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952 lines
16 KiB
C
952 lines
16 KiB
C
/*
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vmsify.c
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Module for vms <-> unix file name conversion
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Written by Klaus Kämpf (kkaempf@progis.de)
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of proGIS Software, Aachen, Germany
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*/
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#include <string.h>
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#include <ctype.h>
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#if VMS
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#include <unixlib.h>
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#include <stdlib.h>
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#include <jpidef.h>
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#include <descrip.h>
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#include <uaidef.h>
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#include <ssdef.h>
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#include <starlet.h>
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#include <lib$routines.h>
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/* Initialize a string descriptor (struct dsc$descriptor_s) for an
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arbitrary string. ADDR is a pointer to the first character
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of the string, and LEN is the length of the string. */
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#define INIT_DSC_S(dsc, addr, len) do { \
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(dsc).dsc$b_dtype = DSC$K_DTYPE_T; \
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(dsc).dsc$b_class = DSC$K_CLASS_S; \
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(dsc).dsc$w_length = (len); \
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(dsc).dsc$a_pointer = (addr); \
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} while (0)
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/* Initialize a string descriptor (struct dsc$descriptor_s) for a
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NUL-terminated string. S is a pointer to the string; the length
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is determined by calling strlen(). */
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#define INIT_DSC_CSTRING(dsc, s) INIT_DSC_S(dsc, s, strlen(s))
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#endif
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/*
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copy 'from' to 'to' up to but not including 'upto'
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return 0 if eos on from
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return 1 if upto found
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return 'to' at last char + 1
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return 'from' at match + 1 or eos if no match
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if as_dir == 1, change all '.' to '_'
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else change all '.' but the last to '_'
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*/
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static int
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copyto (char **to, char **from, char upto, int as_dir)
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{
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char *s;
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s = strrchr (*from, '.');
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while (**from)
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{
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if (**from == upto)
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{
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do
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{
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(*from)++;
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}
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while (**from == upto);
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return 1;
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}
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if (**from == '.')
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{
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if ((as_dir == 1)
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|| (*from != s))
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**to = '_';
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else
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**to = '.';
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}
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else
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{
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if (islower (**from))
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**to = toupper (**from);
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else
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**to = **from;
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}
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(*to)++;
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(*from)++;
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}
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return 0;
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}
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/*
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get translation of logical name
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*/
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static char *
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trnlog (char *name)
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{
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int stat;
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static char reslt[1024];
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$DESCRIPTOR (reslt_dsc, reslt);
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short resltlen;
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struct dsc$descriptor_s name_dsc;
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char *s;
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INIT_DSC_CSTRING (name_dsc, name);
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stat = lib$sys_trnlog (&name_dsc, &resltlen, &reslt_dsc);
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if ((stat&1) == 0)
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{
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return "";
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}
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if (stat == SS$_NOTRAN)
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{
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return "";
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}
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reslt[resltlen] = '\0';
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s = (char *)malloc (resltlen+1);
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if (s == 0)
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return "";
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strcpy (s, reslt);
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return s;
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}
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enum namestate { N_START, N_DEVICE, N_OPEN, N_DOT, N_CLOSED, N_DONE };
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/*
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convert unix style name to vms style
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type = 0 -> name is a full name (directory and filename part)
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type = 1 -> name is a directory
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type = 2 -> name is a filename without directory
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The following conversions are applied
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(0) (1) (2)
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input full name dir name file name
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1 ./ <cwd> [] <current directory>.dir
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2 ../ <home of cwd> <home of cwd> <home of cwd>.dir
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3 // <dev of cwd>: <dev of cwd>:[000000] <dev of cwd>:000000.dir
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4 //a a: a: a:
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5 //a/ a: a: a:000000.dir
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9 / [000000] [000000] 000000.dir
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10 /a [000000]a [a] [000000]a
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11 /a/ [a] [a] [000000]a.dir
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12 /a/b [a]b [a.b] [a]b
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13 /a/b/ [a.b] [a.b] [a]b.dir
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14 /a/b/c [a.b]c [a.b.c] [a.b]c
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15 /a/b/c/ [a.b.c] [a.b.c] [a.b]c.dir
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16 a a [.a] a
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17 a/ [.a] [.a] a.dir
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18 a/b [.a]b [.a.b] [.a]b
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19 a/b/ [.a.b] [.a.b] [.a]b.dir
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20 a/b/c [.a.b]c [.a.b.c] [.a.b]c
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21 a/b/c/ [.a.b.c] [.a.b.c] [.a.b]c.dir
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22 a.b.c a_b.c [.a_b_c] a_b_c.dir
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23 [x][y]z [x.y]z [x.y]z [x.y]z
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24 [x][.y]z [x.y]z [x.y]z [x.y]z
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25 filenames with '$' are left unchanged if they contain no '/'
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25 filenames with ':' are left unchanged
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26 filenames with a single pair of '[' ']' are left unchanged
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the input string is not written to
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*/
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char *
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vmsify (name, type)
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char *name;
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int type;
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{
