Secure temporary file: Difference between revisions
Content added Content deleted
(→{{header|Go}}: Expand example to a run-able program that shows the file name and removes it) |
(→{{header|Go}}: Explicitly close the temporary file; also actually use the file a little bit (grr.. damn recaptcha crap)) |
||
| Line 127: | Line 127: | ||
=={{header|Go}}== |
=={{header|Go}}== |
||
Use <code>[https://golang.org/pkg/io/ioutil/#TempFile ioutil.TempFile]</code> |
|||
<lang go>package main |
<lang go>package main |
||
| Line 141: | Line 142: | ||
log.Fatal(err) |
log.Fatal(err) |
||
} |
} |
||
defer f.Close() |
|||
| ⚫ | |||
| ⚫ | |||
// once it is no longer needed. |
|||
defer os.Remove(f.Name()) |
defer os.Remove(f.Name()) |
||
// … use the file via 'f' … |
// … use the file via 'f' … |
||
fmt. |
fmt.Fprintln(f, "Using temporary file:", f.Name()) |
||
f.Seek(0, 0) |
|||
d, err := ioutil.ReadAll(f) |
|||
if err != nil { |
|||
log.Fatal(err) |
|||
} |
|||
fmt.Printf("Wrote and read: %s\n", d) |
|||
// The defer statements above will close and remove the |
|||
// temporary file here (or on any return of this function). |
|||
}</lang> |
}</lang> |
||
{{out}} |
{{out}} |
||
<pre> |
<pre> |
||
Using temporary file: /tmp/foo054003078 |
Wrote and read: Using temporary file: /tmp/foo054003078 |
||
</pre> |
</pre> |
||