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37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
From d73aaa4b4a7f639ffc59bd6324b2f95319044201 Mon Sep 17 00:00:00 2001
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From: Samuel Dionne-Riel <samuel@dionne-riel.com>
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Date: Thu, 27 Feb 2020 17:45:24 -0500
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Subject: [PATCH] Skip realpath on absolute paths
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Opening the file with stray `.` and `..` on an absolute path is not
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an issue. This only serves to satiate the compulsiveness of some
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developers.
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This allows mruby-require to work during early boot in systems that
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do not have /proc mounted yet, and are using musl libc. The musl libc
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requires /proc to be mounted for realpath to wor.
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---
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src/mrb_require.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/src/mrb_require.c b/src/mrb_require.c
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index 41bf951..17b1e1b 100644
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--- a/src/mrb_require.c
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+++ b/src/mrb_require.c
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@@ -171,6 +171,12 @@ find_file_check(mrb_state *mrb, mrb_value path, mrb_value fname, mrb_value ext)
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}
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debug("filepath: %s\n", RSTRING_PTR(filepath));
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+ // We don't need to deal with `realpath` as we have an absolute path.
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+ // Sure, we may have . and .. in the path, but that's not relevant to our use case.
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+ if (RSTRING_PTR(fname)[0] == '/') {
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+ return filepath;
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+ }
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+
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if (realpath(RSTRING_CSTR(mrb, filepath), fpath) == NULL) {
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return mrb_nil_value();
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}
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--
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2.23.1
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