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/* posix */
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <errno.h>
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/* socket extensions */
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#include <sys/uio.h>
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#include <sys/socket.h>
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#include "priv.h"
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/* we can't avoid overrunning npath because we don't know how big it is. */
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void
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_sock_srvname(char *npath, char *path)
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{
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	char *p;
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	strcpy(npath, "/srv/UD.");
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	p = strrchr(path, '/');
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	if(p == 0)
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		p = path;
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	else
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		p++;
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	strcat(npath, p);
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}
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int
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_sock_srv(char *path, int fd)
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{
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	int sfd;
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	char msg[8+256+1];
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	/* change the path to something in srv */
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	_sock_srvname(msg, path);
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	/* remove any previous instance */
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	unlink(msg);
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	/* put the fd in /srv and then close it */
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	sfd = creat(msg, 0666);
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	if(sfd < 0){
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		close(fd);
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		_syserrno();
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		return -1;
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	}
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	snprintf(msg, sizeof msg, "%d", fd);
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	if(write(sfd, msg, strlen(msg)) < 0){
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		_syserrno();
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		close(sfd);
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		close(fd);
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		return -1;
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	}
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	close(sfd);
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	close(fd);
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	return 0;
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}