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Usenet 1994 October
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unix
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volume21
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amd
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part03
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am_ops.c
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C/C++ Source or Header
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1990-04-11
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3KB
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133 lines
/*
* $Id: am_ops.c,v 5.1.1.1 89/11/28 17:39:32 jsp Exp Locker: jsp $
*
* Copyright (c) 1989 Jan-Simon Pendry
* Copyright (c) 1989 Imperial College of Science, Technology & Medicine
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by Imperial College of Science, Technology and Medicine, London, UK.
* The names of the College and University may not be used to endorse
* or promote products derived from this software without specific
* prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* %W% (Berkeley) %G%
*/
#include "am.h"
static am_ops *vops[] = {
#ifdef HAS_UFS
&ufs_ops,
#endif
#ifdef HAS_NFS
&nfs_ops,
#endif
#ifdef HAS_SFS
&sfs_ops,
#endif
#ifdef HAS_LOFS
&lofs_ops,
#endif
#ifdef HAS_PFS
&pfs_ops,
#endif
&afs_ops, /* These three should be last ... */
&dfs_ops, /* ... */
&efs_ops, /* ... in the order afs; dfs; efs */
0
};
#ifdef SUNOS4_COMPAT
/*
* Crack a SunOS4-style host:fs:sub-link line
* Construct an amd-style line and call the
* normal amd matcher.
*/
am_ops *sunos4_match(fo, key, g_key, path, keym, map)
am_opts *fo;
char *key;
char *g_key;
char *path;
char *keym;
char *map;
{
char *host = key;
char *fs = strchr(host, ':');
char *sublink = fs ? strchr(fs+1, ':') : 0;
char keybuf[MAXPATHLEN];
sprintf(keybuf, "type:=nfs;rhost:=%s;rfs:=%s;sublink:=%s;opts:=%s", host,
fs ? fs+1 : "",
sublink ? sublink+1 : "",
g_key);
return ops_match(fo, keybuf, "", path, keym, map);
}
#endif /* SUNOS4_COMPAT */
am_ops *ops_match(fo, key, g_key, path, keym, map)
am_opts *fo;
char *key;
char *g_key;
char *path;
char *keym;
char *map;
{
am_ops **vp;
am_ops *rop = 0;
/*
* First crack the global opts and the local opts
*/
if (!eval_fs_opts(fo, key, g_key, path, keym, map)) {
rop = &efs_ops;
} else if (fo->opt_type == 0) {
plog(XLOG_USER, "No fs type specified (somewhere!)");
rop = &efs_ops;
} else {
/*
* Next find the correct filesystem type
*/
for (vp = vops; rop = *vp; vp++)
if (strcmp(rop->fs_type, fo->opt_type) == 0)
break;
if (!rop) {
plog(XLOG_USER, "fs type \"%s\" not recognised", fo->opt_type);
rop = &efs_ops;
}
}
/*
* Make sure we have a default mount option.
* Otherwise skip past any leading '-'.
*/
if (fo->opt_opts == 0)
fo->opt_opts = "rw,defaults";
else if (*fo->opt_opts == '-')
fo->opt_opts++;
/*
* Check the filesystem is happy
*/
if ((*rop->fs_match)(fo))
return rop;
/*
* Return error file system
*/
(void) (*efs_ops.fs_match)(fo);
return &efs_ops;
}