181 lines
4.7 KiB
C
181 lines
4.7 KiB
C
#ifndef __EVIL_UNISTD_H__
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#define __EVIL_UNISTD_H__
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/*
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* Process identifer related functions
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*
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*/
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/**
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* @brief Return the process identifier of the calling process.
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*
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* @return The process ID.
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*
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* Return the process identifier of the calling process. Until
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* the process terminates, the process identifier uniquely
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* identifies the process throughout the system.
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*
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* Conformity: Not appliclable.
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*
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* Supported OS: Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP.
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*
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* @ingroup Evil
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*/
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EAPI pid_t getpid(void);
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/*
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* Symbolic links and directory related functions
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*
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*/
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/**
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* @brief Create a shell link.
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*
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* @param oldpath The file name to be linked.
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* @param newpath The file name to create.
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* @return 0 on success, -1 otherwise.
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*
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* Create a shell link @p newpath to @p oldpath (@p newpath is the
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* name of the file created, @p oldpath is the string used in
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* creating the shell link).
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*
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* On success, this function returns 0. Otherwise, it returns -1 and
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* errno may be set to the following value:
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* - ENOMEM: Not enough memory.
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*
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* On Windows, the symbolic links do not exist. Nevertheless
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* shell links can be created. This function is named like the Unix
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* function for portability reasons.
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*
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* Conformity: None.
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*
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* Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP.
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*
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* @ingroup Evil
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*/
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EAPI int symlink(const char *oldpath, const char *newpath);
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/**
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* @brief Read value of a shell link.
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*
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* @param path The file name to be linked.
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* @param buf The file name to create.
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* @param bufsiz The size of the buffer.
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* @return 0 on success, -1 otherwise.
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*
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* Place the content of the shell link @p path in the buffer
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* @p buf, which has size @p bufzsiz.
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*
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* On success, this function returns the count of characters
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* placed in the buffer. Otherwise, it returns -1 and errno may
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* be set to the following value:
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* - ENOMEM: Not enough memory.
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*
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* On Windows, the symbolic links do not exist. Nevertheless
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* shell links can be managed. This function is named like the Unix
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* function for portability reasons.
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*
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* Conformity: None.
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*
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* Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP.
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*
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* @ingroup Evil
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*/
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EAPI ssize_t readlink(const char *path, char *buf, size_t bufsiz);
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/**
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* @brief Get the current directory.
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*
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* @param buffer Buffer to store the current directory.
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* @param size Size of the buffer.
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* @return The current directory.
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*
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* On Windows desktop, use the _getcwd function in MSVCRT.
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*
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* On Windows CE, get the current directory by extracting the path
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* from the executable that is running and put the result in @p buffer
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* of length @p size. If @p size is less or equal than 0, return NULL.
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* If the current absolute path would require a buffer longer than
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* @p size elements, NULL is returned. If @p buffer is NULL, a buffer
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* of length @p size is allocated and is returned. If the allocation
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* fails, NULL is returned. On success, @p buffer is returned and
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* contains the current directory. The last '\' is not included.
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* If @p buffer is NULL, the returned value must be freed if not NULL.
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*
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* Specially usefull on WinCE where the current directory functionality
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* is not supported.
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*
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* Conformity: Almost POSIX.1 (no errno set)
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*
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* Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP, WinCE.
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*
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* @ingroup Evil
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*/
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EAPI char *evil_getcwd(char *buffer, size_t size);
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/*
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* Sockets and pipe related functions
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*
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*/
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/**
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* @brief Initiates the use of Windows sockets.
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*
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* @return 1 on success, 0 otherwise.
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*
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* Initiates the use of Windows sockets. If the function succeeds,
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* it returns 1, otherwise it returns 0.
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*
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* Conformity: Non applicable.
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*
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* Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP.
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*
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* @ingroup Evil
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*/
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EAPI int evil_sockets_init(void);
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/**
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* @brief Shutdown the Windows socket system.
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*
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* Shutdown the Windows socket system.
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*
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* Conformity: Non applicable.
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*
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* Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP.
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*
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* @ingroup Evil
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*/
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EAPI void evil_sockets_shutdown(void);
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/**
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* @brief Create a pair of sockets.
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*
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* @param fds A pointer that contains two sockets.
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*
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* Create a pair of sockets that can be use with select().
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* Hence, evil_sockets_init() must have been caled at least
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* once before. Contrary to Unix, that functions does not
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* create a pair of file descriptors.
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*
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* Conformity: Not applicable.
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*
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* Supported OS: Windows 95, Windows 98, Windows Me, Windows NT, Windows 2000,
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* Windows XP.
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*
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* @ingroup Evil
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*/
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EAPI int evil_pipe(int *fds);
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#endif /* __EVIL_UNISTD_H__ */
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