diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/bsd/getpt.c | 74 | ||||
| -rw-r--r-- | sysdeps/unix/bsd/ptsname.c | 78 | ||||
| -rw-r--r-- | sysdeps/unix/bsd/unlockpt.c | 20 | ||||
| -rw-r--r-- | sysdeps/unix/grantpt.c | 150 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/getpt.c | 51 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/grantpt.c | 64 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ptsname.c | 141 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc64/socket.S | 80 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/unlockpt.c | 20 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/sysv4/bits/utsname.h | 4 |
10 files changed, 498 insertions, 184 deletions
diff --git a/sysdeps/unix/bsd/getpt.c b/sysdeps/unix/bsd/getpt.c index 3bc34b1814..ec339c8335 100644 --- a/sysdeps/unix/bsd/getpt.c +++ b/sysdeps/unix/bsd/getpt.c @@ -17,43 +17,67 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include <sys/types.h> -#include <fcntl.h> #include <errno.h> -#include <stdlib.h> +#include <fcntl.h> +#include <string.h> +#include <unistd.h> + + +/* Prefix for master pseudo terminal nodes. */ +#define _PATH_PTY "/dev/pty" -#include "pty-internal.h" -/* Per the FreeBSD-3.0 manpages: pty masters are named - /dev/pty[p-sP-S][0-9a-v]. I hope EIO is the right - errno in the "already open" case; it doesn't say. */ -static const char pn1[] = "pqrsPQRS"; -static const char pn2[] = "0123456789abcdefghijklmnopqrstuv"; +/* Letters indicating a series of pseudo terminals. */ +#ifndef PTYNAME1 +#define PTYNAME1 "pqrsPQRS" +#endif +const char *__libc_ptyname1 = PTYNAME1; -/* Open the master side of a pseudoterminal and return its file - descriptor, or -1 on error. BSD version. */ +/* Letters indicating the position within a series. */ +#ifndef PTYNAME2 +#define PTYNAME2 "0123456789abcdefghijklmnopqrstuv"; +#endif +const char *__libc_ptyname2 = PTYNAME2; + + +/* Open a master pseudo terminal and return its file descriptor. */ int -__getpt () +__getpt (void) { - int fd; - const char *i, *j; - char namebuf[PTYNAMELEN]; + char buf[sizeof (_PATH_PTY) + 2]; + const char *p, *q; + char *s; + + s = __stpcpy (buf, _PATH_PTY); + s[0] = '?'; + s[1] = '?'; + s[2] = 0; - strcpy (namebuf, "/dev/pty"); - namebuf[10] = '\0'; - for (i = pn1; *i; ++i) + for (p = __libc_ptyname1; *p; p++) { - namebuf[8] = *i; - for (j = pn2; *j; ++j) - { - namebuf[9] = *j; - fd = open (namebuf, O_RDWR); + s[0] = *p; + + for (q = __libc_ptyname2; *q; q++) + { + int fd; + + s[1] = *q; + + fd = __open (buf, O_RDWR); if (fd != -1) - return fd; + { + if (__isatty (fd)) + return fd; + + __close (fd); + continue; + } + if (errno != EIO) return -1; - } + } } + __set_errno (ENFILE); return -1; } diff --git a/sysdeps/unix/bsd/ptsname.c b/sysdeps/unix/bsd/ptsname.c new file mode 100644 index 0000000000..83e3890e7c --- /dev/null +++ b/sysdeps/unix/bsd/ptsname.c @@ -0,0 +1,78 @@ +/* Copyright (C) 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <paths.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <unistd.h> + +/* Static buffer for `ptsname'. */ +static char buffer[sizeof (_PATH_TTY) + 2]; + + +/* Return the pathname of the pseudo terminal slave assoicated with + the master FD is open on, or NULL on errors. + The returned storage is good until the next call to this function. */ +char * +ptsname (int fd) +{ + return __ptsname_r (fd, buffer, sizeof (buffer)) != 0 ? NULL : buffer; +} + + +/* Store at most BUFLEN characters of the pathname of the slave pseudo + terminal associated with the master FD is open on in BUF. + Return 0 on success, otherwise an error number. */ +int +__ptsname_r (int fd, char *buf, size_t buflen) +{ + int save_errno = errno; + struct stat st; + + if (buf == NULL) + { + __set_errno (EINVAL); + return EINVAL; + } + + if (!