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tools: Avoid leaving extra data at the end of copied files

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The copyfile() implementation has strange behaviour if the destination
file already exists. Update it to ensure that any existing data in the
destination file is dropped.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-11-12 12:28:05 -07:00
parent e291a5c9a2
commit 7ae46c3579
2 changed files with 3 additions and 1 deletions
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2
tools/fit_common.c
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@ -134,7 +134,7 @@ int copyfile(const char *src, const char *dst)
goto out;
}
fd_dst = open(dst, O_WRONLY | O_CREAT, 0666);
fd_dst = open(dst, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd_dst < 0) {
printf("Can't open file %s (%s)\n", dst, strerror(errno));
goto out;