60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <mntent.h>
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#include <sys/statvfs.h>
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// 获取指定路径的磁盘使用率
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int get_disk_usage(const char *path, double *usage) {
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struct statvfs stat;
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if (statvfs(path, &stat) != 0) {
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// 处理错误
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perror("statvfs failed");
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return -1;
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}
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// 计算磁盘使用率
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unsigned long total_blocks = stat.f_blocks;
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unsigned long free_blocks = stat.f_bfree;
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unsigned long used_blocks = total_blocks - free_blocks;
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*usage = (double)used_blocks / total_blocks * 100;
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return 0;
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}
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int disk_usage() {
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FILE *mounts;
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struct mntent *ent;
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mounts = setmntent("/etc/mtab", "r");
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if (mounts == NULL) {
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perror("setmntent failed");
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return 1;
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}
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while ((ent = getmntent(mounts)) != NULL)
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{
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double usage = 0;
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if (strstr(ent->mnt_fsname, "/dev/") != NULL)
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{
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//printf("%s %s %s\n", ent->mnt_fsname, ent->mnt_dir, ent->mnt_type);
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if (get_disk_usage(ent->mnt_dir, &usage) != 0) {
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fprintf(stderr, "Failed to get disk usage for %s\n", ent->mnt_dir);
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continue;
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}
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int threshold = 1;
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if (usage > threshold) {
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printf("挂载点: %s 使用率: %.2f%% 阀值: %d%%\n", ent->mnt_dir, usage, threshold);
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}
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}
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}
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endmntent(mounts);
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return 0;
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}
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