experiments/clixon
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* Backend daemon drops privileges after initialization (to not run as root)

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* New config option `CLICON_USER` with default value `clicon`
  * Can also be set with `-U <user>` clixon_backend command-line option
This commit is contained in:
Olof hagsand 2019-09-11 21:24:14 +02:00
parent 3806f7652e
commit 3d5abb77f9
60 changed files with 238 additions and 93 deletions
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38
lib/src/clixon_file.c
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@ -219,9 +219,10 @@ clicon_file_copy(char *src,
* @retval -1 Error. or not found
*/
int
group_name2gid(char *name,
gid_t *gid)
group_name2gid(const char *name,
gid_t *gid)
{
int retval = -1;
char buf[1024];
struct group g0;
struct group *gr = &g0;
@ -231,14 +232,39 @@ group_name2gid(char *name,
/* This leaks memory in ubuntu */
if (getgrnam_r(name, gr, buf, sizeof(buf), &gtmp) < 0){
clicon_err(OE_UNIX, errno, "getgrnam_r(%s)", name);
return -1;
goto done;
}
if (gtmp == NULL){
clicon_err(OE_UNIX, 0, "No such group: %s", name);
fprintf(stderr, "No such group %s\n", name);
return -1;
goto done;
}
if (gid)
*gid = gr->gr_gid;
return 0;
retval = 0;
done:
return retval;
}
int
name2uid(const char *name,
uid_t *uid)
{
int retval = -1;
char buf[1024];
struct passwd pwbuf;
struct passwd *pwbufp = NULL;
if (getpwnam_r(name, &pwbuf, buf, sizeof(buf), &pwbufp) != 0){
clicon_err(OE_UNIX, errno, "getpwnam_r(%s)", name);
goto done;
}
if (pwbufp == NULL){
clicon_err(OE_UNIX, 0, "No such user: %s", name);
goto done;
}
if (uid)
*uid = pwbufp->pw_uid;
retval = 0;
done:
return retval;
}