diff options
| -rw-r--r-- | ports/linux/guts/fcntl64.c | 99 | ||||
| -rw-r--r-- | ports/linux/wrapfuncs.in | 1 |
2 files changed, 100 insertions, 0 deletions
diff --git a/ports/linux/guts/fcntl64.c b/ports/linux/guts/fcntl64.c new file mode 100644 index 0000000..99de43d --- /dev/null +++ b/ports/linux/guts/fcntl64.c @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2008-2010 Wind River Systems; see + * guts/COPYRIGHT for information. + * + * SPDX-License-Identifier: LGPL-2.1-only + * + * static int + * wrap_fcntl64(int fd, int cmd, ...struct flock *lock) { + * int rc = -1; + */ +#if !defined(F_GETPIPE_SZ) +#define F_GETPIPE_SZ (1032) +#endif + +#if F_GETPIPE_SZ != 1032 +#error System F_GETPIPE_SZ has unexpected value +#endif + +#if !defined(F_SETPIPE_SZ) +#define F_SETPIPE_SZ (1031) +#endif + +#if F_SETPIPE_SZ != 1031 +#error System F_SETPIPE_SZ has unexpected value +#endif + + long arg; + int save_errno; + + /* we don't know whether we need lock or arg; grab both, which + * should be safe enough on Linuxy systems. */ + va_start(ap, cmd); + arg = va_arg(ap, long); + va_end(ap); + + switch (cmd) { + case F_DUPFD: +#ifdef F_DUPFD_CLOEXEC + case F_DUPFD_CLOEXEC: +#endif + /* actually do something */ + rc = real_fcntl64(fd, cmd, arg); + save_errno = errno; + if (rc != -1) { + pseudo_debug(PDBGF_OP, "fcntl64_dup: %d->%d\n", fd, rc); + pseudo_client_op(OP_DUP, 0, fd, rc, 0, 0); + } + errno = save_errno; + break; + case F_SETPIPE_SZ: + /* actually do something */ + rc = real_fcntl64(fd, cmd, arg); + break; + /* no argument: */ + case F_GETFD: + case F_GETFL: + case F_GETOWN: + case F_GETSIG: + case F_GETLEASE: + case F_GETPIPE_SZ: + rc = real_fcntl64(fd, cmd); + break; + /* long argument */ + case F_SETFD: + case F_SETFL: + case F_SETOWN: + case F_SETSIG: + case F_SETLEASE: + case F_NOTIFY: + rc = real_fcntl64(fd, cmd, arg); + break; + /* struct flock * argument */ + case F_GETLK: + case F_SETLK: + case F_SETLKW: +#ifdef F_OFD_GETLK + case F_OFD_GETLK: + case F_OFD_SETLK: + case F_OFD_SETLKW: +#endif + rc = real_fcntl64(fd, cmd, lock); + break; +#if defined(F_GETLK64) && (F_GETLK64 != F_GETLK) + /* the cast is safe, all struct pointers must smell the same */ + case F_GETLK64: + case F_SETLK64: + case F_SETLKW64: + rc = real_fcntl64(fd, cmd, (struct flock64 *) lock); + break; +#endif + default: + pseudo_diag("unknown fcntl64 argument %d, assuming long argument.\n", + cmd); + rc = real_fcntl64(fd, cmd, arg); + break; + } +/* return rc; + * } + */ diff --git a/ports/linux/wrapfuncs.in b/ports/linux/wrapfuncs.in index 793f5d8..97b16c2 100644 --- a/ports/linux/wrapfuncs.in +++ b/ports/linux/wrapfuncs.in @@ -13,6 +13,7 @@ int mknodat(int dirfd, const char *path, mode_t mode, dev_t dev); /* real_func=p int __xmknod(int ver, const char *path, mode_t mode, dev_t *dev); /* flags=AT_SYMLINK_NOFOLLOW */ int __xmknodat(int ver, int dirfd, const char *path, mode_t mode, dev_t *dev); /* flags=AT_SYMLINK_NOFOLLOW */ int fcntl(int fd, int cmd, ...{struct flock *lock}); /* noignore_path=1 */ +int fcntl64(int fd, int cmd, ...{struct flock *lock}); /* noignore_path=1 */ # just so we know the inums of symlinks char *canonicalize_file_name(const char *filename); int eaccess(const char *path, int mode); |