1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin * *
3da2e3ebdSchin * This software is part of the ast package *
4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property *
5da2e3ebdSchin * and is licensed under the *
6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 *
77c2fbfb3SApril Chin * by AT&T Intellectual Property *
8da2e3ebdSchin * *
9da2e3ebdSchin * 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) *
12da2e3ebdSchin * *
13da2e3ebdSchin * Information and Software Systems Research *
14da2e3ebdSchin * AT&T Research *
15da2e3ebdSchin * Florham Park NJ *
16da2e3ebdSchin * *
17da2e3ebdSchin * Glenn Fowler <gsf@research.att.com> *
18da2e3ebdSchin * David Korn <dgk@research.att.com> *
19da2e3ebdSchin * Phong Vo <kpv@research.att.com> *
20da2e3ebdSchin * *
21da2e3ebdSchin ***********************************************************************/
22da2e3ebdSchin #pragma prototyped
23da2e3ebdSchin
24da2e3ebdSchin /*
25da2e3ebdSchin * Glenn Fowler
26da2e3ebdSchin * AT&T Bell Laboratories
27da2e3ebdSchin *
28da2e3ebdSchin * return fs type string given stat
29da2e3ebdSchin */
30da2e3ebdSchin
31da2e3ebdSchin #include <ast.h>
32da2e3ebdSchin #include <ls.h>
33da2e3ebdSchin #include <mnt.h>
34da2e3ebdSchin
35da2e3ebdSchin #include "FEATURE/fs"
36da2e3ebdSchin
37da2e3ebdSchin #if _str_st_fstype
38da2e3ebdSchin
39da2e3ebdSchin char*
fmtfs(struct stat * st)40da2e3ebdSchin fmtfs(struct stat* st)
41da2e3ebdSchin {
42da2e3ebdSchin return st->st_fstype;
43da2e3ebdSchin }
44da2e3ebdSchin
45da2e3ebdSchin #else
46da2e3ebdSchin
47da2e3ebdSchin #include <cdt.h>
48da2e3ebdSchin
49da2e3ebdSchin typedef struct Id_s
50da2e3ebdSchin {
51da2e3ebdSchin Dtlink_t link;
52da2e3ebdSchin dev_t id;
53da2e3ebdSchin char name[1];
54da2e3ebdSchin } Id_t;
55da2e3ebdSchin
56da2e3ebdSchin char*
fmtfs(struct stat * st)57da2e3ebdSchin fmtfs(struct stat* st)
58da2e3ebdSchin {
59da2e3ebdSchin register Id_t* ip;
60da2e3ebdSchin register void* mp;
61da2e3ebdSchin register Mnt_t* mnt;
62da2e3ebdSchin register char* s;
63da2e3ebdSchin struct stat rt;
64da2e3ebdSchin char* buf;
65da2e3ebdSchin
66da2e3ebdSchin static Dt_t* dict;
67da2e3ebdSchin static Dtdisc_t disc;
68da2e3ebdSchin
69da2e3ebdSchin if (!dict)
70da2e3ebdSchin {
71da2e3ebdSchin disc.key = offsetof(Id_t, id);
72da2e3ebdSchin disc.size = sizeof(dev_t);
73*b30d1939SAndy Fiddaman dict = dtopen(&disc, Dtset);
74da2e3ebdSchin }
75da2e3ebdSchin else if (ip = (Id_t*)dtmatch(dict, &st->st_dev))
76da2e3ebdSchin return ip->name;
77da2e3ebdSchin s = FS_default;
78da2e3ebdSchin if (mp = mntopen(NiL, "r"))
79da2e3ebdSchin {
80da2e3ebdSchin while ((mnt = mntread(mp)) && (stat(mnt->dir, &rt) || rt.st_dev != st->st_dev));
81da2e3ebdSchin if (mnt && mnt->type)
82da2e3ebdSchin s = mnt->type;
83da2e3ebdSchin }
84da2e3ebdSchin if (!dict || !(ip = newof(0, Id_t, 1, strlen(s))))
85da2e3ebdSchin {
86da2e3ebdSchin if (!mp)
87da2e3ebdSchin return s;
88da2e3ebdSchin buf = fmtbuf(strlen(s) + 1);
89da2e3ebdSchin strcpy(buf, s);
90da2e3ebdSchin mntclose(mp);
91da2e3ebdSchin return buf;
92da2e3ebdSchin }
93da2e3ebdSchin strcpy(ip->name, s);
94da2e3ebdSchin if (mp)
95da2e3ebdSchin mntclose(mp);
96da2e3ebdSchin dtinsert(dict, ip);
97da2e3ebdSchin return ip->name;
98da2e3ebdSchin }
99da2e3ebdSchin
100da2e3ebdSchin #endif
101