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Set the file's gid to -1 if we don't have permissions to set it.

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This commit is contained in:
Wayne Davison
2004-01-02 16:51:54 +00:00
parent 6744b62ddd
commit 5b540e86a4
1 changed files with 39 additions and 7 deletions
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46
uidlist.c
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@@ -106,6 +106,40 @@ static uid_t match_uid(uid_t uid)
return last_out;
}
static int is_in_group(gid_t gid)
{
#ifdef GETGROUPS_T
static gid_t last_in = (gid_t) -2, last_out;
static int ngroups = -2;
static GETGROUPS_T *gidset;
int n;
if (gid == last_in)
return last_out;
if (ngroups < -1) {
/* treat failure (-1) as if not member of any group */
ngroups = getgroups(0, 0);
if (ngroups > 0) {
gidset = new_array(GETGROUPS_T, ngroups);
ngroups = getgroups(ngroups, gidset);
}
}
last_in = gid;
last_out = 0;
for (n = 0; n < ngroups; n++) {
if (gidset[n] == gid) {
last_out = 1;
break;
}
}
return last_out;
#else
return 0;
#endif
}
static gid_t match_gid(gid_t gid)
{
static gid_t last_in, last_out;
@@ -126,7 +160,7 @@ static gid_t match_gid(gid_t gid)
if (am_root)
last_out = gid;
else
last_out = (gid_t) -1;
last_out = (gid_t)-1;
return last_out;
}
@@ -238,8 +272,7 @@ void recv_uid_list(int f, struct file_list *flist)
if (preserve_uid) {
/* read the uid list */
list = uidlist;
id = read_int(f);
while (id != 0) {
while ((id = read_int(f)) != 0) {
int len = read_byte(f);
name = new_array(char, len+1);
if (!name) out_of_memory("recv_uid_list");
@@ -253,7 +286,6 @@ void recv_uid_list(int f, struct file_list *flist)
}
list->id2 = map_uid(id, name);
free(name);
id = read_int(f);
}
}
@@ -261,8 +293,7 @@ void recv_uid_list(int f, struct file_list *flist)
if (preserve_gid) {
/* and the gid list */
list = gidlist;
id = read_int(f);
while (id != 0) {
while ((id = read_int(f)) != 0) {
int len = read_byte(f);
name = new_array(char, len+1);
if (!name) out_of_memory("recv_uid_list");
@@ -275,8 +306,9 @@ void recv_uid_list(int f, struct file_list *flist)
list = list->next;
}
list->id2 = map_gid(id, name);
if (!am_root && !is_in_group(list->id2))
list->id2 = (gid_t)-1;
free(name);
id = read_int(f);
}
}