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115 lines
2.8 KiB
115 lines
2.8 KiB
/*
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* MIT License
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*
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* Copyright (c) 2020 Alessandro Mauri
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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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 <sys/types.h>
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#include <sys/stat.h>
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#include <sys/sysmacros.h>
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#include <unistd.h>
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#include <limits.h>
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#include "disk.h"
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#include "util.h"
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#define SYS_DEV_BLOCK_PATH "/sys/dev/block/"
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struct disk_list *
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disk_get_by_name (struct disk_list *head, const char *s)
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{
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for (; head; head = head->next) {
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if (!strcmp(s, head->name))
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break;
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}
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return head;
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}
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void
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disk_rm_by_name (struct disk_list **head, const char *s)
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{
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struct disk_list *prev = NULL, *tmp = NULL;
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for (tmp = *head; tmp; prev = tmp, tmp = tmp->next) {
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if (!strcmp(s, tmp->name)) {
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if (prev)
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prev->next = tmp->next;
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else
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*head = tmp->next;
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free(tmp);
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break;
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}
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}
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return;
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}
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void
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disk_list_free (struct disk_list **head)
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{
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for (struct disk_list *tmp = *head; tmp;) {
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*head = (*head)->next;
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free(tmp);
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tmp = *head;
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}
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return;
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}
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/* return true if the path is the main disk (sda, sdb, etc not sda2, sdb1) */
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int path_is_disk(const char *path)
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{
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struct stat stbuf = {0};
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char buf[PATH_MAX] = {0};
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printf("%s\n", path);
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if (stat(path, &stbuf) < 0 || !S_ISBLK(stbuf.st_mode))
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return 0;
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if (snprintf(buf, PATH_MAX, SYS_DEV_BLOCK_PATH "%d:%d",
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major(stbuf.st_rdev), minor(stbuf.st_rdev)) >= PATH_MAX)
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return -1;
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// FIXME: possible race condition here
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snprintf(buf, PATH_MAX, "%s", get_path(buf));
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strcat(buf, "/partition");
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if (file_exists(buf) > 0)
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return 1;
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else
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return 0;
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}
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/* The do-all function */
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/*int disk_add_disk (struct disk_list *head, const char *path)
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{
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struct disk_list dt = {0};
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// verify if it is a disk
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if (!path_is_disk(path))
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return 0;
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// get info (real name, etc)
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// get partitions
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// add partitions
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disk_list_add(head, &dt);
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return 1;
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}
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*/
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