diff options
Diffstat (limited to 'src/libunixonacid/unixmessage_read.c')
-rw-r--r-- | src/libunixonacid/unixmessage_read.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/src/libunixonacid/unixmessage_read.c b/src/libunixonacid/unixmessage_read.c deleted file mode 100644 index 5a23b84..0000000 --- a/src/libunixonacid/unixmessage_read.c +++ /dev/null @@ -1,60 +0,0 @@ -/* ISC license. */ - -#define _XPG4_2 -#include <skalibs/sysdeps.h> -#include <skalibs/nonposix.h> -#include <errno.h> -#include <sys/socket.h> -#include <sys/uio.h> -#include <skalibs/buffer.h> -#include <skalibs/cbuffer.h> -#include <skalibs/djbunix.h> -#include <skalibs/error.h> -#include <skalibs/siovec.h> -#include <skalibs/unixmessage.h> - -int unixmessage_read (int fd, siovec_t const *v, unsigned int n, void *aux) -{ - int r ; - char ancilbuf[CMSG_SPACE(UNIXMESSAGE_MAXFDS * sizeof(int))] ; - struct iovec iov[n] ; - struct msghdr msghdr = - { - .msg_name = 0, - .msg_namelen = 0, - .msg_iov = iov, - .msg_iovlen = n, - .msg_flags = 0, - .msg_control = ancilbuf, - .msg_controllen = sizeof(ancilbuf) - } ; - iovec_from_siovec(iov, v, n) ; -#ifdef SKALIBS_HASCMSGCLOEXEC - r = recvmsg(fd, &msghdr, MSG_WAITALL | MSG_CMSG_CLOEXEC) ; -#else - r = recvmsg(fd, &msghdr, MSG_WAITALL) ; -#endif - if (r > 0) - { - struct cmsghdr *c = CMSG_FIRSTHDR(&msghdr) ; - if (c) - { - cbuffer_t *auxb = aux ; - unsigned int len ; - if (c->cmsg_level != SOL_SOCKET - || c->cmsg_type != SCM_RIGHTS) return (errno = EPROTO, -1-r) ; - len = (unsigned int)(c->cmsg_len - (CMSG_DATA(c) - (unsigned char *)c)) ; -#ifndef SKALIBS_HASCMSGCLOEXEC - { - register unsigned int i = 0 ; - for (; i < len/sizeof(int) ; i++) - if (coe(((int *)CMSG_DATA(c))[i]) < 0) return -1-r ; - } -#endif - if (msghdr.msg_flags | MSG_CTRUNC) return (errno = EPROTO, -1-r) ; - if (cbuffer_put(auxb, (char *)CMSG_DATA(c), len) < len) - return (errno = ENOBUFS, -1-r) ; - } - } - return r ; -} |