &e->device) != 2) {
fprintf(stderr, "%s %d: unknown ``P'' line\n", file, line);
pciusb_initialize(e);
}
} else if (e && buf[0] == 'I' && e->class == 0) {
int class, sub, prot = 0;
if (sscanf(buf, "I: If#=%*2d Alt=%*2d #EPs=%*2d Cls=%02x(%*5c) Sub=%02x Prot=%02x", &class, &sub, &prot) == 3) {
e->class = (class * 0x100 + sub) * 0x100 + prot;
} else {
fprintf(stderr, "%s %d: unknown ``I'' line\n", file, line);
}
} else if (e && buf[0] == 'S') {
int offset;
char dummy;
if (sscanf(buf, "S: Manufacturer=%n%c", &offset, &dummy) == 1) {
buf[strlen(buf) - 1] = '|'; /* replacing '\n' by '|' */
e->text = strdup(buf + offset);
} else if (sscanf(buf, "S: Product=%n%c", &offset, &dummy) == 1) {
if (!e->text) e->text = strdup("Unknown|");
buf[strlen(buf) - 1] = 0; /* removing '\n' */
e->text = realloc(e->text, strlen(e->text) + strlen(buf + offset) + 1);
strcat(e->text, buf + offset);
}
}
}
fclose(f);
r.entries = memdup(t, sizeof(struct pciusb_entry) * r.nb);
usb_find_modules(r);
return r;
}
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