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/* max 255 device
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max 39 directory
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max 39 filename
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max 39 filetype
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max 5 version
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*/
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#define MAXPATHLEN 512
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enum namestate nstate;
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static char vmsname[MAXPATHLEN+1];
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char *fptr;
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char *vptr;
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char *s,*s1;
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int as_dir;
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int count;
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if (name == 0)
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return 0;
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fptr = name;
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vptr = vmsname;
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nstate = N_START;
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/* case 25a */
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s = strpbrk (name, "$:");
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if (s != 0)
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{
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if (*s == '$')
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{
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if (strchr (name, '/') == 0)
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{
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return name;
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}
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}
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else
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{
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return name;
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}
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}
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/* case 26 */
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s = strchr (name, '[');
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if (s != 0)
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{
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s1 = strchr (s+1, '[');
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if (s1 == 0)
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{
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return name; /* single [, keep unchanged */
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}
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s1--;
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if (*s1 != ']')
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{
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return name; /* not ][, keep unchanged */
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}
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/* we have ][ */
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s = name;
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/* s -> starting char
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s1 -> ending ']' */
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do
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{
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strncpy (vptr, s, s1-s); /* copy up to but not including ']' */
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vptr += s1-s;
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if (*s1 == 0)
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break;
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s = s1 + 1; /* s -> char behind ']' */
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if (*s != '[') /* was '][' ? */
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break; /* no, last ] found, exit */
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s++;
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if (*s != '.')
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*vptr++ = '.';
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s1 = strchr (s, ']');
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if (s1 == 0) /* no closing ] */
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s1 = s + strlen (s);
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}
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while (1);
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*vptr++ = ']';
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fptr = s;
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}
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else /* no [ in name */
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{
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int state;
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int rooted = 1; /* flag if logical is rooted, else insert [000000] */
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state = 0;
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do
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{
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switch (state)
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{
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case 0: /* start of loop */
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if (*fptr == '/')
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{
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fptr++;
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state = 1;
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}
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else if (*fptr == '.')
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{
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fptr++;
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state = 10;
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}
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else
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state = 2;
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break;
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case 1: /* '/' at start */
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if (*fptr == '/')
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{
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fptr++;
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state = 3;
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}
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else
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state = 4;
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break;
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case 2: /* no '/' at start */
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s = strchr (fptr, '/');
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if (s == 0) /* no '/' (16) */
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{
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if (type == 1)
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{
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strcpy (vptr, "[.");
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vptr += 2;
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}
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copyto (&vptr, &fptr, 0, (type==1));
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if (type == 1)
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*vptr++ = ']';
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state = -1;
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}
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else /* found '/' (17..21) */
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{
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if ((type == 2)
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&& (*(s+1) == 0)) /* 17(2) */
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{
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copyto (&vptr, &fptr, '/', 1);
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state = 7;
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}
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else
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{
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strcpy (vptr, "[.");
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vptr += 2;
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copyto (&vptr, &fptr, '/', 1);
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nstate = N_OPEN;
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state = 9;
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}
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}
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break;
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case 3: /* '//' at start */
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while (*fptr == '/') /* collapse all '/' */
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fptr++;
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if (*fptr == 0) /* just // */
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{
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char cwdbuf[MAXPATHLEN+1];
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s1 = getcwd(cwdbuf, MAXPATHLEN);
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if (s1 == 0)
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{
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return ""; /* FIXME, err getcwd */
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}
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s = strchr (s1, ':');
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if (s == 0)
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{
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return ""; /* FIXME, err no device */
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}
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strncpy (vptr, s1, s-s1+1);
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vptr += s-s1+1;
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state = -1;
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break;
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}
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s = vptr;
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if (copyto (&vptr, &fptr, '/', 1) == 0) /* copy device part */
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{
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*vptr++ = ':';
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state = -1;
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break;
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}
