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b[un]zip2, g[un]zip: unlink destination if -f is given. Closes 3854

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This commit is contained in:
Denis Vlasenko 2008-06-25 20:54:45 +00:00
parent 6e18f9a6ea
commit a04cc47f1c
1 changed files with 6 additions and 0 deletions
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6
archival/bbunzip.c
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@ -73,6 +73,12 @@ int bbunpack(char **argv,
bb_error_msg("%s: unknown suffix - ignored", filename);
goto err;
}
/* -f: overwrite existing output files */
if (option_mask32 & OPT_FORCE) {
unlink(new_name);
}
/* O_EXCL: "real" bunzip2 doesn't overwrite files */
/* GNU gunzip does not bail out, but goes to next file */
if (open_to_or_warn(STDOUT_FILENO, new_name, O_WRONLY | O_CREAT | O_EXCL,