#include "includes.h"
static void disk_norm(BOOL small_query, SMB_BIG_UINT *bsize,SMB_BIG_UINT *dfree,SMB_BIG_UINT *dsize)
{
SMB_BIG_UINT maxdisksize = lp_maxdisksize();
if (maxdisksize) {
maxdisksize = ((maxdisksize*1024)/(*bsize))*1024;
if (*dsize > maxdisksize) *dsize = maxdisksize;
if (*dfree > maxdisksize) *dfree = maxdisksize-1;
}
while (*dfree > WORDMAX || *dsize > WORDMAX || *bsize < 512) {
*dfree /= 2;
*dsize /= 2;
*bsize *= 2;
if(small_query) {
if (*bsize > (WORDMAX*512)) {
*bsize = (WORDMAX*512);
if (*dsize > WORDMAX)
*dsize = WORDMAX;
if (*dfree > WORDMAX)
*dfree = WORDMAX;
break;
}
}
}
}
static SMB_BIG_UINT disk_free(const char *path, BOOL small_query,
SMB_BIG_UINT *bsize,SMB_BIG_UINT *dfree,SMB_BIG_UINT *dsize)
{
int dfree_retval;
SMB_BIG_UINT dfree_q = 0;
SMB_BIG_UINT bsize_q = 0;
SMB_BIG_UINT dsize_q = 0;
char *dfree_command;
(*dfree) = (*dsize) = 0;
(*bsize) = 512;
dfree_command = lp_dfree_command();
if (dfree_command && *dfree_command) {
const char *p;
char **lines;
pstring syscmd;
slprintf(syscmd, sizeof(syscmd)-1, "%s %s", dfree_command, path);
DEBUG (3, ("disk_free: Running command %s\n", syscmd));
lines = file_lines_pload(syscmd, NULL);
if (lines) {
char *line = lines[0];
DEBUG (3, ("Read input from dfree, \"%s\"\n", line));
*dsize = STR_TO_SMB_BIG_UINT(line, &p);
while (p && *p && isspace(*p))
p++;
if (p && *p)
*dfree = STR_TO_SMB_BIG_UINT(p, &p);
while (p && *p && isspace(*p))
p++;
if (p && *p)
*bsize = STR_TO_SMB_BIG_UINT(p, NULL);
else
*bsize = 1024;
file_lines_free(lines);
DEBUG (3, ("Parsed output of dfree, dsize=%u, dfree=%u, bsize=%u\n",
(unsigned int)*dsize, (unsigned int)*dfree, (unsigned int)*bsize));
if (!*dsize)
*dsize = 2048;
if (!*dfree)
*dfree = 1024;
} else {
DEBUG (0, ("disk_free: sys_popen() failed for command %s. Error was : %s\n",
syscmd, strerror(errno) ));
sys_fsusage(path, dfree, dsize);
}
} else
sys_fsusage(path, dfree, dsize);
if (disk_quotas(path, &bsize_q, &dfree_q, &dsize_q)) {
(*bsize) = bsize_q;
(*dfree) = MIN(*dfree,dfree_q);
(*dsize) = MIN(*dsize,dsize_q);
}
if (*bsize < 256) {
DEBUG(5,("disk_free:Warning: bsize == %d < 256 . Changing to assumed correct bsize = 512\n",(int)*bsize));
*bsize = 512;
}
if ((*dsize)<1) {
static int done;
if (!done) {
DEBUG(0,("WARNING: dfree is broken on this system\n"));
done=1;
}
*dsize = 20*1024*1024/(*bsize);
*dfree = MAX(1,*dfree);
}
disk_norm(small_query,bsize,dfree,dsize);
if ((*bsize) < 1024) {
dfree_retval = (*dfree)/(1024/(*bsize));
} else {
dfree_retval = ((*bsize)/1024)*(*dfree);
}
return(dfree_retval);
}
SMB_BIG_UINT sys_disk_free(const char *path, BOOL small_query,
SMB_BIG_UINT *bsize,SMB_BIG_UINT *dfree,SMB_BIG_UINT *dsize)
{
return disk_free(path,small_query, bsize,dfree,dsize);
}