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*vptr = ':';
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nstate = N_DEVICE;
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if (*fptr == 0) /* just '//a/' */
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{
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strcpy (vptr+1, "[000000]");
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vptr += 9;
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state = -1;
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break;
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}
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*vptr = 0;
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/* check logical for [000000] insertion */
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s1 = trnlog (s);
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if (*s1 != 0)
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{ /* found translation */
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char *s2;
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for (;;) /* loop over all nested logicals */
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{
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s2 = s1 + strlen (s1) - 1;
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if (*s2 == ':') /* translation ends in ':' */
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{
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s2 = trnlog (s1);
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free (s1);
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if (*s2 == 0)
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{
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rooted = 0;
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break;
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}
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s1 = s2;
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continue; /* next iteration */
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}
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if (*s2 == ']') /* translation ends in ']' */
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{
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if (*(s2-1) == '.') /* ends in '.]' */
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{
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if (!strneq (fptr, "000000", 6))
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rooted = 0;
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}
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else
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{
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strcpy (vmsname, s1);
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s = strchr (vmsname, ']');
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*s = '.';
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nstate = N_DOT;
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vptr = s;
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}
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}
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break;
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}
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free (s1);
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}
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else
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rooted = 0;
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if (*vptr == 0)
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{
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nstate = N_DEVICE;
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*vptr++ = ':';
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}
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else
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vptr++;
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if (rooted == 0)
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{
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strcpy (vptr, "[000000.");
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vptr += 8;
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s1 = vptr-1;
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nstate = N_DOT;
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}
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else
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s1 = 0;
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/* s1-> '.' after 000000 or NULL */
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s = strchr (fptr, '/');
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if (s == 0)
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{ /* no next '/' */
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if (*(vptr-1) == '.')
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*(vptr-1) = ']';
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else if (rooted == 0)
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*vptr++ = ']';
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copyto (&vptr, &fptr, 0, (type == 1));
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state = -1;
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break;
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}
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else
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{
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while (*(s+1) == '/') /* skip multiple '/' */
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s++;
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}
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if ((rooted != 0)
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&& (*(vptr-1) != '.'))
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{
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*vptr++ = '[';
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nstate = N_DOT;
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}
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else
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if ((nstate == N_DOT)
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&& (s1 != 0)
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&& (*(s+1) == 0))
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{
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if (type == 2)
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{
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*s1 = ']';
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nstate = N_CLOSED;
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}
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}
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state = 9;
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break;
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case 4: /* single '/' at start (9..15) */
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if (*fptr == 0)
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state = 5;
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else
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state = 6;
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break;
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case 5: /* just '/' at start (9) */
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if (type != 2)
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{
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*vptr++ = '[';
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nstate = N_OPEN;
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}
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strcpy (vptr, "000000");
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vptr += 6;
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if (type == 2)
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state = 7;
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else
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state = 8;
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break;
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case 6: /* chars following '/' at start 10..15 */
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*vptr++ = '[';
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nstate = N_OPEN;
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s = strchr (fptr, '/');
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if (s == 0) /* 10 */
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{
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if (type != 1)
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{
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strcpy (vptr, "000000]");
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vptr += 7;
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}
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copyto (&vptr, &fptr, 0, (type == 1));
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if (type == 1)
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{
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*vptr++ = ']';
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}
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state = -1;
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}
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else /* 11..15 */
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{
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if ( (type == 2)
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&& (*(s+1) == 0)) /* 11(2) */
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{
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strcpy (vptr, "000000]");
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nstate = N_CLOSED;
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vptr += 7;
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}
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copyto (&vptr, &fptr, '/', (*(vptr-1) != ']'));
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state = 9;
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}
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break;
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case 7: /* add '.dir' and exit */
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if ((nstate == N_OPEN)
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|| (nstate == N_DOT))
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{
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s = vptr-1;
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while (s > vmsname)
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{
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if (*s == ']')
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{
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break;
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}
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if (*s == '.')
