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50 lines
1023 B
Raku
50 lines
1023 B
Raku
/* 8.t
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- Ditto for the above three tests at the offset maximum (largest
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possible ext2/3 file size.) (8.t)
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*/
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#include <sys/vfs.h>
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#define EXT2_OLD_SUPER_MAGIC 0xEF51
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#define EXT2_SUPER_MAGIC 0xEF53
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long long get_fs_limit(int fd)
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{
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struct statfs s;
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int res;
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long long lim = 0;
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res = fstatfs(fd, &s); assert(res == 0);
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switch(s.f_type) {
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case EXT2_OLD_SUPER_MAGIC:
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case EXT2_SUPER_MAGIC:
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#if 0
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{
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long long tmp;
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tmp = s.f_bsize / 4;
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/* 12 direct + indirect block + dind + tind */
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lim = 12 + tmp + tmp * tmp + tmp * tmp * tmp;
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lim *= s.f_bsize;
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printf("limit(%ld) = %Ld\n", (long)s.f_bsize, lim);
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}
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#endif
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switch(s.f_bsize) {
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case 4096: lim = 2199023251456; break;
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default:
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printf("unknown ext2 blocksize %ld\n", (long)s.f_bsize);
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exit(3);
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}
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break;
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default:
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printf("unknown filesystem 0x%08lx\n", (long)s.f_type);
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exit(3);
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}
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return lim;
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}
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#define SET_RLIMIT(x) do ; while (0)
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#define LIMIT get_fs_limit(rwfd)
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#define FILENAME "testdir.ext2/rwfile"
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#include "common-7-8.h"
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