github.com/psiphon-Labs/psiphon-tunnel-core@v2.0.28+incompatible/ClientLibrary/example/main.c (about)

     1  #include "libpsiphontunnel.h"
     2  #include <stdio.h>
     3  #include <stdlib.h>
     4  #include <string.h>
     5  
     6  char *read_file(char *filename) {
     7      char *buffer = NULL;
     8      size_t size = 0;
     9  
    10      FILE *fp = fopen(filename, "r");
    11  
    12      if (!fp) {
    13          return NULL;
    14      }
    15  
    16      fseek(fp, 0, SEEK_END);
    17      size = ftell(fp);
    18  
    19      rewind(fp);
    20      buffer = malloc((size + 1) * sizeof(*buffer));
    21  
    22      fread(buffer, size, 1, fp);
    23      buffer[size] = '\0';
    24  
    25      return buffer;
    26  }
    27  
    28  int main(int argc, char *argv[]) {
    29  
    30      // load config
    31      char * const default_config = "psiphon_config";
    32  
    33      char * config = argv[1];
    34  
    35      if (!config) {
    36          config = default_config;
    37          printf("Using default config file: %s\n", default_config);
    38      }
    39  
    40      char *psiphon_config = read_file(config);
    41      if (!psiphon_config) {
    42          printf("Could not find config file: %s\n", config);
    43          return 1;
    44      }
    45  
    46      // set server list
    47      char *server_list = "";
    48  
    49      // set client platform
    50      char * const os = "OSName"; // "Android", "iOS", "Windows", etc.
    51      char * const os_version = "OSVersion"; // "4.0.4", "10.3", "10.0.10240", etc.
    52      char * const bundle_identifier = "com.example.exampleClientLibraryApp";
    53      char * client_platform = (char *)malloc(sizeof(char) * (strlen(os) + strlen(os_version) + strlen(bundle_identifier) + 4)); // 4 for 3 underscores and null terminating character
    54  
    55      int n = sprintf(client_platform, "%s_%s_%s", os, os_version, bundle_identifier);
    56  
    57      // set network ID
    58      char * const network_id = "TEST";
    59  
    60      // set timeout
    61      int32_t timeout = 60;
    62  
    63      struct Parameters params;
    64      params.sizeofStruct = sizeof(struct Parameters);
    65      params.dataRootDirectory = ".";
    66      params.clientPlatform = client_platform;
    67      params.networkID = network_id;
    68      params.establishTunnelTimeoutSeconds = &timeout;
    69  
    70      // connect 5 times
    71      for (int i = 0; i < 5; i++) {
    72          // start will return once Psiphon connects or does not connect for timeout seconds
    73          char *result = PsiphonTunnelStart(psiphon_config, server_list, &params);
    74  
    75          // print results
    76          printf("Result: %s\n", result);
    77  
    78          // The underlying memory of `result` is managed by PsiphonTunnel and is freed in Stop
    79          PsiphonTunnelStop();
    80      }
    81  
    82      free(client_platform);
    83      client_platform = NULL;
    84      free(psiphon_config);
    85      psiphon_config = NULL;
    86  }
    87