__isatty (fd)) + { + __set_errno (ENOTTY); + return ENOTTY; + } + + if (buflen < strlen (_PATH_TTY) + 3) + { + __set_errno (ERANGE); + return ERANGE; + } + + if (__ttyname_r (fd, buf, buflen) != 0) + return errno; + + buf[sizeof (_PATH_DEV) - 1] = 't'; + + if (__stat (buf, &st) < 0) + return errno; + + __set_errno (save_errno); + return 0; +} +weak_alias (__ptsname_r, ptsname_r) diff --git a/sysdeps/unix/bsd/unlockpt.c b/sysdeps/unix/bsd/unlockpt.c index b25231c865..de4db5a48e 100644 --- a/sysdeps/unix/bsd/unlockpt.c +++ b/sysdeps/unix/bsd/unlockpt.c @@ -17,25 +17,21 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <paths.h> #include <stdlib.h> +#include <string.h> #include <unistd.h> -#include "pty-internal.h" - -/* Given a fd on a master pseudoterminal, clear a kernel lock so that - the slave can be opened. This is to avoid a race between opening the - master and calling grantpt() to take possession of the slave. - - BSD doesn't have this lock, but what it does have is revoke(). */ +/* Unlock the slave pseudo terminal associated with the master pseudo + terminal specified by FD. */ int -unlockpt (fd) - int fd; +unlockpt (int fd) { - char buf[PTYNAMELEN]; + char buf[sizeof (_PATH_TTY) + 2]; - if (__ptsname_r (fd, buf, PTYNAMELEN)) + /* BSD doesn't have a lock, but it does have `revoke'. */ + if (__ptsname_r (fd, buf, sizeof (buf))) return -1; - return revoke (buf); } diff --git a/sysdeps/unix/grantpt.c b/sysdeps/unix/grantpt.c index 5d33a515f1..d216baa476 100644 --- a/sysdeps/unix/grantpt.c +++ b/sysdeps/unix/grantpt.c @@ -17,65 +17,158 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <assert.h> #include <errno.h> +#include <grp.h> +#include <limits.h> #include <stdlib.h> -#include <unistd.h> +#include <string.h> #include <sys/resource.h> #include <sys/stat.h> #include <sys/types.h> #include <sys/wait.h> +#include <unistd.h> -#include <assert.h> +#include "pty-private.h" + + +/* Return the result of ptsname_r in the buffer pointed to by PTS, + which should be of length BUF_LEN. If it is too long to fit in + this buffer, a sufficiently long buffer is allocated using malloc, + and returned in PTS. 0 is returned upon success, -1 otherwise. */ +static int +pts_name (int fd, char **pts, size_t buf_len) +{ + int rv; + char *buf = *pts; + + for (;;) + { + char *new_buf; + + if (buf_len) + { + rv = ptsname_r (fd, buf, buf_len); + + if (rv != 0 || memchr (buf, '\0', buf_len)) + /* We either got an error, or we succeeded and the + returned name fit in the buffer. */ + break; + + /* Try again with a longer buffer. */ + buf_len += buf_len; /* Double it */ + } + else + /* No initial buffer; start out by mallocing one. */ + buf_len = 128; /* First time guess. */ -#include "pty-internal.h" + if (buf != *pts) + /* We've already malloced another buffer at least once. */ + new_buf = realloc (buf, buf_len); + else + new_buf = malloc (buf_len); + if (! new_buf) + { + rv = -1; + __set_errno (ENOMEM); + break; + } + buf = new_buf; + } -/* Given a fd on a master pseudoterminal, chown the file associated - with the slave to the calling process, and set its group and - mode appropriately. Note that this is an