1 | /* This file is part of the Project Athena Global Message System. |
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2 | * Created by: Mark W. Eichin <eichin@athena.mit.edu> |
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3 | * $Source: /afs/dev.mit.edu/source/repository/athena/bin/gms/get_servername.c,v $ |
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4 | * $Author: eichin $ |
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5 | * |
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6 | * Copyright (c) 1988 by the Massachusetts Institute of Technology. |
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7 | * For copying and distribution information, see the file |
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8 | * "mit-copyright.h". |
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9 | */ |
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10 | #include <mit-copyright.h> |
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11 | #ifndef lint |
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12 | static char rcsid_get_servername_c[] = "$Header: /afs/dev.mit.edu/source/repository/athena/bin/gms/get_servername.c,v 1.1 1988-09-26 15:39:47 eichin Exp $"; |
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13 | #endif lint |
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14 | |
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15 | #include "globalmessage.h" |
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16 | #include <hesiod.h> |
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17 | |
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18 | Code_t get_servername(ret_name) |
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19 | char ***ret_name; /* pointer to array of string... */ |
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20 | { |
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21 | char **retval, **data; /* for copying out the hesiod data */ |
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22 | int datacnt, i; /* number of hesiod records returned */ |
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23 | |
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24 | /* Guard against NULL arguments */ |
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25 | if ((!ret_name)) { |
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26 | return(GMS_NULL_ARG_ERR); |
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27 | } |
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28 | |
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29 | /* Fetch the list of servers from Hesiod. */ |
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30 | data = hes_resolve(GMS_NAME_CLASS, GMS_NAME_TYPE); |
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31 | |
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32 | if(!data) { |
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33 | /* deal with hesiod error */ |
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34 | return(hesiod_error()); |
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35 | } |
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36 | |
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37 | /* Copy the Hesiod data into stable space. */ |
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38 | for(datacnt=0; data[datacnt++]; ); /* count the data */ |
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39 | |
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40 | retval = (char **)malloc(datacnt * sizeof(char *)); |
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41 | for(i=0; i<datacnt; i++) { |
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42 | retval[i] = malloc(strlen(data[i])+1); |
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43 | if(!retval[i]) { |
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44 | /* malloc failed... */ |
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45 | for(;--i;free(retval[i])); |
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46 | return(GMS_MALLOC_ERR); |
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47 | } |
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48 | strcpy(retval[i], data[i]); |
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49 | } |
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50 | |
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51 | /* Clean up and return normally. */ |
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52 | *ret_name = retval; |
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53 | return(0); |
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54 | } |
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