Use getaddrinfo() to fill struct sockaddr_un. It now supports
SOCK_DGRAM and SOCK_SEQPACKET in addition to SOCK_STREAM.
This commit is contained in:
parent
4c60a05d25
commit
1c9fbb5a26
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=288602
@ -52,6 +52,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <errno.h>
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#include <netdb.h>
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#endif
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#include <ctype.h>
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@ -302,31 +303,39 @@ raw_cat(int rfd)
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static int
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udom_open(const char *path, int flags)
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{
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struct sockaddr_un sou;
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int fd;
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unsigned int len;
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bzero(&sou, sizeof(sou));
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struct addrinfo hints, *res, *res0;
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char rpath[PATH_MAX];
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int fd, error;
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/*
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* Construct the unix domain socket address and attempt to connect
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* Construct the unix domain socket address and attempt to connect.
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*/
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fd = socket(AF_UNIX, SOCK_STREAM, 0);
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if (fd >= 0) {
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sou.sun_family = AF_UNIX;
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if ((len = strlcpy(sou.sun_path, path,
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sizeof(sou.sun_path))) >= sizeof(sou.sun_path)) {
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close(fd);
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errno = ENAMETOOLONG;
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bzero(&hints, sizeof(hints));
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hints.ai_family = AF_LOCAL;
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if (realpath(path, rpath) == NULL)
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return (-1);
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error = getaddrinfo(rpath, NULL, &hints, &res0);
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if (error) {
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warn("%s", gai_strerror(error));
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errno = EINVAL;
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return (-1);
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}
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len = offsetof(struct sockaddr_un, sun_path[len+1]);
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if (connect(fd, (void *)&sou, len) < 0) {
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for (res = res0; res != NULL; res = res->ai_next) {
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fd = socket(res->ai_family, res->ai_socktype,
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res->ai_protocol);
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if (fd < 0) {
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freeaddrinfo(res0);
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return (-1);
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}
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error = connect(fd, res->ai_addr, res->ai_addrlen);
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if (error == 0)
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break;
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else {
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close(fd);
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fd = -1;
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}
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}
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freeaddrinfo(res0);
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/*
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* handle the open flags by shutting down appropriate directions
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