src_test/test_config2.c

   1 /*
   2  * test_w1.cc
   3  *
   4  *  Created on: Oct 20, 2010
   5  *      Author: lamikr
   6  */
   7 #include <string.h>
   8 #include <errno.h>
   9 #include <stdlib.h>
  10 #include <unistd.h>
  11 #include <uci.h>
  12
  13 #include "log.h"
  14 #include "config.h"
  15
  16 /*
  17 static int uci_do_add(int argc, char **argv)
  18 {
  19         struct uci_package *p = NULL;
  20         struct uci_section *s = NULL;
  21         int ret;
  22
  23         if (argc != 3)
  24                 return 255;
  25
  26         ret = uci_load(ctx, argv[1], &p);
  27         if (ret != UCI_OK)
  28                 goto done;
  29
  30         ret = uci_add_section(ctx, p, argv[2], &s);
  31         if (ret != UCI_OK)
  32                 goto done;
  33
  34         ret = uci_save(ctx, p);
  35
  36 done:
  37         if (ret != UCI_OK)
  38                 cli_perror();
  39         else if (s)
  40                 fprintf(stdout, "%s\n", s->e.name);
  41         return ret;
  42 }
  43 */
  44
  45 static int uci_create_named_section(struct uci_context *ctx, const char *conf_file_name, const char *section_type, const char *section_name)
  46 {
  47         struct uci_ptr          ptr;
  48         int                     ret_val;
  49         char                    *cmd_data;
  50         int                     len;
  51
  52         ret_val = -1;
  53         if ((ctx != NULL) &&
  54             (conf_file_name != NULL) &&
  55             (section_type != NULL) &&
  56             (section_name != NULL)) {
  57                 len             = strlen(conf_file_name);
  58                 len             = len + 1;
  59                 len             = len + strlen(section_type);
  60                 len             = len + 1;
  61                 len             = len + strlen(section_name);
  62                 len             = len + 1;
  63                 cmd_data        = malloc(len);
  64                 snprintf(cmd_data, len, "%s.%s=%s", conf_file_name, section_name, section_type);
  65                 if (uci_lookup_ptr(ctx, &ptr, cmd_data, true) == UCI_OK) {
  66                         ret_val = uci_set(ctx, &ptr);
  67                         if (ret_val == UCI_OK) {
  68                                 //ret_val       = uci_save(ctx, ptr.p);
  69                         }
  70                 }
  71         }
  72         return ret_val;
  73 }
  74
  75 bool set_config_value2(const char *conf_dir_name,
  76                         const char *conf_file_name,
  77                         const char *section_type,
  78                         const char *section_name,
  79                         const char *key,
  80                         const char *value) {
  81         struct uci_context      *ctx;
  82         struct uci_package      *pkg;
  83         struct uci_section      *sct;
  84         struct uci_section      *tmp_sct;
  85         struct uci_option       *opt;
  86         int                     err_flg;
  87         char                    *fname;
  88         int                     b_count;
  89         bool                    save;
  90         struct uci_element      *elem;
  91         struct uci_ptr          ptr;
  92         FILE                    *fp;
  93         bool                    ret_val;
  94
  95         ret_val = false;
  96         save    = false;
  97         if ((conf_dir_name != NULL) &&
  98             (conf_file_name != NULL) &&
  99             (section_type != NULL) &&
 100             (section_name != NULL) &&
 101             (key != NULL) &&
 102             (value != NULL)) {
 103                 b_count = strlen(conf_dir_name) + strlen(conf_file_name) + 10;
 104                 fname   = (char *)calloc(1, b_count);
 105                 if (fname != NULL) {
 106                         strncpy(fname, conf_dir_name, b_count);
 107                         strncat(fname, "/", 1);
 108                         strncat(fname, conf_file_name, strlen(conf_file_name) + 1);
 109                         ctx     = uci_alloc_context();
 110                         if (ctx != NULL) {
 111                                 sct     = NULL;
 112                                 uci_set_confdir(ctx, conf_dir_name);
 113                                 if (access(fname, W_OK) != 0) {
 114                                         if (access(fname, F_OK) != 0) {
 115                                                 fp      = fopen(fname, "w+");
 116                                                 fclose(fp);
 117                                         }
 118                                 }
 119                                 if (access(fname, W_OK) == 0) {
 120                                         err_flg = uci_load(ctx, fname, &pkg);
 121                                         uci_foreach_element(&pkg->sections, elem) {
 122                                                 tmp_sct = uci_to_section(elem);
 123                                                 if (strcmp(tmp_sct->type, section_type) == 0) {
 124                                                         sct     = tmp_sct;
