ndbuf_write_raw manual page has been added;

man/Makefile.am

@@ -1,4 +1,5 @@
 man_MANS = ndbuf_new.3 ndbuf_new_palloc.3 ndbuf_new_wmops.3 ndbuf_new_frombuf.3 \
 	ndbuf_free.3 ndbuf_free_item.3 ndbuf_read_raw.3 ndbuf_read_u8.3 ndbuf_read_u16.3 \
-	ndbuf_read_u32.3 ndbuf_read_u64.3
+	ndbuf_read_u32.3 ndbuf_read_u64.3 ndbuf_write_raw.3 ndbuf_write_u8.3 ndbuf_write_u16.3 \
+	ndbuf_write_u32.3 ndbuf_write_u64.3 
 

man/ndbuf_write_raw.3

@@ -0,0 +1,77 @@
+.TH NDBUF_WRITE_RAW 3 "15 September 2018" "NDBUF" "Binary buffers lib manual"
+.SH NAME
+ndbuf_write_u8, ndbuf_write_u16, ndbuf_write_u32, ndbuf_write_u64, 
+ndbuf_write_raw - write data to the buffer of specified length and type
+.SH SYNOPSIS
+.B "#include <ndbuf/ndbuf.h>"
+.PP
+.nf
+uint32_t ndbuf_write_u8(ndbuf_t *b, uint8_t val);
+uint32_t ndbuf_write_u16(ndbuf_t *b, uint16_t val);
+uint32_t ndbuf_write_u32(ndbuf_t *b, uint32_t val);
+uint32_t ndbuf_write_u64(ndbuf_t *b, uint64_t val);
+uint32_t ndbuf_write_raw(ndbuf_t *b, void *src, uint32_t len);
+.fi
+.SH DESCRIPTION
+The ndbuf_write_ family writes data to an
+.B ndbuf_t
+instance from caller-provided storage. On success each function returns the number of bytes written; on error it returns 0.
+
+.TP
+.B ndbuf_write_u8(ndbuf_t *b, uint8_t val)
+Write one unsigned 8‑bit value to the current buffer position from
+.I val
+and advance the buffer cursor by one byte. Returned value is the number of bytes written (1) or 0 on error.
+
+.TP
+.B ndbuf_write_u16(ndbuf_t *b, uint16_t val)
+Writes one unsigned 16‑bit value, from
+.I val
+and advance the cursor by two bytes. Returns 2 on success or 0 on error.
+
+.TP
+.B ndbuf_write_u32(ndbuf_t *b, uint32_t val)
+Write one unsigned 32‑bit value, from
+.I val
+and advance the cursor by four bytes. Returns 4 on success or 0 on error.
+
+.TP
+.B ndbuf_write_u64(ndbuf_t *b, uint64_t val)
+Write one unsigned 64‑bit value, from
+.I val
+and advance the cursor by eight bytes. Returns 8 on success or 0 on error.
+
+.TP
+.B ndbuf_read_raw(ndbuf_t *b, void *dst, uint32_t len)
+Copy
+.I len
+from
+.I dst
+to the buffer and advance the cursor by
+.I len. The caller must ensure
+.I dst
+points to memory at least
+.I len
+bytes long. Returns the number of bytes copied or 0 on error.
+.SH RETURN VALUE
+On success each function returns the number of bytes read. On error they return 0; no specific
+.I errno
+value is set.
+.SH ERRORS
+Functions return 0 when the requested read would exceed the available data, when
+.I b
+is NULL, or on other internal errors. Callers must validate the return value before using output data.
+.SH RATIONALE
+None
+.SH EXAMPLES
+None
+.PP
+.SH SEE ALSO
+.BR ndbuf_read_raw(3),
+.BR ndbuf_print(3)
+.SH COPYRIGHT
+This software licensed under GNU LGPL v2.1 or later. See COPYING for further details.
+.PP
+(c) Authors of libndbuf 2017-2018 <http://vapaa.xyz>
+.SH AUTHOR
+Alexander Vdolainen (alex@vapaa.xyz)

man/ndbuf_write_u16.3

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+ndbuf_write_raw.3

man/ndbuf_write_u32.3

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+ndbuf_write_raw.3

man/ndbuf_write_u64.3

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+ndbuf_write_raw.3

man/ndbuf_write_u8.3

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+ndbuf_write_raw.3