74 lines
3.1 KiB
Plaintext
74 lines
3.1 KiB
Plaintext
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<sect1 id="std-misc">
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<title>Compatibility with Miscellaneous Other Standards</title>
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<para>The following functions are compatible with miscellaneous other
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standards:</para>
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<sect2><title>Networking</title><para>
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<para>(Standardized by POSIX 1.g, which is probably still in draft?)</para>
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<para>accept, bind, connect, getdomainname, gethostbyaddr,
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gethostbyname, getpeername, getprotobyname, getprotobynumber,
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getservbyname, getservbyport, getsockname, getsockopt, herror, htonl,
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htons, inet_addr, inet_makeaddr, inet_netof, inet_ntoa, listen, ntohl,
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ntohs, rcmd, recv, recvfrom, rexec, rresvport, send, sendto,
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setsockopt, shutdown, socket, socketpair</para>
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<para>Of these networking calls, rexec, rcmd and rresvport are
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implemented in MS IP stack but may not be implemented in other
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vendors' stacks. </para>
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</sect2>
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<sect2><title>Other</title><para>
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chroot, closelog, cwait, dlclose, dlerror, dlfork, dlopen, dlsym,
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endgrent, ffs, fstatfs, ftime, get_osfhandle, getdtablesize, getgrent,
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gethostname, getitimer, getmntent, getpagesize, getpgid, getpwent,
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gettimeofday, grantpt, initgroups, ioctl, killpg, login, logout,
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lstat, mknod, memccpy, nice, openlog, pclose, popen, ptsname, putenv,
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random, readv, realpath, regfree, rexec, select, setegid setenv,
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seterrno, seteuid, setitimer, setmntent, setmode, setpassent, setpgrp,
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setpwent, settimeofday, sexecl, sexecle, sexeclp, sexeclpe, sexeclpe,
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sexecp, sexecv, sexecve, sexecvpe, sigpause, spawnl, spawnle, spawnlp,
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spawnlpe, spawnv, spawnve, spawnvp, spawnvpe, srandom, statfs,
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strsignal, strtosigno, swab, syslog, timezone, truncate, ttyslot,
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unlockpt, unsetenv, usleep, utimes, vfork, vhangup, wait3, wait4,
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wcscmp, wcslen, wprintf, writev
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<sect2><title>Implementation Notes</title>
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<para> <function>initgroups</function> does nothing</para>
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<para> <function>chroot</function>, <function>mknod</function>,
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<function>settimeofday</function>, and <function>vhangup</function>
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always return -1 and sets errno to ENOSYS.</para>
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<para> <function>nice</function> allows Cygwin programs to alter their
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current runtime priority through the use of its incr argument. Cygwin
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processes can be set to IDLE_PRIORITY_CLASS, NORMAL_PRIORITY_CLASS,
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HIGH_PRIORITY_CLASS, or REALTIME_PRIORITY_CLASS with the
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<function>nice</function> call. NORMAL_PRIORITY_CLASS is the
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default. If you pass a positive number to nice(), then the priority
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level will decrease by one (within the above list of priorities). A
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negative number would make it increase by one. It is not possible to
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change it by more than one at a time without making repeated calls.
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An increment above REALTIME_PRIORITY_CLASS results in the process
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staying at that priority. Likewise, a decrement to
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IDLE_PRIORITY_CLASS has it stay at that priority. Note that in the
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Win32 API, there are 32 priorities. So currently we only give access
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to four of these through <function>nice</function>.
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<para> <function>seteuid</function>, <function>setegid</function>, and
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<function>settimeofday</function> always return 0 and sets errno to
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ENOSYS.</para>
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<para><function>vfork</function> just calls
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<function>fork</function></para>
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</sect2>
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</sect1>
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