stand/libsa/splitfs.c

44 static int	split_openfile(struct split_file *sf);
63 split_file_destroy(struct split_file *sf)
67     if (sf->filesc > 0) {
68 	for (i = 0; i < sf->filesc; i++) {
69 	    free(sf->filesv[i]);
70 	    free(sf->descsv[i]);
72 	free(sf->filesv);
73 	free(sf->descsv);
75     free(sf);
79 split_openfile(struct split_file *sf)
84 	sf->curfd = open(sf->filesv[sf->curfile], O_RDONLY);
85 	if (sf->curfd >= 0)
87 	if ((sf->curfd == -1) && (errno != ENOENT))
92 	    sf->descsv[sf->curfile]);
96     sf->file_pos = 0;
105     struct split_file *sf;
138     sf = malloc(sizeof(struct split_file));
139     bzero(sf, sizeof(struct split_file));
153 	sf->filesc++;
154 	sf->filesv = realloc(sf->filesv, sizeof(*(sf->filesv)) * sf->filesc);
155 	sf->descsv = realloc(sf->descsv, sizeof(*(sf->descsv)) * sf->filesc);
156 	sf->filesv[sf->filesc - 1] = strdup(buf);
157 	sf->descsv[sf->filesc - 1] = strdup(cp);
162     if (sf->filesc == 0) {
163 	split_file_destroy(sf);
166     errno = split_openfile(sf);
168 	split_file_destroy(sf);
173     f->f_fsdata = sf;
181     struct split_file *sf;
183     sf = (struct split_file *)f->f_fsdata;
184     fd = sf->curfd;
185     split_file_destroy(sf);
194     struct split_file *sf;
196     sf = (struct split_file *)f->f_fsdata;
199 	nread = read(sf->curfd, buf, size - totread);
205 	sf->tot_pos += nread;
206 	sf->file_pos += nread;
211 	    if (sf->curfile == (sf->filesc - 1))	/* Last slice */
215 	    if (close(sf->curfd) != 0)
218 	    sf->curfile++;
219 	    errno = split_openfile(sf);
237     struct split_file *sf;
239     sf = (struct split_file *)f->f_fsdata;
244 	seek_by -= sf->tot_pos;
286 	if (sf->file_pos + seek_by < 0)
288 	new_pos = lseek(sf->curfd, seek_by, SEEK_CUR);
293 	sf->tot_pos += new_pos - sf->file_pos;
294 	sf->file_pos = new_pos;
297     return (sf->tot_pos);
304     struct split_file *sf = (struct split_file *)f->f_fsdata;
307     if ((result = fstat(sf->curfd, sb)) == 0)