lnx_utils.h

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#pragma once
#include <fcntl.h>
#include <filesystem>
#include <grp.h>
#include <misc/gen/TStrings.h>
#include <misc/gen/system.h>
#include <misc/global.h>
#include <pwd.h>
 
namespace sf
{
 
_MISC_FUNC bool kb_hit();
 
_MISC_FUNC pid_t gettid() noexcept;
 
_MISC_FUNC bool getFiles(strings& files, const std::string& directory, const std::string& wildcard);
 
_MISC_FUNC bool file_write(const char* path, const void* buf, size_t sz, bool append = false);
 
inline bool file_write(const std::string& path, const void* buf, size_t sz, bool append = false)
{
  return file_write(path.c_str(), buf, sz, append);
}
 
inline bool file_write(const std::string& path, const std::string& s, bool append = false)
{
  return file_write(path.c_str(), s.c_str(), s.length(), append);
}
 
_MISC_FUNC std::filesystem::path file_fd_path(int fd);
 
typedef struct stat stat_t;
 
_MISC_FUNC bool file_stat(const std::string& path, stat_t& _stat);
 
_MISC_FUNC std::string time_format(const struct tm* time_info, const char* format = nullptr);
 
_MISC_FUNC std::string time_format(time_t time = -1, const char* format = nullptr, bool gm_time = false);
 
_MISC_FUNC time_t time_str2time(const std::string& str, const char* format = nullptr, bool gm_time = false);
 
_MISC_FUNC time_t time_mktime(struct tm* tm, bool gm_time = false);
 
_MISC_FUNC bool file_mkdir(const char* path, __mode_t mode = 0755);
 
inline bool file_mkdir(const std::string& path, __mode_t mode = 0755)
{
  return file_mkdir(path.c_str(), mode);
}
 
typedef struct passwd passwd_type;
 
struct passwd_t : public passwd_type
{
  public:
    passwd_t();
 
    ~passwd_t();
 
    //
    explicit inline operator bool() const
    {
      return valid;
    }
 
  private:
    void reset();
 
    ssize_t buf_sz{0};
    char* buf{nullptr};
    bool valid{};
 
    friend bool proc_getpwnam(std::string name, passwd_t& pwd);
 
    friend bool proc_getpwuid(uid_t uid, passwd_t& pwd);
};
 
bool proc_getpwnam(std::string name, passwd_t& pwd);
 
bool proc_getpwuid(uid_t uid, passwd_t& pwd);
 
void proc_setuid(uid_t uid);
 
void proc_seteuid(uid_t uid);
 
typedef struct group group_type;
 
struct group_t : public group_type
{
  public:
    group_t();
 
    ~group_t();
 
    explicit operator bool() const
    {
      return valid;
    }
 
  private:
    void reset();
 
    ssize_t buf_sz{0};
    char* buf{nullptr};
    bool valid{false};
 
    friend bool proc_getgrnam(const std::string& name, group_t& grp);
 
    friend bool proc_getgrgid(gid_t gid, group_t& grp);
};
 
_MISC_FUNC bool proc_getgrnam(const std::string& name, group_t& grp);
 
_MISC_FUNC bool proc_getgrgid(gid_t gid, group_t& grp);
 
_MISC_FUNC void proc_setgid(gid_t gid);
 
_MISC_FUNC void proc_setegid(gid_t gid);
 
_MISC_FUNC void proc_setfsuid(uid_t uid);
 
_MISC_FUNC void proc_setfsgid(gid_t gid);
 
int _MISC_FUNC siginterrupt(int sig, int flag);
 
}// namespace sf