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make/vmsify.c
Paul Smith a6bdc58385 Last of the copyright updates.
2006-02-11 22:16:04 +00:00

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/* vmsify.c -- Module for vms <-> unix file name conversion
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 2, or (at your option) any later version.
GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Make; see the file COPYING. If not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */
/* Written by Klaus Kämpf (kkaempf@progis.de)
of proGIS Software, Aachen, Germany */
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#if VMS
#include <unixlib.h>
#include <stdlib.h>
#include <jpidef.h>
#include <descrip.h>
#include <uaidef.h>
#include <ssdef.h>
#include <starlet.h>
#include <lib$routines.h>
/* Initialize a string descriptor (struct dsc$descriptor_s) for an
arbitrary string. ADDR is a pointer to the first character
of the string, and LEN is the length of the string. */
#define INIT_DSC_S(dsc, addr, len) do { \
(dsc).dsc$b_dtype = DSC$K_DTYPE_T; \
(dsc).dsc$b_class = DSC$K_CLASS_S; \
(dsc).dsc$w_length = (len); \
(dsc).dsc$a_pointer = (addr); \
} while (0)
/* Initialize a string descriptor (struct dsc$descriptor_s) for a
NUL-terminated string. S is a pointer to the string; the length
is determined by calling strlen(). */
#define INIT_DSC_CSTRING(dsc, s) INIT_DSC_S(dsc, s, strlen(s))
#endif
/*
copy 'from' to 'to' up to but not including 'upto'
return 0 if eos on from
return 1 if upto found
return 'to' at last char + 1
return 'from' at match + 1 or eos if no match
if as_dir == 1, change all '.' to '_'
else change all '.' but the last to '_'
*/
static int
copyto (char **to, char **from, char upto, int as_dir)
{
char *s;
s = strrchr (*from, '.');
while (**from)
{
if (**from == upto)
{
do
{
(*from)++;
}
while (**from == upto);
return 1;
}
if (**from == '.')
{
if ((as_dir == 1)
|| (*from != s))
**to = '_';
else
**to = '.';
}
else
{
#ifdef HAVE_CASE_INSENSITIVE_FS
if (isupper ((unsigned char)**from))
**to = tolower ((unsigned char)**from);
else
#endif
**to = **from;
}
(*to)++;
(*from)++;
}
return 0;
}
/*
get translation of logical name
*/
static char *
trnlog (char *name)
{
int stat;
static char reslt[1024];
$DESCRIPTOR (reslt_dsc, reslt);
short resltlen;
struct dsc$descriptor_s name_dsc;
char *s;
INIT_DSC_CSTRING (name_dsc, name);
stat = lib$sys_trnlog (&name_dsc, &resltlen, &reslt_dsc);
if ((stat&1) == 0)
{
return "";
}
if (stat == SS$_NOTRAN)
{
return "";
}
reslt[resltlen] = '\0';
s = (char *)malloc (resltlen+1);
if (s == 0)
return "";
strcpy (s, reslt);
return s;
}
static char *
showall (char *s)
{
static char t[512];
char *pt;
pt = t;
if (strchr (s, '\\') == 0)
return s;
while (*s)
{
if (*s == '\\')
{
*pt++ = *s;
}
*pt++ = *s++;
}
return pt;
}
enum namestate { N_START, N_DEVICE, N_OPEN, N_DOT, N_CLOSED, N_DONE };
/*
convert unix style name to vms style
type = 0 -> name is a full name (directory and filename part)
type = 1 -> name is a directory
type = 2 -> name is a filename without directory
The following conversions are applied
(0) (1) (2)
input full name dir name file name
1 ./ <cwd> [] <current directory>.dir
2 ../ <home of cwd> <home of cwd> <home of cwd>.dir
3 // <dev of cwd>: <dev of cwd>:[000000] <dev of cwd>:000000.dir
4 //a a: a: a:
5 //a/ a: a: a:000000.dir
9 / [000000] [000000] 000000.dir
10 /a [000000]a [a] [000000]a
11 /a/ [a] [a] [000000]a.dir
12 /a/b [a]b [a.b] [a]b
13 /a/b/ [a.b] [a.b] [a]b.dir
14 /a/b/c [a.b]c [a.b.c] [a.b]c
15 /a/b/c/ [a.b.c] [a.b.c] [a.b]c.dir
16 a a [.a] a
17 a/ [.a] [.a] a.dir
18 a/b [.a]b [.a.b] [.a]b
19 a/b/ [.a.b] [.a.b] [.a]b.dir
20 a/b/c [.a.b]c [.a.b.c] [.a.b]c
21 a/b/c/ [.a.b.c] [.a.b.c] [.a.b]c.dir
22 a.b.c a_b.c [.a_b_c] a_b_c.dir
23 [x][y]z [x.y]z [x.y]z [x.y]z
24 [x][.y]z [x.y]z [x.y]z [x.y]z
25 filenames with '$' are left unchanged if they contain no '/'
25 filenames with ':' are left unchanged
