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Sun, 28 Jan 2024 17:06:36 -0800 (PST) MIME-Version: 1.0 From: Bart Schaefer Date: Sun, 28 Jan 2024 17:06:24 -0800 Message-ID: Subject: [PATCH] Improve stdio management when redirecting descriptors To: Zsh hackers list Content-Type: multipart/mixed; boundary="000000000000e088c906100b41d4" X-Seq: 52509 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: --000000000000e088c906100b41d4 Content-Type: text/plain; charset="UTF-8" The attached patch assures that we're properly managing the internals of FILE objects when performing redirections. --000000000000e088c906100b41d4 Content-Type: text/plain; charset="US-ASCII"; name="dup-purge.txt" Content-Disposition: attachment; filename="dup-purge.txt" Content-Transfer-Encoding: base64 Content-ID: X-Attachment-Id: f_lry82l5c0 ZGlmZiAtLWdpdCBhL1NyYy91dGlscy5jIGIvU3JjL3V0aWxzLmMKaW5kZXggMWE0ZjRjMTRiLi4w ZmRhOTI3MDkgMTAwNjQ0Ci0tLSBhL1NyYy91dGlscy5jCisrKyBiL1NyYy91dGlscy5jCkBAIC0y MDA4LDYgKzIwMDgsMjggQEAgcmVkdXAoaW50IHgsIGludCB5KQogewogICAgIGludCByZXQgPSB5 OwogCisjaWZkZWYgSEFWRV9GUFVSR0UKKyAgICAvKiBNYWtlIHN1cmUgYnVmZmVycyBhcmUgY2xl YXJlZCB3aGVuIGNoYW5naW5nIGRlc2NyaXB0b3IgZm9yIGEKKyAgICAgKiBGSUxFIG9iamVjdC4g IE5vIGZmbHVzaCgpIGhlcmUgYmVjYXVzZSB0aGUgb25seSB3YXkgYW55dGhpbmcKKyAgICAgKiBj YW4gbGVnaXRpbWF0ZWx5IGJlIGxlZnQgaW4gdGhlIGJ1ZmZlciBpcyB3aGVuIGFuIGVycm9yIGhh cworICAgICAqIG9jY3VycmVkLCBzbyBhdHRlbXB0aW5nIGZsdXNoIGhlcmUgd291bGQgYXQgYmVz dCBlcnJvciBhZ2FpbgorICAgICAqIGFuZCBhdCB3b3JzdCBzcXVpcnQgb3V0IHNvbWV0aGluZyB1 bmV4cGVjdGVkLgorICAgICAqLworICAgIGlmIChzdGRvdXQgJiYgeSA9PSBmaWxlbm8oc3Rkb3V0 KSkKKwlmcHVyZ2Uoc3Rkb3V0KTsKKyAgICBpZiAoc3RkZXJyICYmIHkgPT0gZmlsZW5vKHN0ZGVy cikpCisJZnB1cmdlKHN0ZGVycik7CisgICAgaWYgKHNob3V0ICYmIHkgPT0gZmlsZW5vKHNob3V0 KSkKKwlmcHVyZ2Uoc2hvdXQpOworICAgIGlmICh4dHJlcnIgJiYgeSA9PSBmaWxlbm8oeHRyZXJy KSkKKwlmcHVyZ2UoeHRyZXJyKTsKKyNpZm5kZWYgX0lPTkJGCisgICAgLyogU2VlIGluaXQuYyBz ZXR1cHNoaW4oKSAtLSBzdGRpbiBvdGhlcndpc2UgdW5idWZmZXJlZCAqLworICAgIGlmIChzdGRp biAmJiB5ID09IGZpbGVubyhzdGRpbikpCisJZnB1cmdlKHN0ZGluKTsKKyNlbmRpZgorI2VuZGlm CisKICAgICBpZih4IDwgMCkKIAl6Y2xvc2UoeSk7CiAgICAgZWxzZSBpZiAoeCAhPSB5KSB7CmRp ZmYgLS1naXQgYS9jb25maWd1cmUuYWMgYi9jb25maWd1cmUuYWMKaW5kZXggMjg3MWRjYjdjLi4x NzVkOTA0MzMgMTAwNjQ0Ci0tLSBhL2NvbmZpZ3VyZS5hYworKysgYi9jb25maWd1cmUuYWMKQEAg LTEyOTUsNyArMTI5NSw3IEBAIEFDX0NIRUNLX0ZVTkNTKHN0cmZ0aW1lIHN0cnB0aW1lIG1rdGlt ZSB0aW1lbG9jYWwgXAogCSAgICAgICBzZWxlY3QgcG9sbCBcCiAJICAgICAgIHJlYWRsaW5rIGZh Y2Nlc3N4IGZjaGRpciBmdHJ1bmNhdGUgXAogCSAgICAgICBmc3RhdCBsc3RhdCBsY2hvd24gZmNo b3duIGZjaG1vZCBcCi0JICAgICAgIGZzZWVrbyBmdGVsbG8gXAorCSAgICAgICBmcHVyZ2UgZnNl ZWtvIGZ0ZWxsbyBcCiAJICAgICAgIG1rZmlmbyBfbWt0ZW1wIG1rc3RlbXAgXAogCSAgICAgICB3 YWl0cGlkIHdhaXQzIFwKIAkgICAgICAgc2lnYWN0aW9uIHNpZ2Jsb2NrIHNpZ2hvbGQgc2lncmVs c2Ugc2lnc2V0bWFzayBzaWdwcm9jbWFzayBcCg== --000000000000e088c906100b41d4--