unprivileged operation. */ + if (rv == 0) + *pts = buf; /* Return buffer to the user. */ + else if (buf != *pts) + free (buf); /* Free what we malloced when returning an error. */ -/* This "generic Unix" implementation works because we provide the program - /usr/libexec/pt_chown, and it only depends on ptsname() working. */ -static const char helper[] = LIBEXECDIR "/pt_chown"; -static const char *const argv[] = { "pt_chown", NULL }; + return rv; +} +/* Change the ownership and access permission of the slave pseudo + terminal associated with the master pseudo terminal specified + by FD. */ int -grantpt (fd) - int fd; +grantpt (int fd) { +#ifdef PATH_MAX + char _buf[PATH_MAX]; +#else + char _buf[512]; +#endif + char *buf = _buf; struct stat st; - int w, pid; - char namebuf[PTYNAMELEN]; - - /* Some systems do it for us. */ - if (__ptsname_r (fd, namebuf, PTYNAMELEN) != 0) + char *grtmpbuf; + struct group grbuf; + size_t grbuflen = __sysconf (_SC_GETGR_R_SIZE_MAX); + struct group *p; + uid_t uid; + gid_t gid; + pid_t pid; + + if (pts_name (fd, &buf, sizeof (_buf))) return -1; - if (__xstat (_STAT_VER, namebuf, &st) != 0) + + if (__stat (buf, &st) < 0) return -1; - if (st.st_uid == __getuid ()) - return 0; + /* Make sure that we own the device. */ + uid = __getuid (); + if (st.st_uid != uid) + { + if (__chown (buf, uid, st.st_gid) < 0) + goto helper; + } + + /* Get the group ID of the special `tty' group. */ + if (grbuflen == -1) + /* `sysconf' does not support _SC_GETGR_R_SIZE_MAX. + Try a moderate value. */ + grbuflen = 1024; + grtmpbuf = (char *) __alloca (grbuflen); + getgrnam_r (TTY_GROUP, &grbuf, grtmpbuf, grbuflen, &p); + gid = p ? p->gr_gid : __getgid (); + + /* Make sure the group of the device is that special group. */ + if (st.st_gid != gid) + { + if (__chown (buf, uid, gid) < 0) + goto helper; + } + + /* Make sure the permission mode is set to readable and writable by + the owner, and writable by the group. */ + if ((st.st_mode & ACCESSPERMS) != (S_IRUSR|S_IWUSR|S_IWGRP)) + { + if (__chmod (buf, S_IRUSR|S_IWUSR|S_IWGRP) < 0) + goto helper; + } + + return 0; - /* We have to do it in user space. */ + /* We have to use the helper program. */ + helper: pid = __fork (); if (pid == -1) return -1; else if (pid == 0) { - /* Disable core dumps in the child. */ - struct rlimit off = { 0, 0 }; - setrlimit (RLIMIT_CORE, &off); + /* Disable core dumps. */ + struct rlimit rl = { 0, 0 }; + setrlimit (RLIMIT_CORE, &rl); - /* The helper does its thing on fd PTY_FD. */ - if (fd != PTY_FD) - if (__dup2 (fd, PTY_FD) == -1) + /* We pase the master pseudo terminal as file descriptor PTY_FILENO. */ + if (fd != PTY_FILENO) + if (__dup2 (fd, PTY_FILENO) < 0) _exit (FAIL_EBADF); - __execve (helper, (char *const *) argv, 0); + execle (_PATH_PT_CHOWN, basename (_PATH_PT_CHOWN), NULL, NULL); _exit (FAIL_EXEC); } else { + int w; + if (__waitpid (pid, &w, 0) == -1) return -1; if (!WIFEXITED (w)) @@ -106,6 +199,5 @@ grantpt (fd) } } - /* Success. */ return 0; } diff --git a/sysdeps/unix/sysv/linux/getpt.c b/sysdeps/unix/sysv/linux/getpt.c index 0f5949d1bc..8165eccc1b 100644 --- a/sysdeps/unix/sysv/linux/getpt.c +++ b/sysdeps/unix/sysv/linux/getpt.c @@ -17,33 +17,26 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include <sys/types.h> -#include <fcntl.h> #include <errno.h> +#include <fcntl.h> #include <stdlib.h> -#include <string.h> -#include "pty-internal.h" +/* Path to the master pseudo terminal cloning device. */ +#define _PATH_DEVPTMX "/dev/ptmx" -/* Per Documentation/devices.txt: pty masters are /dev/pty[p-za-e][0-9a-f]. - These strings are used also in ptsname.c. */ -const char __ptyname1[] = "pqrstuvwxyzabcde"; -const char __ptyname2[] = "0123456789abcdef"; +/* Prototype for function that opens BSD-style master pseudo-terminals. */ +int __bsd_getpt (void); -/* Open the master side of a pseudoterminal and return its file - descriptor, or -1 on error. Linux version. */ +/* Open a master pseudo terminal and return its file descriptor. */ int -__getpt () +__getpt (void) { - int fd; - const char *i, *j; static int have_dev_ptmx = 1; - char namebuf[PTYNAMELEN]; + int fd; - /* The new way: */ if (have_dev_ptmx) { - fd = __open ("/dev/ptmx", O_RDWR); + fd = __open (_PATH_DEVPTMX, O_RDWR); if (fd != -1) return fd; else @@ -55,23 +48,11 @@ __getpt () } } - /* The old way: */ - strcpy (namebuf, "/dev/pty"); - namebuf[10] = '\0'; - for (i = __ptyname1; *i; ++i) - { - namebuf[8] = *i; - for (j = __ptyname2; *j; ++j) - { - namebuf[9] = *j; - fd = __open (namebuf, O_RDWR); - if (fd != -1) - return fd; - if (errno != EIO) - return -1; - } - } - __set_errno (ENFILE); - return -1; + return __bsd_getpt (); } -weak_alias (__getpt, getpt) + +#define PTYNAME1 "pqrstuvwxyzabcde"; +#define PTYNAME2 "0123456789abcdef"; + +#define __getpt __bsd_getpt +#include <sysdeps/unix/bsd/getpt.c> diff --git a/sysdeps/unix/sysv/linux/grantpt.c b/sysdeps/unix/sysv/linux/grantpt.c new file mode 100644 index 0000000000..668f13192e --- /dev/null +++ b/sysdeps/unix/sysv/linux/grantpt.c @@ -0,0 +1,64 @@ +/* Copyright (C) 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <limits.h> +#include <stdlib.h> +#include <sys/statfs.h> + +/* Constant that identifies the `devpts' filesystem. */ +#define DEVPTS_SUPER_MAGIC 0x1cd1 + +/* Prototype for function that changes ownership and access permission + for slave pseudo terminals that do not live on a `devpts' + filesystem. */ +int __unix_grantpt (int fd); + +/* Prototype for private function that gets the name of the slave + pseudo terminal in a safe way. */ +static int pts_name (int fd, char **pts, size_t buf_len); + +/* Change the ownership and access permission of the slave pseudo + terminal associated with the master pseudo terminal specified + by FD. */ +int +grantpt (int fd) +{ + struct statfs fsbuf; +#ifdef PATH_MAX + char _buf[PATH_MAX]; +#else + char _buf[512]; +#endif + char *buf = _buf; + + if (pts_name (fd, &buf, sizeof (_buf))) + return -1; + + if (__statfs (buf, &fsbuf) < 0) + return -1; + + /* If the slave pseudo terminal lives on a `devpts' filesystem, the + ownership and access permission are already set. */ + if (fsbuf.f_type == DEVPTS_SUPER_MAGIC) + return 0; + + return __unix_grantpt (fd); +} + +#define grantpt __unix_grantpt +#include <sysdeps/unix/grantpt.c> diff --git a/sysdeps/unix/sysv/linux/ptsname.c b/sysdeps/unix/sysv/linux/ptsname.c index 052516c7ac..048ac96551 100644 --- a/sysdeps/unix/sysv/linux/ptsname.c +++ b/sysdeps/unix/sysv/linux/ptsname.c @@ -17,50 +17,50 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include <sys/types.h> +#include <errno.h> +#include <paths.h> +#include <stdlib.h> +#include <string.h> #include <sys/ioctl.h> #include <sys/stat.h> +#include <sys/sysmacros.h> #include <termios.h> -#include <string.h> -#include <errno.h> -#include <stdlib.h> #include <unistd.h> -#include "pty-internal.h" - #include <stdio-common/_itoa.h> -#include <sys/sysmacros.h> -/* Given the