26 filenames with a single pair of '[' ']' are left unchanged
the input string is not written to
*/
char *
vmsify (char *name, int type)
{
/* max 255 device
max 39 directory
max 39 filename
max 39 filetype
max 5 version
*/
#define MAXPATHLEN 512
enum namestate nstate;
static char vmsname[MAXPATHLEN+1];
char *fptr;
char *vptr;
char *s,*s1;
int as_dir;
int count;
if (name == 0)
return 0;
fptr = name;
vptr = vmsname;
nstate = N_START;
/* case 25a */
s = strpbrk (name, "$:");
if (s != 0)
{
char *s1;
char *s2;
if (type == 1)
{
s1 = strchr (s+1, '[');
s2 = strchr (s+1, ']');
}
if (*s == '$')
{
if (strchr (name, '/') == 0)
{
if ((type == 1) && (s1 != 0) && (s2 == 0))
{
strcpy (vmsname, name);
strcat (vmsname, "]");
return vmsname;
}
else
return name;
}
}
else
{
if ((type == 1) && (s1 != 0) && (s2 == 0))
{
strcpy (vmsname, name);
strcat (vmsname, "]");
return vmsname;
}
else
return name;
}
}
/* case 26 */
s = strchr (name, '[');
if (s != 0)
{
s1 = strchr (s+1, '[');
if (s1 == 0)
{
if ((type == 1)
&& (strchr (s+1, ']') == 0))
{
strcpy (vmsname, name);
strcat (vmsname, "]");
return vmsname;
}
else
return name; /* single [, keep unchanged */
}
s1--;
if (*s1 != ']')
{
return name; /* not ][, keep unchanged */
}
/* we have ][ */
s = name;
/* s -> starting char
s1 -> ending ']' */
do
{
strncpy (vptr, s, s1-s); /* copy up to but not including ']' */
vptr += s1-s;
if (*s1 == 0)
break;
s = s1 + 1; /* s -> char behind ']' */
if (*s != '[') /* was '][' ? */
break; /* no, last ] found, exit */
s++;
if (*s != '.')
*vptr++ = '.';
s1 = strchr (s, ']');
if (s1 == 0) /* no closing ] */
s1 = s + strlen (s);
}
while (1);
*vptr++ = ']';
fptr = s;
}
else /* no [ in name */
{
int state;
int rooted = 1; /* flag if logical is rooted, else insert [000000] */
state = 0;
do
{
switch (state)
{
case 0: /* start of loop */
if (*fptr == '/')
{
fptr++;
state = 1;
}
else if (*fptr == '.')
{
fptr++;
state = 10;
}
else
state = 2;
break;
case 1: /* '/' at start */
if (*fptr == '/')
{
fptr++;
state = 3;
}
else
state = 4;
break;
case 2: /* no '/' at start */
s = strchr (fptr, '/');
if (s == 0) /* no '/' (16) */
{
if (type == 1)
{
strcpy (vptr, "[.");
vptr += 2;
}
copyto (&vptr, &fptr, 0, (type==1));
if (type == 1)
*vptr++ = ']';
state = -1;
}
else /* found '/' (17..21) */
{
if ((type == 2)
&& (*(s+1) == 0)) /* 17(2) */
{
copyto (&vptr, &fptr, '/', 1);
state = 7;
}
else
{
strcpy (vptr, "[.");
vptr += 2;
copyto (&vptr, &fptr, '/', 1);
nstate = N_OPEN;
state = 9;
}
}
break;
case 3: /* '//' at start */
while (*fptr == '/') /* collapse all '/' */
fptr++;
if (*fptr == 0) /* just // */
{
char cwdbuf[MAXPATHLEN+1];
s1 = getcwd(cwdbuf, MAXPATHLEN);
if (s1 == 0)
{
return ""; /* FIXME, err getcwd */
}
s = strchr (s1, ':');
if (s == 0)
{
return ""; /* FIXME, err no device */
}
strncpy (vptr, s1, s-s1+1);
vptr += s-s1+1;
state = -1;
break;
}
s = vptr;
if (copyto (&vptr, &fptr, '/', 1) == 0) /* copy device part */
{
*vptr++ = ':';
state = -1;
break;
}
*vptr = ':';
nstate = N_DEVICE;
if (*fptr == 0) /* just '//a/' */
{
strcpy (vptr+1, "[000000]");
vptr += 9;
state = -1;
break;
}
*vptr = 0;
/* check logical for [000000] insertion */
s1 = trnlog (s);
if (*s1 != 0)
{ /* found translation */
char *s2;
for (;;) /* loop over all nested logicals */
{
s2 = s1 + strlen (s1) - 1;
if (*s2 == ':') /* translation ends in ':' */
{
s2 = trnlog (s1);
free (s1);
if (*s2 == 0)
{
rooted = 0;
break;
}
s1 = s2;
continue; /* next iteration */
}
if (*s2 == ']') /* translation ends in ']' */
{
if (*(s2-1) == '.') /* ends in '.]' */
{
if (strncmp (fptr, "000000", 6) != 0)
rooted = 0;
}
else
{
strcpy (vmsname, s1);
s = strchr (vmsname, ']');
*s = '.';
nstate = N_DOT;
vptr = s;
}
}
break;
}
free (s1);
}
else
rooted = 0;
if (*vptr == 0)
{
nstate = N_DEVICE;
*vptr++ = ':';
}
else
vptr++;
if (rooted == 0)
{
strcpy (vptr, "[000000.");
vptr += 8;
s1 = vptr-1;
nstate = N_DOT;
}
else
s1 = 0;
/* s1-> '.' after 000000 or NULL */
s = strchr (fptr, '/');
if (s == 0)
{ /* no next '/' */
if (*(vptr-1) == '.')
