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author | Roland McGrath <roland@gnu.org> | 2004-02-11 02:01:22 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2004-02-11 02:01:22 +0000 |
commit | ada24e76804cb94acd87277dc4c405745fd30b1c (patch) | |
tree | ddabbea4ca10a0b347acde2d06464095169bde88 /sysdeps/mach/hurd/sendmsg.c | |
parent | a921ebe75a6859cc56ccf34e6a11e4e67520b7dd (diff) | |
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* sysdeps/mach/hurd/times.c (__times): Use union instead of cast.
* sysdeps/mach/hurd/sendmsg.c (__libc_sendmsg): Likewise.
Diffstat (limited to 'sysdeps/mach/hurd/sendmsg.c')
-rw-r--r-- | sysdeps/mach/hurd/sendmsg.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/sysdeps/mach/hurd/sendmsg.c b/sysdeps/mach/hurd/sendmsg.c index 71975c58c5..5fdfd734ec 100644 --- a/sysdeps/mach/hurd/sendmsg.c +++ b/sysdeps/mach/hurd/sendmsg.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2001, 2002 Free Software Foundation, Inc. +/* Copyright (C) 2001,2002,2004 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 @@ -35,7 +35,11 @@ __libc_sendmsg (int fd, const struct msghdr *message, int flags) struct sockaddr_un *addr = message->msg_name; socklen_t addr_len = message->msg_namelen; addr_port_t aport = MACH_PORT_NULL; - char *data = NULL; + union + { + char *ptr; + vm_address_t addr; + } data = { .ptr = NULL }; char data_buf[2048]; mach_msg_type_number_t len; mach_msg_type_number_t amount; @@ -51,15 +55,15 @@ __libc_sendmsg (int fd, const struct msghdr *message, int flags) /* As an optimization, if we only have a single non-empty iovec, we set DATA and LEN from it. */ if (len == 0) - data = message->msg_iov[i].iov_base; + data.ptr = message->msg_iov[i].iov_base; else - data = NULL; + data.ptr = NULL; len += message->msg_iov[i].iov_len; } } - if (data == NULL) + if (data.ptr == NULL) { size_t to_copy; char *buf; @@ -70,8 +74,7 @@ __libc_sendmsg (int fd, const struct msghdr *message, int flags) limit of 2048 bytes is inspired by the MiG stubs. */ if (len > 2048) { - err = __vm_allocate (__mach_task_self (), - (vm_address_t *) &data, len, 1); + err = __vm_allocate (__mach_task_self (), &data.addr, len, 1); if (err) { __set_errno (err); @@ -80,11 +83,11 @@ __libc_sendmsg (int fd, const struct msghdr *message, int flags) dealloc = 1; } else - data = data_buf; + data.ptr = data_buf; /* Copy the data into DATA. */ to_copy = len; - buf = data; + buf = data.ptr; for (i = 0; i < len; i++) { #define min(a, b) ((a) > (b) ? (b) : (a)) @@ -131,7 +134,7 @@ __libc_sendmsg (int fd, const struct msghdr *message, int flags) { /* Send the data. */ err = __socket_send (port, aport, - flags, data, len, + flags, data.ptr, len, NULL, MACH_MSG_TYPE_COPY_SEND, 0, message->msg_control, @@ -144,7 +147,7 @@ __libc_sendmsg (int fd, const struct msghdr *message, int flags) })); if (dealloc) - __vm_deallocate (__mach_task_self (), (vm_address_t) data, len); + __vm_deallocate (__mach_task_self (), data.addr, len); return err ? __hurd_dfail (fd, err) : amount; } |