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/*
** Copyright 1998 - 2011 Double Precision, Inc. See COPYING for
** distribution information.
*/
#if HAVE_CONFIG_H
#include "rfc2045_config.h"
#endif
#include "rfc2045.h"
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "numlib/numlib.h"
#if HAS_GETHOSTNAME
#else
extern int gethostname(char *, size_t);
#endif
extern void rfc2045_enomem();
char *rfc2045_mk_boundary(struct rfc2045 *s, struct rfc2045src *src)
{
char hostnamebuf[256];
pid_t mypid;
char pidbuf[NUMBUFSIZE];
time_t mytime;
char timebuf[NUMBUFSIZE];
static size_t cnt=0;
char cntbuf[NUMBUFSIZE];
char *p;
int rc;
hostnamebuf[sizeof(hostnamebuf)-1]=0;
if (gethostname(hostnamebuf, sizeof(hostnamebuf)-1))
hostnamebuf[0]=0;
mypid=getpid();
time(&mytime);
libmail_str_pid_t(mypid, pidbuf);
libmail_str_time_t(mytime, timebuf);
for (;;)
{
char tempbuf[NUMBUFSIZE];
libmail_str_size_t(++cnt, tempbuf);
sprintf(cntbuf, "%4s", tempbuf);
for (p=cntbuf; *p == ' '; *p++ = '0')
;
p=malloc(strlen(hostnamebuf)+strlen(pidbuf)
+strlen(timebuf)+strlen(cntbuf)+11);
if (!p)
{
rfc2045_enomem();
return (NULL);
}
sprintf(p, "=_%-1.30s-%s-%s-%s", hostnamebuf,
pidbuf, timebuf, cntbuf);
if ((rc=rfc2045_try_boundary(s, src, p)) == 0)
break;
free(p);
if (rc < 0)
return (NULL);
}
return (p);
}
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