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-rw-r--r--src/cmd/zerotrunc.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/cmd/zerotrunc.c b/src/cmd/zerotrunc.c
new file mode 100644
index 00000000..ce6fafea
--- /dev/null
+++ b/src/cmd/zerotrunc.c
@@ -0,0 +1,26 @@
+/*
+ * cat standard input until you get a zero byte
+ */
+
+#include <u.h>
+#include <libc.h>
+
+void
+main(void)
+{
+ char buf[4096];
+ char *p;
+ int n;
+
+ while((n = read(0, buf, sizeof(buf))) > 0){
+ p = memchr(buf, 0, n);
+ if(p != nil)
+ n = p-buf;
+ if(n > 0)
+ write(1, buf, n);
+ if(p != nil)
+ break;
+ }
+ exits(0);
+}
+