diff options
Diffstat (limited to 'libc-top-half/musl/src/network/sendmsg.c')
-rw-r--r-- | libc-top-half/musl/src/network/sendmsg.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/network/sendmsg.c b/libc-top-half/musl/src/network/sendmsg.c new file mode 100644 index 0000000..80cc5f4 --- /dev/null +++ b/libc-top-half/musl/src/network/sendmsg.c @@ -0,0 +1,29 @@ +#include <sys/socket.h> +#include <limits.h> +#include <string.h> +#include <errno.h> +#include "syscall.h" + +ssize_t sendmsg(int fd, const struct msghdr *msg, int flags) +{ +#if LONG_MAX > INT_MAX + struct msghdr h; + struct cmsghdr chbuf[1024/sizeof(struct cmsghdr)+1], *c; + if (msg) { + h = *msg; + h.__pad1 = h.__pad2 = 0; + msg = &h; + if (h.msg_controllen) { + if (h.msg_controllen > 1024) { + errno = ENOMEM; + return -1; + } + memcpy(chbuf, h.msg_control, h.msg_controllen); + h.msg_control = chbuf; + for (c=CMSG_FIRSTHDR(&h); c; c=CMSG_NXTHDR(&h,c)) + c->__pad1 = 0; + } + } +#endif + return socketcall_cp(sendmsg, fd, msg, flags, 0, 0, 0); +} |