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{
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*s = ']';
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break;
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}
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s--;
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}
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}
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strcpy (vptr, ".dir");
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vptr += 4;
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state = -1;
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break;
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case 8: /* add ']' and exit */
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*vptr++ = ']';
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state = -1;
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break;
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case 9: /* 17..21, fptr -> 1st '/' + 1 */
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if (*fptr == 0)
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{
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if (type == 2)
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{
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state = 7;
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}
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else
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state = 8;
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break;
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}
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s = strchr (fptr, '/');
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if (s == 0)
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{
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if (type != 1)
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{
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if (nstate == N_OPEN)
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{
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*vptr++ = ']';
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nstate = N_CLOSED;
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}
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as_dir = 0;
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}
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else
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{
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if (nstate == N_OPEN)
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{
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*vptr++ = '.';
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nstate = N_DOT;
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}
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as_dir = 1;
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}
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}
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else
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{
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while (*(s+1) == '/')
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s++;
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if ( (type == 2)
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&& (*(s+1) == 0)) /* 19(2), 21(2)*/
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{
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|
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 '../' */
|
|
nstate = N_OPEN;
|
|
*vptr++ = '[';
|
|
while (count--)
|
|
*vptr++ = '-';
|
|
|
|
if (*fptr == 0) /* had '..' or '../' */
|
|
{
|
|
*vptr++ = ']';
|
|
state = -1;
|
|
}
|
|
else /* had '../xxx' */
|
|
{
|
|
state = 9;
|
|
}
|
|
*vptr = 0;
|
|
}
|
|
break;
|
|
|
|
case 12: /* 1, '.' at start */
|
|
if (*fptr != 0)
|
|
{
|
|
if (*fptr != '/')
|
|
{
|
|
return name;
|
|
}
|
|
fptr++;
|
|
}
|
|
|
|
if (*fptr)
|
|
{
|
|
state = 9;
|
|
|
|
switch (type)
|
|
{
|
|
case 0:
|
|
nstate = N_CLOSED;
|
|
*vptr++ = '[';
|
|
*vptr++ = ']';
|
|
break;
|
|
|
|
case 1:
|
|
nstate = N_OPEN;
|
|
*vptr++ = '[';
|
|
break;
|
|
|
|
case 2:
|
|
nstate = N_CLOSED;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (type == 1)
|
|
{
|
|
*vptr++ = '[';
|
|
*vptr++ = ']';
|
|
state = -1;
|
|
}
|
|
else
|
|
{
|
|
char cwdbuf[MAXPATHLEN+1];
|
|
|
|
s1 = getcwd(cwdbuf, MAXPATHLEN);
|
|
if (s1 == 0)
|
|
{
|
|
return "foo"; /*FIXME, err getcwd */
|
|
}
|
|
strcpy (vptr, s1);
|
|
vptr += strlen (vptr);
|
|
|
|
if (type == 2)
|
|
{
|
|
s = vptr;
|
|
while (s > vmsname)
|
|
{
|
|
if (*s == '.')
|
|
{
|
|
*s = ']';
|
|
vptr--;
|
|
break;
|
|
}
|
|
|
|
if (*s == '[')
|
|
{
|
|
int i;
|
|
char *t = vptr - 2;
|
|
while (t > s)
|
|
{
|
|
*(t+7) = *t;
|
|
t--;
|
|
}
|
|
s++;
|
|
for (i = 0; i < 6; i++)
|
|
*s++ = '0';
|
|
*s = ']';
|
|
vptr += 6;
|
|
break;
|
|
}
|
|
s--;
|
|
}
|
|
|
|
strcpy (vptr, ".dir");
|
|
vptr += 4;
|
|
}
|
|
|
|
state = -1;
|
|
}
|
|
}
|
|
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 */
|