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more fileattr stuff

This commit is contained in:
Doug MacEachern 2005-08-07 05:38:23 +00:00
parent 3110870743
commit 7345b920ae
1 changed files with 85 additions and 0 deletions
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85
src/sigar_fileinfo.c
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@ -144,6 +144,9 @@ SIGAR_DECLARE(int)sigar_file_attrs_mode_get(sigar_uint64_t permissions)
#ifdef WIN32
#include <accctrl.h>
#include <aclapi.h>
static void fillin_fileattrs(sigar_file_attrs_t *finfo,
WIN32_FILE_ATTRIBUTE_DATA *wininfo,
int linkinfo)
@ -171,6 +174,86 @@ static void fillin_fileattrs(sigar_file_attrs_t *finfo,
}
}
static sigar_uint64_t convert_perms(ACCESS_MASK acc, sigar_uint64_t scope)
{
sigar_uint64_t perms = 0;
if (acc & FILE_EXECUTE) {
perms |= SIGAR_WEXECUTE;
}
if (acc & FILE_WRITE_DATA) {
perms |= SIGAR_WWRITE;
}
if (acc & FILE_READ_DATA) {
perms |= SIGAR_WREAD;
}
return (perms << scope);
}
static int get_security_info(sigar_t *sigar,
const char *file,
sigar_file_attrs_t *fileattrs)
{
DWORD retval;
PSID user = NULL, group = NULL, world = NULL;
PACL dacl = NULL;
PSECURITY_DESCRIPTOR pdesc = NULL;
SECURITY_INFORMATION sinfo =
OWNER_SECURITY_INFORMATION |
GROUP_SECURITY_INFORMATION |
DACL_SECURITY_INFORMATION;
TRUSTEE ident = {NULL, NO_MULTIPLE_TRUSTEE, TRUSTEE_IS_SID};
ACCESS_MASK acc;
SID_IDENTIFIER_AUTHORITY auth = SECURITY_WORLD_SID_AUTHORITY;
retval = GetNamedSecurityInfo((char *)file,
SE_FILE_OBJECT,
sinfo,
&user,
&group,
&dacl,
NULL,
&pdesc);
if (retval != ERROR_SUCCESS) {
return retval;
}
if (!AllocateAndInitializeSid(&auth, 1, SECURITY_WORLD_RID,
0, 0, 0, 0, 0, 0, 0, &world))
{
world = NULL;
}
ident.TrusteeType = TRUSTEE_IS_USER;
ident.ptstrName = user;
if (GetEffectiveRightsFromAcl(dacl, &ident, &acc) == ERROR_SUCCESS) {
fileattrs->permissions |= convert_perms(acc, 8);
}
ident.TrusteeType = TRUSTEE_IS_GROUP;
ident.ptstrName = group;
if (GetEffectiveRightsFromAcl(dacl, &ident, &acc) == ERROR_SUCCESS) {
fileattrs->permissions |= convert_perms(acc, 4);
}
if (world) {
ident.TrusteeType = TRUSTEE_IS_WELL_KNOWN_GROUP;
ident.ptstrName = world;
if (GetEffectiveRightsFromAcl(dacl, &ident, &acc) == ERROR_SUCCESS) {
fileattrs->permissions |= convert_perms(acc, 0);
}
}
if (world) {
FreeSid(world);
}
LocalFree(pdesc);
return SIGAR_OK;
}
static int fileattrs_get(sigar_t *sigar,
const char *file,
sigar_file_attrs_t *fileattrs,
@ -215,6 +298,8 @@ static int fileattrs_get(sigar_t *sigar,
CloseHandle(handle);
}
get_security_info(sigar, file, fileattrs);
return SIGAR_OK;
}