diff options
Diffstat (limited to 'include/unistd.h')
| -rw-r--r-- | include/unistd.h | 74 |
1 files changed, 72 insertions, 2 deletions
diff --git a/include/unistd.h b/include/unistd.h index 57a203dfd..6c2d1cece 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -65,13 +65,71 @@ extern char * mktemp __P ((char * __template)); extern int _clone __P ((int (*fn)(void *arg), void *child_stack, int flags, void *arg)); +/* Return the current machine's Internet number. */ +extern long int gethostid __P ((void)); -/* Make PATH be the root directory (the starting point for absolute paths). +/* Put the name of the current host in no more than LEN bytes of NAME. + The result is null-terminated if LEN is large enough for the full + name and the terminator. */ +extern int gethostname __P ((char *__name, size_t __len)); + +/* Set the name of the current host to NAME, which is LEN bytes long. This call is restricted to the super-user. */ -extern int chroot __P ((__const char *__path)); +extern int sethostname __P ((__const char *__name, size_t __len)); + + +/* Set the user ID of the calling process to UID. + If the calling process is the super-user, set the real + and effective user IDs, and the saved set-user-ID to UID; + if not, the effective user ID is set to UID. */ +extern int setuid __P ((__uid_t __uid)); + +/* Create a new session with the calling process as its leader. + The process group IDs of the session and the calling process + are set to the process ID of the calling process, which is returned. */ +extern __pid_t setsid __P ((void)); + +/* Get the real user ID of the calling process. */ +extern __uid_t getuid __P ((void)); + +/* Get the effective user ID of the calling process. */ +extern __uid_t geteuid __P ((void)); + +/* Get the real group ID of the calling process. */ +extern __gid_t getgid __P ((void)); + +/* Get the effective group ID of the calling process. */ +extern __gid_t getegid __P ((void)); + +/* If SIZE is zero, return the number of supplementary groups + the calling process is in. Otherwise, fill in the group IDs + of its supplementary groups in LIST and return the number written. */ +extern int getgroups __P ((int __size, __gid_t __list[])); + +/* Return the foreground process group ID of FD. */ +extern __pid_t tcgetpgrp __P ((int __fd)); +/* Set the foreground process group ID of FD set PGRP_ID. */ +extern int tcsetpgrp __P ((int __fd, __pid_t __pgrp_id)); +/* Get the process group ID of the calling process. + This function is different on old BSD. */ +extern __pid_t getpgrp __P ((void)); +/* Set the process group ID of the process matching PID to PGID. + If PID is zero, the current process's process group ID is set. + If PGID is zero, the process ID of the process is used. */ +extern int setpgid __P ((__pid_t __pid, __pid_t __pgid)); + +/* Get the process ID of the calling process. */ +extern __pid_t getpid __P ((void)); + + + + +/* Make PATH be the root directory (the starting point for absolute paths). + This call is restricted to the super-user. */ +extern int chroot __P ((__const char *__path)); /* Execute PATH with all arguments after PATH until a NULL pointer and environment from `environ'. */ @@ -113,6 +171,18 @@ extern __pid_t fork __P ((void)); * and the process ID of the new process to the old process. */ extern __pid_t vfork __P ((void)); +/* Return the number of bytes in a page. This is the system's page size, + which is not necessarily the same as the hardware page size. */ +extern int getpagesize __P ((void)) __attribute__ ((__const__)); + +#ifdef __USE_POSIX2 +/* Get definitions and prototypes for functions to process the + arguments in ARGV (ARGC of them, minus the program name) for + options given in OPTS. */ +# define __need_getopt +# include <getopt.h> +#endif + #ifndef SEEK_SET #define SEEK_SET 0 |