63 lines
1.4 KiB
C
63 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 <errno.h>
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#include <sys/statfs.h>
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static int ok = EXIT_SUCCESS;
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static void df(char *s, int always) {
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struct statfs st;
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if (statfs(s, &st) < 0) {
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fprintf(stderr, "%s: %s\n", s, strerror(errno));
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ok = EXIT_FAILURE;
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} else {
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if (st.f_blocks == 0 && !always)
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return;
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printf("%s: %lldK total, %lldK used, %lldK available (block size %d)\n",
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s,
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((long long)st.f_blocks * (long long)st.f_bsize) / 1024,
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((long long)(st.f_blocks - (long long)st.f_bfree) * st.f_bsize) / 1024,
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((long long)st.f_bfree * (long long)st.f_bsize) / 1024,
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(int) st.f_bsize);
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}
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}
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int df_main(int argc, char *argv[]) {
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if (argc == 1) {
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char s[2000];
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FILE *f = fopen("/proc/mounts", "r");
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while (fgets(s, 2000, f)) {
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char *c, *e = s;
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for (c = s; *c; c++) {
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if (*c == ' ') {
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e = c + 1;
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break;
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}
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}
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for (c = e; *c; c++) {
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if (*c == ' ') {
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*c = '\0';
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break;
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}
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}
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df(e, 0);
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}
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fclose(f);
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} else {
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int i;
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for (i = 1; i < argc; i++) {
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df(argv[i], 1);
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}
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}
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exit(ok);
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}
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