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58fe440c0f
Ignore SIGXFSZ signals so that exceeding RLIMIT_FSIZE makes the offending system call fail with EFBIG instead of terminating the process. PR-URL: https://github.com/nodejs/node/pull/27798 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
// Check that exceeding RLIMIT_FSIZE fails with EFBIG
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// rather than terminating the process with SIGXFSZ.
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'use strict';
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const common = require('../common');
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const tmpdir = require('../common/tmpdir');
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const assert = require('assert');
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const child_process = require('child_process');
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const fs = require('fs');
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const path = require('path');
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if (common.isWindows)
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common.skip('no RLIMIT_FSIZE on Windows');
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if (process.config.variables.node_shared)
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common.skip('SIGXFSZ signal handler not installed in shared library mode');
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if (process.argv[2] === 'child') {
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const filename = path.join(tmpdir.path, 'efbig.txt');
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tmpdir.refresh();
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fs.writeFileSync(filename, '.'.repeat(1 << 16)); // Exceeds RLIMIT_FSIZE.
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} else {
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const cmd = `ulimit -f 1 && '${process.execPath}' '${__filename}' child`;
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const result = child_process.spawnSync('/bin/sh', ['-c', cmd]);
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const haystack = result.stderr.toString();
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const needle = 'Error: EFBIG: file too large, write';
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const ok = haystack.includes(needle);
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if (!ok) console.error(haystack);
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assert(ok);
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assert.strictEqual(result.status, 1);
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assert.strictEqual(result.stdout.toString(), '');
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}
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