file descriptor of a master pty, return the pathname - of the associated slave. */ +/* Directory where we can find the slave pty nodes. */ +#define _PATH_DEVPTS "/dev/pts/" -static char namebuf[PTYNAMELEN]; -extern const char __ptyname1[], __ptyname2[]; /* Defined in getpt.c. */ +/* The are declared in getpt.c. */ +extern const char *__libc_ptyname1; +extern const char *__libc_ptyname2; +/* Static buffer for `ptsname'. */ +static char buffer[sizeof (_PATH_DEVPTS) + 20]; + + +/* Return the pathname of the pseudo terminal slave assoicated with + the master FD is open on, or NULL on errors. + The returned storage is good until the next call to this function. */ char * -ptsname (fd) - int fd; +ptsname (int fd) { - return __ptsname_r (fd, namebuf, PTYNAMELEN) != 0 ? NULL : namebuf; + return __ptsname_r (fd, buffer, sizeof (buffer)) != 0 ? NULL : buffer; } + +/* Store at most BUFLEN characters of the pathname of the slave pseudo + terminal associated with the master FD is open on in BUF. + Return 0 on success, otherwise an error number. */ int -__ptsname_r (fd, buf, buflen) - int fd; - char *buf; - size_t buflen; +__ptsname_r (int fd, char *buf, size_t buflen) { + int save_errno = errno; struct stat st; - int save = errno; int ptyno; - char nbuf[PTYNAMELEN], idbuf[6]; - char *cp; - -#ifdef TIOCGPTN - static int tiocgptn_works = 1; -#endif - - if (!buf) + + if (buf == NULL) { __set_errno (EINVAL); return EINVAL; @@ -73,61 +73,60 @@ __ptsname_r (fd, buf, buflen) } #ifdef TIOCGPTN - if (tiocgptn_works) + if (__ioctl (fd, TIOCGPTN, &ptyno) == 0) { - if (__ioctl (fd, TIOCGPTN, &ptyno) == 0) - goto gotit; - else + /* Buffer we use to print the number in. For a maximum size for + `int' of 8 bytes we never need more than 20 digits. */ + char numbuf[21]; + const char *devpts = _PATH_DEVPTS; + const size_t devptslen = strlen (devpts); + char *p; + + numbuf[20] = '\0'; + p = _itoa_word (ptyno, &numbuf[20], 10, 0); + + if (buflen < devptslen + strlen (p) + 1) { - if(errno != EINVAL) - return errno; - else - tiocgptn_works = 0; + __set_errno (ERANGE); + return ERANGE; } - } -#endif - if (__fxstat (_STAT_VER, fd, &st) < 0) - return errno; - ptyno = minor (st.st_rdev); - if (major (st.st_rdev) == 4) - ptyno -= 128; - -#ifdef TIOCGPTN - gotit: + __stpcpy (__stpcpy (buf, devpts), p); + } + else if (errno == EINVAL) #endif - /* Two different possible naming schemes for pty slaves: - the SVr4 way. */ - - idbuf[5] = '\0'; - __stpcpy (__stpcpy (nbuf, "/dev/pts/"), - _itoa_word (ptyno, &idbuf[5], 10, 0)); - if (__xstat (_STAT_VER, nbuf, &st) < 0) { - if (errno != ENOENT) - return errno; - - /* ...and the BSD way. */ - nbuf[5] = 't'; - nbuf[7] = 'y'; - nbuf[8] = __ptyname1[ptyno / 16]; - nbuf[9] = __ptyname2[ptyno % 16]; - nbuf[10] = '\0'; + char *p; + + if (buflen < strlen (_PATH_TTY) + 3) + { + __set_errno (ERANGE); + return ERANGE; + } - if (__xstat (_STAT_VER, nbuf, &st) < 0) + if (__fstat (fd, &st) < 0) return errno; - } - if (buflen < strlen (nbuf) + 1) - { - __set_errno (ERANGE); - return ERANGE; - } + ptyno = minor (st.st_rdev); + if (major (st.st_rdev) == 4) + ptyno -= 128; - cp = __stpncpy (buf, nbuf, buflen); - cp[0] = '\0'; + if (ptyno / 16 >= strlen (__libc_ptyname1)) + { + __set_errno (ENOTTY); + return ENOTTY; + } + + p = __stpcpy (buf, _PATH_TTY); + p[0] = __libc_ptyname1[ptyno / 16]; + p[1] = __libc_ptyname2[ptyno % 16]; + p[2] = '\0'; + } + + if (__stat (buf, &st) < 0) + return errno; - __set_errno (save); + __set_errno (save_errno); return 0; } weak_alias (__ptsname_r, ptsname_r) diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/socket.S b/sysdeps/unix/sysv/linux/sparc/sparc64/socket.S new file mode 100644 index 0000000000..84f2eeca2f --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/socket.S @@ -0,0 +1,80 @@ +/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sysdep.h> +#include <socketcall.h> + +#define P(a, b) P2(a, b) +#define P2(a, b) a##b + +#ifndef NARGS +#ifdef socket +#error NARGS not defined +#endif +#define NARGS 3 +#endif + + .text +/* The socket-oriented system calls are handled unusually in Linux. + They are all gated through the single `socketcall' system call number. + `socketcall' takes two arguments: the first is the subcode, specifying + which socket function is being called; and the second is a pointer to + the arguments to the specific function. + + The .S files for the other calls just #define socket and #include this. */ + +#ifndef __socket +#define __socket P(__,socket) +#endif + +.globl __socket +ENTRY (__socket) + + /* Drop up to 6 arguments (recvfrom) into the memory allocated by + the caller for varargs, since that's really what we have. */ + stx %o0, [%sp + STACK_BIAS + 128 + 0] + stx %o1, [%sp + STACK_BIAS + 128 + 8] +#if NARGS > 2 + stx %o2, [%sp + STACK_BIAS + 128 + 16] +#if NARGS > 3 + stx %o3, [%sp + STACK_BIAS + 128 + 24] +#if NARGS > 4 + stx %o4, [%sp + STACK_BIAS + 128 + 32] +#if NARGS > 5 + stx %o5, [%sp + STACK_BIAS + 128 + 40] +#endif +#endif +#endif +#endif + + mov P(SOCKOP_,socket), %o0 /* arg 1: socket subfunction */ + add %sp, STACK_BIAS + 128, %o1 /* arg 2: parameter block */ + LOADSYSCALL(socketcall) + ta 0x6d + + bcs,pn %xcc, 1f + nop + retl + nop + +1: SYSCALL_ERROR_HANDLER + +END (__socket) + +weak_alias (__socket, socket) diff --git a/sysdeps/unix/sysv/linux/unlockpt.c b/sysdeps/unix/sysv/linux/unlockpt.c index e20545fe80..4df33198ef 100644 --- a/sysdeps/unix/sysv/linux/unlockpt.c +++ b/sysdeps/unix/sysv/linux/unlockpt.c @@ -17,33 +17,33 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include <sys/ioctl.h> -#include <termios.h> #include <errno.h> #include <stdlib.h> +#include <sys/ioctl.h> +#include <termios.h> + -/* Given a fd on a master pseudoterminal, clear a kernel lock so that - the slave can be opened. This is to avoid a race between opening the - master and calling grantpt() to take possession of the slave. */ +/* Unlock the slave pseudo terminal associated with the master pseudo + terminal specified by FD. */ int -unlockpt (fd) - int fd __attribute__ ((unused)); +unlockpt (int fd) { #ifdef TIOCSPTLCK - int serrno = errno; + int save_errno = errno; int unlock = 0; if (__ioctl (fd, TIOCSPTLCK, &unlock)) { if (errno == EINVAL) { - __set_errno (serrno); + __set_errno (save_errno); return 0; } else return -1; } #endif - /* On pre-/dev/ptmx kernels this function should be a no-op. */ + /* If we have no TIOCSPTLCK ioctl, all slave pseudo terminals are + unlocked by default. */ return 0; } diff --git a/sysdeps/unix/sysv/sysv4/bits/utsname.h b/sysdeps/unix/sysv/sysv4/bits/utsname.h index bf2c0a8da5..dfe46b851b 100644 --- a/sysdeps/unix/sysv/sysv4/bits/utsname.h +++ b/sysdeps/unix/sysv/sysv4/bits/utsname.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,7 +16,7 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#ifndef _UTSNAME_H +#ifndef _SYS_UTSNAME_H # error "Never include <bits/utsname.h> directly; use <sys/utsname.h> instead." #endif |