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+.TH LIBABORT_STRALEN 3 LIBABORT
+.SH NAME
+libabort_stralen \- Get string length within a bounded size
+
+.SH SYNOPSIS
+.nf
+#include <libabort.h>
+
+size_t \fBlibabort_stralen\fP(const char *\fIstr\fP, size_t \fIsize\fP);
+
+#if !defined(LIBABORT_NO_SHORTHANDS) && !defined(stralen)
+# define \fBstralen\fP libabort_stralen
+#endif
+.fi
+
+.SH DESCRIPTION
+The
+.BR libabort_stralen ()
+function returns the length of the NUL terminated string
+.I str
+but will not read more than
+.I size
+bytes.
+.PP
+If no NUL terminator is found within the first
+.I size
+bytes, or if
+.I size
+is zero, the
+.BR libabort_stralen ()
+function calls
+.BR abort (3).
+
+.SH RETURN VALUE
+The
+.BR libabort_stralen ()
+function returns the length of
+.IR str .
+
+.SH ERRORS
+The
+.BR libabort_stralen ()
+function cannot fail.
+
+.SH HISTORY
+The
+.BR libabort_stralen ()
+function added in version 1.0 of
+.BR libabort .
+
+.SH SEE ALSO
+.BR libabort (7),
+.BR libabort_stpacat (3)