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📄 Makefile.am(3.27 KB)
📄 Makefile.in(105.83 KB)
📄 README(272 B)
📄 a_md5encrypt.c(6.76 KB)
📄 adjtime.c(10.29 KB)
📄 adjtimex.c(334 B)
📄 atoint.c(801 B)
📄 atolfp.c(1.88 KB)
📄 atouint.c(885 B)
📄 audio.c(13.09 KB)
📄 authkeys.c(19.92 KB)
📄 authreadkeys.c(9.06 KB)
📄 authusekey.c(748 B)
📄 bsd_strerror.c(1.35 KB)
📄 buftvtots.c(643 B)
📄 caljulian.c(891 B)
📄 caltontp.c(2.25 KB)
📄 calyearstart.c(2.1 KB)
📄 clocktime.c(4.49 KB)
📄 clocktypes.c(3.69 KB)
📄 decodenetnum.c(3.93 KB)
📄 dofptoa.c(2.19 KB)
📄 dolfptoa.c(3.14 KB)
📄 emalloc.c(3.4 KB)
📄 findconfig.c(1.46 KB)
📄 getopt.c(2.21 KB)
📄 hextoint.c(673 B)
📄 hextolfp.c(1.35 KB)
📄 humandate.c(1.1 KB)
📄 icom.c(4.22 KB)
📄 iosignal.c(12.27 KB)
📄 is_ip_address.c(2.02 KB)
📄 lib_strbuf.c(633 B)
📄 libssl_compat.c(6.13 KB)
📄 machines.c(13.05 KB)
📄 mktime.c(8.29 KB)
📄 modetoa.c(507 B)
📄 mstolfp.c(2.01 KB)
📄 msyslog.c(12.67 KB)
📄 netof.c(1.17 KB)
📄 ntp_calendar.c(58.49 KB)
📄 ntp_calgps.c(15.73 KB)
📄 ntp_crypto_rnd.c(2.11 KB)
📄 ntp_intres.c(28.64 KB)
📄 ntp_libopts.c(1.27 KB)
📄 ntp_lineedit.c(3.88 KB)
📄 ntp_random.c(17.63 KB)
📄 ntp_rfc2553.c(14.85 KB)
📄 ntp_worker.c(7.21 KB)
📄 numtoa.c(963 B)
📄 numtohost.c(908 B)
📄 octtoint.c(578 B)
📄 prettydate.c(5.53 KB)
📄 recvbuff.c(7.3 KB)
📄 refidsmear.c(1.05 KB)
📄 refnumtoa.c(673 B)
📄 snprintf.c(52.56 KB)
📄 socket.c(4.88 KB)
📄 socktoa.c(2.88 KB)
📄 socktohost.c(2.54 KB)
📄 ssl_init.c(5.09 KB)
📄 statestr.c(11.4 KB)
📄 strdup.c(854 B)
📄 strl_obsd.c(3.65 KB)
📄 syssignal.c(2.69 KB)
📄 systime.c(17.51 KB)
📄 systime_s.c(33 B)
📄 timespecops.c(4.27 KB)
📄 timetoa.c(2.75 KB)
📄 timevalops.c(12.97 KB)
📄 timexsup.c(1.17 KB)
📄 uglydate.c(958 B)
📄 vint64ops.c(5.1 KB)
📄 work_fork.c(12.73 KB)
📄 work_thread.c(22.88 KB)
📄 xsbprintf.c(2.06 KB)
📄 ymd2yd.c(582 B)

Editing: xsbprintf.c

/*
 * xsbprintf.c - string buffer formatting helpers
 *
 * Written by Juergen Perlinger (perlinger@ntp.org) for the NTP project.
 * The contents of 'html/copyright.html' apply.
 */

#include <config.h>
#include <sys/types.h>

#include "ntp_stdlib.h"

/* eXtended Varlist String Buffer printf
 *
 * Formats via 'vsnprintf' into a string buffer, with some semantic
 * specialties:
 *
 * - The start of the buffer pointer is updated according to the number
 *   of characters written.
 * - If the buffer is insufficient to format the number of charactes,
 *   the partial result will be be discarded, and zero is returned to
 *   indicate nothing was written to the buffer.
 * - On successful formatting, the return code is the return value of
 *   the inner call to 'vsnprintf()'.
 * - If there is any error, the state of the buffer will not be
 *   changed. (Bytes in the buffer might be smashed, but the buffer
 *   position does not change, and the NUL marker stays in place at the
 *   current buffer position.)
 * - If '(*ppbuf - pend) <= 0' (or ppbuf is NULL), fail with EINVAL.
 */
int
xvsbprintf(
	char       **ppbuf,	/* pointer to buffer pointer (I/O) */
	char * const pend,	/* buffer end (I)		   */
	char const  *pfmt,	/* printf-like format string       */
	va_list      va		/* formatting args for above       */
	)
{
	char *pbuf = (ppbuf) ? *ppbuf : NULL;
	int   rc   = -1;
	if (pbuf && (pend - pbuf > 0)) {
		size_t blen = (size_t)(pend - pbuf);
		rc = vsnprintf(pbuf, blen, pfmt, va);
		if (rc > 0) {
		    if ((size_t)rc >= blen)
			rc = 0;
		    pbuf += rc;
		}
		*pbuf = '\0'; /* fear of bad vsnprintf */
		*ppbuf = pbuf;
	} else {
		errno = EINVAL;
	}
	return rc;
}

/* variadic wrapper around the buffer string formatter */
int
xsbprintf(
	char       **ppbuf,	/* pointer to buffer pointer (I/O) */
	char * const pend,	/* buffer end (I)		   */
	char const  *pfmt,	/* printf-like format string       */
	...			/* formatting args for above       */
	)
{
	va_list va;
	int     rc;
	
	va_start(va, pfmt);
	rc = xvsbprintf(ppbuf, pend, pfmt, va);
	va_end(va);
	return rc;
}

/* that's all folks! */

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Editing: xsbprintf.c

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