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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <unistd.h>
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4 #include <ctype.h>
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5 #include <string.h>
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6
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7 #include "list.h"
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8
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9 #define MAX_LENGHT_INPUT 1024
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10 #define cfg_entry(n) list_entry(n, cfg_entry_t, list)
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11
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12 typedef struct _cfg_entry_t {
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13 char *key;
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14 char *value;
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15 struct list_head list;
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16 } cfg_entry_t;
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17
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18 static LIST_HEAD(cfg_list);
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19
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20
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21 void push_in_list(char *key, char *value)
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22 {
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23 cfg_entry_t *new_entry = calloc(1, sizeof(cfg_entry_t));
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24
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25 new_entry->key = (char *) calloc(1, strlen(key) + 1);
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26 new_entry->value = (char *) calloc(1, strlen(value) + 1);
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27
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28 strcpy(new_entry->key, key);
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29 strcpy(new_entry->value, value);
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30
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31 list_add(&new_entry->list, &cfg_list);
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32 }
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33
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34 int cfg_file(char *filename)
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35 {
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36 FILE *fp;
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37 char *buf;
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38 char *line;
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39 char *value;
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40
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41 buf = malloc(255);
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42
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43 if ((fp = fopen(filename, "r")) == NULL) {
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44 perror("fopen (parsecfg.c:46)");
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45 exit(EXIT_FAILURE);
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46 }
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47
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48 while (fgets(buf, 255, fp) != NULL) {
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49 line = buf;
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50
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51 while (isspace((int) *line))
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52 line++;
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53
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54 while ((strlen(line) > 0)
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55 && isspace((int) line[strlen(line) - 1]))
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56 line[strlen(line) - 1] = '\0';
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57
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58 if ((*line == '\n') || (*line == '\0') || (*line == '#'))
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59 continue;
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60
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61 if ((strchr(line, '=') != NULL)) {
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62 value = strchr(line, '=');
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63 *value = '\0';
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64 value++;
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65
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66 while (isspace((int) *value))
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67 value++;
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68
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69 while ((strlen(line) > 0)
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70 && isspace((int) line[strlen(line) - 1]))
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71 line[strlen(line) - 1] = '\0';
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72
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73 push_in_list(line, value);
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74 continue;
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75 }
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76 fprintf(stderr, "CFG: orphaned line \"%s\"\n", line);
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77 }
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78 return 1;
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79 }
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80
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81 char *cfg_read(char *key)
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82 {
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83 struct list_head *n, *pos;
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84 cfg_entry_t *search_entry = NULL;
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85
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86 list_for_each_safe(pos, n, &cfg_list) {
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87 search_entry = cfg_entry(pos);
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88 if (search_entry->key) {
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89 if (!strcasecmp(search_entry->key, key)) {
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90 return search_entry->value;
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91 }
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92 }
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93 }
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94 return NULL;
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95 }
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