aliyun-openapi-cpp-sdk/examples/utils.h

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>

class utUtils {
 public:
  void get_dir_exec(char* dir, char* exec) {
    char* filename = nullptr;
    if (readlink("/proc/self/exe", dir, 1024) < 0) {
      dir[0] = '\0';
      return;
    }
    filename = strrchr(dir, '/');
    if (filename == nullptr) {
      dir[0] = '\0';
      return;
    }
    ++filename;
    if (exec) {
      sprintf(exec, "%s", filename);
    }

    *filename = '\0';
    return;
  }

  std::string get_env(const std::string env) {
    char* value = getenv(env.c_str());
    if (value == nullptr) {
      return std::string();
    }
    return std::string(value);
  }
};