1*b30d1939SAndy Fiddaman /***********************************************************************
2*b30d1939SAndy Fiddaman * *
3*b30d1939SAndy Fiddaman * This software is part of the ast package *
4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property *
5*b30d1939SAndy Fiddaman * and is licensed under the *
6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 *
7*b30d1939SAndy Fiddaman * by AT&T Intellectual Property *
8*b30d1939SAndy Fiddaman * *
9*b30d1939SAndy Fiddaman * A copy of the License is available at *
10*b30d1939SAndy Fiddaman * http://www.eclipse.org/org/documents/epl-v10.html *
11*b30d1939SAndy Fiddaman * (with md5 checksum b35adb5213ca9657e911e9befb180842) *
12*b30d1939SAndy Fiddaman * *
13*b30d1939SAndy Fiddaman * Information and Software Systems Research *
14*b30d1939SAndy Fiddaman * AT&T Research *
15*b30d1939SAndy Fiddaman * Florham Park NJ *
16*b30d1939SAndy Fiddaman * *
17*b30d1939SAndy Fiddaman * Glenn Fowler <gsf@research.att.com> *
18*b30d1939SAndy Fiddaman * David Korn <dgk@research.att.com> *
19*b30d1939SAndy Fiddaman * Phong Vo <kpv@research.att.com> *
20*b30d1939SAndy Fiddaman * *
21*b30d1939SAndy Fiddaman ***********************************************************************/
22*b30d1939SAndy Fiddaman #pragma prototyped
23*b30d1939SAndy Fiddaman /*
24*b30d1939SAndy Fiddaman * Glenn Fowler
25*b30d1939SAndy Fiddaman * AT&T Bell Laboratories
26*b30d1939SAndy Fiddaman *
27*b30d1939SAndy Fiddaman * uid name -> number
28*b30d1939SAndy Fiddaman */
29*b30d1939SAndy Fiddaman
30*b30d1939SAndy Fiddaman #if defined(__STDPP__directive) && defined(__STDPP__hide)
31*b30d1939SAndy Fiddaman __STDPP__directive pragma pp:hide getpwnam getpwuid
32*b30d1939SAndy Fiddaman #else
33*b30d1939SAndy Fiddaman #define getpwnam ______getpwnam
34*b30d1939SAndy Fiddaman #define getpwuid ______getpwuid
35*b30d1939SAndy Fiddaman #endif
36*b30d1939SAndy Fiddaman
37*b30d1939SAndy Fiddaman #include <ast.h>
38*b30d1939SAndy Fiddaman #include <cdt.h>
39*b30d1939SAndy Fiddaman #include <pwd.h>
40*b30d1939SAndy Fiddaman
41*b30d1939SAndy Fiddaman #if defined(__STDPP__directive) && defined(__STDPP__hide)
42*b30d1939SAndy Fiddaman __STDPP__directive pragma pp:nohide getpwnam getpwuid
43*b30d1939SAndy Fiddaman #else
44*b30d1939SAndy Fiddaman #undef getpwnam
45*b30d1939SAndy Fiddaman #undef getpwuid
46*b30d1939SAndy Fiddaman #endif
47*b30d1939SAndy Fiddaman
48*b30d1939SAndy Fiddaman extern struct passwd* getpwnam(const char*);
49*b30d1939SAndy Fiddaman extern struct passwd* getpwuid(uid_t);
50*b30d1939SAndy Fiddaman
51*b30d1939SAndy Fiddaman typedef struct Id_s
52*b30d1939SAndy Fiddaman {
53*b30d1939SAndy Fiddaman Dtlink_t link;
54*b30d1939SAndy Fiddaman int id;
55*b30d1939SAndy Fiddaman char name[1];
56*b30d1939SAndy Fiddaman } Id_t;
57*b30d1939SAndy Fiddaman
58*b30d1939SAndy Fiddaman /*
59*b30d1939SAndy Fiddaman * return uid number given uid name
60*b30d1939SAndy Fiddaman * -1 on first error for a given name
61*b30d1939SAndy Fiddaman * -2 on subsequent errors for a given name
62*b30d1939SAndy Fiddaman */
63*b30d1939SAndy Fiddaman
64*b30d1939SAndy Fiddaman int
struid(const char * name)65*b30d1939SAndy Fiddaman struid(const char* name)
66*b30d1939SAndy Fiddaman {
67*b30d1939SAndy Fiddaman register Id_t* ip;
68*b30d1939SAndy Fiddaman register struct passwd* pw;
69*b30d1939SAndy Fiddaman int id;
70*b30d1939SAndy Fiddaman char* e;
71*b30d1939SAndy Fiddaman
72*b30d1939SAndy Fiddaman static Dt_t* dict;
73*b30d1939SAndy Fiddaman static Dtdisc_t disc;
74*b30d1939SAndy Fiddaman
75*b30d1939SAndy Fiddaman if (!dict)
76*b30d1939SAndy Fiddaman {
77*b30d1939SAndy Fiddaman disc.key = offsetof(Id_t, name);
78*b30d1939SAndy Fiddaman dict = dtopen(&disc, Dtset);
79*b30d1939SAndy Fiddaman }
80*b30d1939SAndy Fiddaman else if (ip = (Id_t*)dtmatch(dict, name))
81*b30d1939SAndy Fiddaman return ip->id;
82*b30d1939SAndy Fiddaman if (pw = getpwnam(name))
83*b30d1939SAndy Fiddaman id = pw->pw_uid;
84*b30d1939SAndy Fiddaman else
85*b30d1939SAndy Fiddaman {
86*b30d1939SAndy Fiddaman id = strtol(name, &e, 0);
87*b30d1939SAndy Fiddaman #if _WINIX
88*b30d1939SAndy Fiddaman if (!*e)
89*b30d1939SAndy Fiddaman {
90*b30d1939SAndy Fiddaman if (!getpwuid(id))
91*b30d1939SAndy Fiddaman id = -1;
92*b30d1939SAndy Fiddaman }
93*b30d1939SAndy Fiddaman else if (streq(name, "root") && (pw = getpwnam("Administrator")))
94*b30d1939SAndy Fiddaman id = pw->pw_uid;
95*b30d1939SAndy Fiddaman else
96*b30d1939SAndy Fiddaman id = -1;
97*b30d1939SAndy Fiddaman #else
98*b30d1939SAndy Fiddaman if (*e || !getpwuid(id))
99*b30d1939SAndy Fiddaman id = -1;
100*b30d1939SAndy Fiddaman #endif
101*b30d1939SAndy Fiddaman }
102*b30d1939SAndy Fiddaman if (dict && (ip = newof(0, Id_t, 1, strlen(name))))
103*b30d1939SAndy Fiddaman {
104*b30d1939SAndy Fiddaman strcpy(ip->name, name);
105*b30d1939SAndy Fiddaman ip->id = id >= 0 ? id : -2;
106*b30d1939SAndy Fiddaman dtinsert(dict, ip);
107*b30d1939SAndy Fiddaman }
108*b30d1939SAndy Fiddaman return id;
109*b30d1939SAndy Fiddaman }
110