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-rw-r--r--src/lib/krb4/fgetst.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/src/lib/krb4/fgetst.c b/src/lib/krb4/fgetst.c
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+++ b/src/lib/krb4/fgetst.c
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+/*
+ * fgetst.c
+ *
+ * Copyright 1987, 1988 by the Massachusetts Institute of Technology.
+ *
+ * For copying and distribution information, please see the file
+ * <mit-copyright.h>.
+ */
+
+#include "mit-copyright.h"
+#include <stdio.h>
+
+/*
+ * fgetst takes a file descriptor, a character pointer, and a count.
+ * It reads from the file it has either read "count" characters, or
+ * until it reads a null byte. When finished, what has been read exists
+ * in "s". If "count" characters were actually read, the last is changed
+ * to a null, so the returned string is always null-terminated. fgetst
+ * returns the number of characters read, including the null terminator.
+ */
+
+fgetst(f, s, n)
+ FILE *f;
+ register char *s;
+ int n;
+{
+ register count = n;
+ int ch; /* NOT char; otherwise you don't see EOF */
+
+ while ((ch = getc(f)) != EOF && ch && --count) {
+ *s++ = ch;
+ }
+ *s = '\0';
+ return (n - count);
+}