*(vptr-1) = ']';
else if (rooted == 0)
*vptr++ = ']';
copyto (&vptr, &fptr, 0, (type == 1));
state = -1;
break;
}
else
{
while (*(s+1) == '/') /* skip multiple '/' */
s++;
}
if ((rooted != 0)
&& (*(vptr-1) != '.'))
{
*vptr++ = '[';
nstate = N_DOT;
}
else
if ((nstate == N_DOT)
&& (s1 != 0)
&& (*(s+1) == 0))
{
if (type == 2)
{
*s1 = ']';
nstate = N_CLOSED;
}
}
state = 9;
break;
case 4: /* single '/' at start (9..15) */
if (*fptr == 0)
state = 5;
else
state = 6;
break;
case 5: /* just '/' at start (9) */
if (type != 2)
{
*vptr++ = '[';
nstate = N_OPEN;
}
strcpy (vptr, "000000");
vptr += 6;
if (type == 2)
state = 7;
else
state = 8;
break;
case 6: /* chars following '/' at start 10..15 */
*vptr++ = '[';
nstate = N_OPEN;
s = strchr (fptr, '/');
if (s == 0) /* 10 */
{
if (type != 1)
{
strcpy (vptr, "000000]");
vptr += 7;
}
copyto (&vptr, &fptr, 0, (type == 1));
if (type == 1)
{
*vptr++ = ']';
}
state = -1;
}
else /* 11..15 */
{
if ( (type == 2)
&& (*(s+1) == 0)) /* 11(2) */
{
strcpy (vptr, "000000]");
nstate = N_CLOSED;
vptr += 7;
}
copyto (&vptr, &fptr, '/', (*(vptr-1) != ']'));
state = 9;
}
break;
case 7: /* add '.dir' and exit */
if ((nstate == N_OPEN)
|| (nstate == N_DOT))
{
s = vptr-1;
while (s > vmsname)
{
if (*s == ']')
{
break;
}
if (*s == '.')
{
*s = ']';
break;
}
s--;
}
}
strcpy (vptr, ".dir");
vptr += 4;
state = -1;
break;
case 8: /* add ']' and exit */
*vptr++ = ']';
state = -1;
break;
case 9: /* 17..21, fptr -> 1st '/' + 1 */
if (*fptr == 0)
{
if (type == 2)
{
state = 7;
}
else
state = 8;
break;
}
s = strchr (fptr, '/');
if (s == 0)
{
if (type != 1)
{
if (nstate == N_OPEN)
{
*vptr++ = ']';
nstate = N_CLOSED;
}
as_dir = 0;
}
else
{
if (nstate == N_OPEN)
{
*vptr++ = '.';
nstate = N_DOT;
}
as_dir = 1;
}
}
else
{
while (*(s+1) == '/')
s++;
if ( (type == 2)
&& (*(s+1) == 0)) /* 19(2), 21(2)*/
{
if (nstate != N_CLOSED)
{
*vptr++ = ']';
nstate = N_CLOSED;
}
as_dir = 1;
}
else
{
if (nstate == N_OPEN)
{
*vptr++ = '.';
nstate = N_DOT;
}
as_dir = 1;
}
}
if ( (*fptr == '.') /* check for '..' or '../' */
&& (*(fptr+1) == '.')
