mirror of
https://github.com/NixOS/nixpkgs.git
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30 lines
955 B
Diff
30 lines
955 B
Diff
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diff --git a/src/copyin.c b/src/copyin.c
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index cde911e..032d35f 100644
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--- a/src/copyin.c
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+++ b/src/copyin.c
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@@ -1385,6 +1385,8 @@ process_copy_in ()
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break;
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}
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+ if (file_hdr.c_namesize <= 1)
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+ file_hdr.c_name = xrealloc(file_hdr.c_name, 2);
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cpio_safer_name_suffix (file_hdr.c_name, false, !no_abs_paths_flag,
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false);
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diff --git a/src/util.c b/src/util.c
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index 6ff6032..2763ac1 100644
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--- a/src/util.c
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+++ b/src/util.c
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@@ -1411,7 +1411,10 @@ set_file_times (int fd,
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}
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/* Do we have to ignore absolute paths, and if so, does the filename
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- have an absolute path? */
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+ have an absolute path?
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+ Before calling this function make sure that the allocated NAME buffer has
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+ capacity at least 2 bytes to allow us to store the "." string inside. */
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+
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void
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cpio_safer_name_suffix (char *name, bool link_target, bool absolute_names,
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bool strip_leading_dots)
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