// restore nvram from file
int nvram_restore(char *file, char *buf)
{
FILE *fp;
char header[8], *p, *v;
unsigned long count, *filelen;
if ((fp=fopen(file, "r+"))==NULL) return -1;
count = fread(header, 1, 8, fp);
if (count>=8 && strncmp(header, PROFILE_HEADER, 4)==0)
{
filelen = (unsigned long *)(header + 4);
count = fread(buf, 1, *filelen, fp);
}
fclose(fp);
p = buf;
while (*p)
{
//printf("nv:%s\n", p);
v = strchr(p, '=');
if (v!=NULL)
{
*v++ = '\0' /*eric--NULL*/;
if (issyspara(p))
{
nvram_set(p, v);
}
p = v + strlen(v) + 1;
}
else
{
nvram_unset(p);
p = p + 1;
}
}
nvram_set("x_Setting", "1");
return 0;
}
int nvram_restore_new(char *file, char *buf)
{
FILE *fp;
char header[8], *p, *v;
unsigned long count, filelen, *filelenptr, i;
unsigned char rand, *randptr;
if ((fp = fopen(file, "r+")) == NULL) return -1;
count = fread(header, 1, 8, fp);
if (count>=8 && strncmp(header, PROFILE_HEADER, 4) == 0)
{
filelenptr = (unsigned long *)(header + 4);
#ifdef ASUS_DEBUG
fprintf(stderr, "restoring original text cfg of length %x\n", *filelenptr);
#endif
fread(buf, 1, *filelenptr, fp);
}
else if (count>=8 && strncmp(header, PROFILE_HEADER_NEW, 4) == 0)
{
filelenptr = (unsigned long *)(header + 4);
filelen = *filelenptr & 0xffffff;
#ifdef ASUS_DEBUG
fprintf(stderr, "restoring non-text cfg of length %x\n", filelen);
#endif
randptr = (unsigned char *)(header + 7);
rand = *randptr;
#ifdef ASUS_DEBUG
fprintf(stderr, "non-text cfg random number %x\n", rand);
#endif
count = fread(buf, 1, filelen, fp);
#ifdef ASUS_DEBUG
fprintf(stderr, "non-text cfg count %x\n", count);
#endif
for (i = 0; i < count; i++)
{
if ((unsigned char) buf[i] > ( 0xfd - 0x1)){
/* e.g.: to skip the case: 0x61 0x62 0x63 0x00 0x00 0x61 0x62 0x63 */
if(i > 0 && buf[i-1] != 0x0)
buf[i] = 0x0;
}
else
buf[i] = 0xff + rand - buf[i];
}
#ifdef ASUS_DEBUG
for (i = 0; i < count; i++)
{
if (i % 16 == 0) fprintf(stderr, "\n");
fprintf(stderr, "%2x ", (unsigned char) buf[i]);
}
for (i = 0; i < count; i++)
{
if (i % 16 == 0) fprintf(stderr, "\n");
fprintf(stderr, "%c", buf[i]);
}
#endif
}
else
{
fclose(fp);
return 0;
}
fclose(fp);
p = buf;
while (*p)
{
#if 1
/* e.g.: to skip the case: 00 2e 30 2e 32 38 00 ff 77 61 6e */
if(*p == NULL || *p < 32 || *p > 127 ){
p = p + 1;
continue;
}
#endif
v = strchr(p, '=');
if (v != NULL)
{
*v++ = '\0';
if (issyspara(p))
nvram_set(p, v);
p = v + strlen(v) + 1;
}
else
{
nvram_unset(p);
p = p + 1;
}
}
return 0;
}