21 lines
773 B
Diff
21 lines
773 B
Diff
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--- mkdosfs/mkdosfs.c
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+++ mkdosfs/mkdosfs.c
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@@ -1673,7 +1673,7 @@
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if (!create) {
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check_mount (device_name); /* Is the device already mounted? */
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- dev = open (device_name, O_RDWR); /* Is it a suitable device to build the FS on? */
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+ dev = open (device_name, O_EXCL|O_RDWR); /* Is it a suitable device to build the FS on? */
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if (dev < 0)
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die ("unable to open %s");
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}
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@@ -1681,7 +1681,7 @@
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off_t offset = blocks*BLOCK_SIZE - 1;
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char null = 0;
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/* create the file */
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- dev = open( device_name, O_RDWR|O_CREAT|O_TRUNC, 0666 );
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+ dev = open( device_name, O_EXCL|O_RDWR|O_CREAT|O_TRUNC, 0666 );
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if (dev < 0)
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die("unable to create %s");
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/* seek to the intended end-1, and write one byte. this creates a
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