&& ((*(fptr+2) == '/')
|| (*(fptr+2) == 0)) )
{
fptr += 2;
if (*fptr == '/')
{
do
{
fptr++;
}
while (*fptr == '/');
}
else if (*fptr == 0)
type = 1;
vptr--; /* vptr -> '.' or ']' */
s1 = vptr;
for (;;)
{
s1--;
if (*s1 == '.') /* one back */
{
vptr = s1;
nstate = N_OPEN;
break;
}
if (*s1 == '[') /* top level reached */
{
if (*fptr == 0)
{
strcpy (s1, "[000000]");
vptr = s1 + 8;
nstate = N_CLOSED;
s = 0;
break;
}
else
{
vptr = s1+1;
nstate = N_OPEN;
break;
}
}
}
}
else
{
copyto (&vptr, &fptr, '/', as_dir);
if (nstate == N_DOT)
nstate = N_OPEN;
}
if (s == 0)
{ /* 18,20 */
if (type == 1)
*vptr++ = ']';
state = -1;
}
else
{
if (*(s+1) == 0)
{
if (type == 2) /* 19,21 */
{
state = 7;
}
else
{
*vptr++ = ']';
state = -1;
}
}
}
break;
case 10: /* 1,2 first is '.' */
if (*fptr == '.')
{
fptr++;
state = 11;
}
else
state = 12;
break;
case 11: /* 2, '..' at start */
count = 1;
if (*fptr != 0)
{
if (*fptr != '/') /* got ..xxx */
{
return name;
}
do /* got ../ */
{
fptr++;
while (*fptr == '/') fptr++;
if (*fptr != '.')
break;
if (*(fptr+1) != '.')
break;
fptr += 2;
if ((*fptr == 0)
|| (*fptr == '/'))
count++;
}
while (*fptr == '/');
}
{ /* got '..' or '../' */
char cwdbuf[MAXPATHLEN+1];
s1 = getcwd(cwdbuf, MAXPATHLEN);
if (s1 == 0)
{
return ""; /* FIXME, err getcwd */
}
strcpy (vptr, s1);
s = strchr (vptr, ']');
if (s != 0)
{
nstate = N_OPEN;
while (s > vptr)
{
s--;
if (*s == '[')
{
s++;
strcpy (s, "000000]");
state = -1;
break;
}
else if (*s == '.')
{
if (--count == 0)
{
if (*fptr == 0) /* had '..' or '../' */
{
*s++ = ']';
state = -1;
}
else /* had '../xxx' */
{
state = 9;
}
*s = 0;
break;
}
}
}
}
vptr += strlen (vptr);
}
break;
case 12: /* 1, '.' at start */
if (*fptr != 0)
{
if (*fptr != '/')
{
return name;
}
while (*fptr == '/')
fptr++;
}
{
char cwdbuf[MAXPATHLEN+1];
s1 = getcwd(cwdbuf, MAXPATHLEN);
if (s1 == 0)
{
return ""; /*FIXME, err getcwd */
}
strcpy (vptr, s1);
if (*fptr == 0)
{
state = -1;
break;
}
else
{
s = strchr (vptr, ']');
if (s == 0)
{
state = -1;
break;
}
*s = 0;
nstate = N_OPEN;
vptr += strlen (vptr);
state = 9;
}
}
break;
}
}
while (state > 0);
}
/* directory conversion done
fptr -> filename part of input string
vptr -> free space in vmsname
*/
*vptr++ = 0;
return vmsname;
}
/*
convert from vms-style to unix-style
dev:[dir1.dir2] //dev/dir1/dir2/
*/
char *
unixify (char *name)
{
static char piece[512];
char *s, *p;
if (strchr (name, '/') != 0) /* already in unix style */
return name;
p = piece;
*p = 0;
/* device part */
s = strchr (name, ':');
if (s != 0)
{
*s = 0;
*p++ = '/';
*p++ = '/';
strcpy (p, name);
p += strlen (p);
*s = ':';
}
/* directory part */
*p++ = '/';
s = strchr (name, '[');
if (s != 0)
{
s++;
switch (*s)
{
case ']': /* [] */
strcat (p, "./");
break;
case '-': /* [- */
strcat (p, "../");
break;
case '.':
strcat (p, "./"); /* [. */
break;
default:
s--;
break;
}
s++;
while (*s)
{
if (*s == '.')
*p++ = '/';
else
*p++ = *s;
s++;
if (*s == ']')
{
s++;
break;
}
}
if (*s != 0) /* more after ']' ?? */
{
if (*(p-1) != '/')
*p++ = '/';
strcpy (p, s); /* copy it anyway */
}
}
else /* no '[' anywhere */
{
*p++ = 0;
}
/* force end with '/' */
if (*(p-1) != '/')
*p++ = '/';
*p = 0;
return piece;
}
/* EOF */
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