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1772
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1 /* getdirs.c Routine to get pathname for specified directory.
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2 Copyright (C) 1993 Bob Billson
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3
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4 This file is part of the OS-9 UUCP package, UUCPbb.
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5
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6 This program is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2 of the License, or
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9 (at your option) any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program; if not, write to the Free Software
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18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19
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20 The author of UUCPbb, Bob Billson, can be contacted at:
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21 bob@kc2wz.bubble.org or uunet!kc2wz!bob or by snail mail:
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22 21 Bates Way, Westfield, NJ 07090
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23 */
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24
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25 /* Function to get directory name from the /dd/sys/uucp/Parameters file. A
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26 pointer to a malloc()'ed string containing the name is returned. It is the
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27 responsibility of the calling function to free() the memory when it is no
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28 longer needed. If the Parameters file can't be read or no matching
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29 directory is found, a NULL is returned. */
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30
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31 #include "uucp.h"
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32
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33 #define WORDSIZE 3
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34
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35 EXTERN char fname[];
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36 EXTERN QQ unsigned myuid;
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37
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38
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39 char *getdirs (directory)
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40 char *directory;
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41 {
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42 char line[100];
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43 register char *p;
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44 FILE *fp;
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45 char *p2, *words[WORDSIZE];
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46 int n, linecount, dirlen = strlen (directory);
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47
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48 p = line;
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49 sprintf (fname, "%s/Parameters", UUCPSYS);
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50 asetuid (0);
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51
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52 if ((fp = fopen (fname, "r")) == NULL)
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53 {
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54 sprintf (p, "getdirs: can't open %s", fname);
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55 asetuid (myuid);
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56 return (p2);
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57 }
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58
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59 asetuid (myuid);
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60 p2 = (char *)NULL;
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61 linecount = 0;
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62 while (mfgets (p, sizeof (line), fp) != NULL)
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63 {
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64 ++linecount;
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65
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66 if (strnucmp (directory, p, dirlen) == 0)
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67 {
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68 n = getargs (words, p, WORDSIZE);
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69
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70 if (n != 3 || words[1][0] != '=')
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71 {
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72 fprintf (stderr,
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73 "getdirs: bad line in Parameters at line %d\n",
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74 linecount);
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75 }
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76 else
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77 p2 = strdup (words[2]);
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78 break;
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79 }
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80 }
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81 fclose (fp);
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82 return (p2);
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83 }
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