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#include <sys/statvfs.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char ** argv) {
struct statvfs stat;
if (argc != 2) {
fprintf(stderr, "Usage: %s PATH", argv[0]);
exit(2);
}
if (statvfs(argv[1], &stat) != 0) {
perror("statvfs");
exit(3);
}
if (stat.f_flag & ST_RDONLY)
exit(0);
else
exit(1);
}
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