summaryrefslogtreecommitdiffstats
path: root/vendor/sha-1-0.8.2/examples/sha1sum.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/sha-1-0.8.2/examples/sha1sum.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--vendor/sha-1-0.8.2/examples/sha1sum.rs49
1 files changed, 49 insertions, 0 deletions
diff --git a/vendor/sha-1-0.8.2/examples/sha1sum.rs b/vendor/sha-1-0.8.2/examples/sha1sum.rs
new file mode 100644
index 000000000..bde1ab4f6
--- /dev/null
+++ b/vendor/sha-1-0.8.2/examples/sha1sum.rs
@@ -0,0 +1,49 @@
+extern crate sha1;
+
+use sha1::{Sha1, Digest};
+use std::env;
+use std::fs;
+use std::io::{self, Read};
+
+const BUFFER_SIZE: usize = 1024;
+
+/// Print digest result as hex string and name pair
+fn print_result(sum: &[u8], name: &str) {
+ for byte in sum {
+ print!("{:02x}", byte);
+ }
+ println!("\t{}", name);
+}
+
+/// Compute digest value for given `Reader` and print it
+/// On any error simply return without doing anything
+fn process<D: Digest + Default, R: Read>(reader: &mut R, name: &str) {
+ let mut sh = D::default();
+ let mut buffer = [0u8; BUFFER_SIZE];
+ loop {
+ let n = match reader.read(&mut buffer) {
+ Ok(n) => n,
+ Err(_) => return,
+ };
+ sh.input(&buffer[..n]);
+ if n == 0 || n < BUFFER_SIZE {
+ break;
+ }
+ }
+ print_result(&sh.result(), name);
+}
+
+fn main() {
+ let args = env::args();
+ // Process files listed in command line arguments one by one
+ // If no files provided process input from stdin
+ if args.len() > 1 {
+ for path in args.skip(1) {
+ if let Ok(mut file) = fs::File::open(&path) {
+ process::<Sha1, _>(&mut file, &path);
+ }
+ }
+ } else {
+ process::<Sha1, _>(&mut io::stdin(), "-");
+ }
+}