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/* c-basic-offset: 4 */
#include <stdio.h>
#include <stdlib.h>
#include <sys/statvfs.h>
#include <errno.h>
int main(int argc, char *argv[]) {
if (argc < 2) {
fprintf(stderr, "freespace: not enough arguments, argc=%d\n", argc);
return 1;
}
struct statvfs buf;
if (statvfs(argv[1], &buf) != 0) {
fprintf(stderr, "freespace: statvfs failed: %d\n", errno);
return 2;
}
unsigned long long bytesfree = (unsigned long long) buf.f_bsize * (unsigned long long) buf.f_bfree;
if (argc >= 3) {
/* Check whether there's enough free space */
unsigned long long required = (unsigned long long) atoll(argv[2]);
if (bytesfree >= required)
return 0;
else
return 1;
} else {
/* Report free space */
printf("%llu\n", bytesfree);
return 0;
}
}
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