 125                                                         break;
 126                                                 }
 127                                         }
 128                                         if (sct == NULL) {
 129                                                 log_debug("Creating configuration section %s to configuration file: %s\n", section_name, fname);
 130                                                 //err_flg       = uci_add_named_section(ctx, pkg, section_type, section_name, &sct);
 131                                                 //err_flg       = uci_add_section(ctx, pkg, section_name, &sct);
 132                                                 err_flg = uci_create_named_section(ctx, conf_file_name, section_type, section_name);
 133                                                 if (err_flg == UCI_OK) {
 134                                                         uci_foreach_element(&pkg->sections, elem) {
 135                                                                 tmp_sct = uci_to_section(elem);
 136                                                                 if (strcmp(tmp_sct->type, section_type) == 0) {
 137                                                                         sct     = tmp_sct;
 138                                                                         break;
 139                                                                 }
 140                                                         }
 141                                                 }
 142                                         }
 143                                         if (err_flg == 0) {
 144                                                 opt     = uci_lookup_option(ctx, sct, key);
 145                                                 if (opt != NULL) {
 146                                                         memset(&ptr, 0, sizeof(ptr));
 147                                                         ptr.package     = pkg->e.name;
 148                                                         ptr.section     = sct->e.name;
 149                                                         ptr.option      = key;
 150
 151                                                         if (uci_lookup_ptr(ctx, &ptr, NULL, false) == UCI_OK) {
 152                                                                 ptr.value       = strdup(value);
 153                                                                 uci_set(ctx, &ptr);
 154                                                                 save    = true;
 155                                                         }
 156                                                 }
 157                                                 else {
 158                                                         opt     = uci_alloc_option(sct, key, value);
 159                                                         save    = true;
 160                                                 }
 161                                                 if (save == true) {
 162                                                         uci_save(ctx, pkg);
 163                                                 }
 164                                                 uci_free_context(ctx);
 165                                                 ret_val = true;
 166                                         }
 167                                         else {
 168                                                 log_error("Could not write to configuration file: %s\n. Could not create section %s.", fname, section_name);
 169                                         }
 170                                 }
 171                                 else {
 172                                         log_error("Could not write to configuration file: %s\n. File does not exist or is not writable.", fname);
 173                                 }
 174                         }
 175                         free(fname);
 176                 }
 177                 else {
 178                         log_error("Could not change config value, out of memory");
 179                 }
 180         }
 181         else {
 182                 log_error("Could not change config value, invalid parameters");
 183         }
 184         return ret_val;
 185 }
 186
 187 void test_config() {
 188         char work_dir[FILENAME_MAX];
 189
 190         getcwd(work_dir, sizeof(work_dir));
 191         printf("working directory: %s\n", work_dir);
 192
 193         set_config_value2(work_dir,
 194                         "dev_cfg_txt",
 195                         "mysection_type",
 196                         "mysection_name",
 197                         "myoption_name",
 198                         "my_option_value");
 199         set_config_value2(work_dir,
 200                         "dev_cfg_txt",
 201                         "mysection_type",
 202                         "mysection_name",
 203                         "myoption_name",
 204                         "my_option_value2");
 205 }
 206
 207 int main(int argc, char** argv) {
 208         test_config();
 209         return 0;
 210 }