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Make sure to not delete files that already exist and we've refused to overwrite!

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This commit is contained in:
Con Kolivas 2011-02-23 15:01:43 +11:00
parent 9fef6ab803
commit 48e7e31dad
1 changed files with 10 additions and 2 deletions
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12
main.c
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@ -324,8 +324,12 @@ static void decompress_file(void)
fd_out = open(control.outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
else
fd_out = open(control.outfile, O_WRONLY | O_CREAT | O_EXCL, 0666);
if (unlikely(fd_out == -1))
if (unlikely(fd_out == -1)) {
/* We must ensure we don't delete a file that already
* exists just because we tried to create a new one */
control.flags |= FLAG_KEEP_BROKEN;
fatal("Failed to create %s: %s\n", control.outfile, strerror(errno));
}
preserve_perms(fd_in, fd_out);
} else
@ -644,8 +648,12 @@ static void compress_file(void)
fd_out = open(control.outfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
else
fd_out = open(control.outfile, O_WRONLY | O_CREAT | O_EXCL, 0666);
if (unlikely(fd_out == -1))
if (unlikely(fd_out == -1)) {
/* We must ensure we don't delete a file that already
* exists just because we tried to create a new one */
control.flags |= FLAG_KEEP_BROKEN;
fatal("Failed to create %s: %s\n", control.outfile, strerror(errno));
}
} else
fd_out = open_tmpoutfile();
control.fd_out = fd_out;