1 #include <sys/types.h>
2 #include <pwd.h>
3 #include <grp.h>
4 #include "uidgid.h"
5 #include "str.h"
6 #include "scan.h"
7
8 /* user */
uidgid_get(struct uidgid * u,char * ug)9 unsigned int uidgid_get(struct uidgid *u, char *ug) {
10 struct passwd *pwd =0;
11
12 if (! (pwd =getpwnam(ug))) return(0);
13 u->gid[0] =pwd->pw_gid; u->gids =1;
14 u->uid =pwd->pw_uid;
15 return(1);
16 }
17
18 /* uid:gid[:gid[:gid]...] */
uidgids_set(struct uidgid * u,char * ug)19 unsigned int uidgids_set(struct uidgid *u, char *ug) {
20 unsigned long id;
21 int i;
22
23 if (*(ug +=scan_ulong(ug, &id)) != ':') return(0);
24 u->uid =(uid_t)id;
25 ++ug;
26 for (i =0; i < 60; ++i, ++ug) {
27 ug +=scan_ulong(ug, &id);
28 u->gid[i] =(gid_t)id;
29 if (*ug != ':') { ++i; break; }
30 }
31 u->gid[i] =0;
32 u->gids =i;
33 if (*ug) return(0);
34 return(1);
35 }
36
37 /* [:]user[:group[:group]...] */
uidgids_get(struct uidgid * u,char * ug)38 unsigned int uidgids_get(struct uidgid *u, char *ug) {
39 char *g =0;
40 struct passwd *pwd =0;
41 struct group *gr =0;
42 int i, d =0;
43
44 if (*ug == ':') return(uidgids_set(u, ug +1));
45 if (ug[(d =str_chr(ug, ':'))] == ':') {
46 ug[d] =0;
47 g =ug +d +1;
48 }
49 if (! (pwd =getpwnam(ug))) { if (g) ug[d] =':'; return(0); }
50 u->uid =pwd->pw_uid;
51 if (! g) {
52 u->gid[0] =pwd->pw_gid;
53 u->gids =1;
54 return(1);
55 }
56 ug[d] =':';
57 for (i =0; i < 60; ++i) {
58 if (g[(d =str_chr(g, ':'))] == ':') {
59 g[d] =0;
60 if (! (gr =getgrnam(g))) { g[d] =':'; return(0); }
61 g[d] =':';
62 u->gid[i] =gr->gr_gid;
63 g +=d +1;
64 }
65 else {
66 if (! (gr =getgrnam(g))) return(0);
67 u->gid[i++] =gr->gr_gid;
68 break;
69 }
70 }
71 u->gid[i] =0;
72 u->gids =i;
73 return(1);
74 }
75