1 files changed, 168 insertions, 0 deletions
diff --git a/maildrop/buffer.C b/maildrop/buffer.C
new file mode 100644
index 0000000..acb1006
--- /dev/null
+++ b/maildrop/buffer.C
@@ -0,0 +1,168 @@
+#include "config.h"
+#include	"buffer.h"
+#include	"funcs.h"
+#include	<string.h>
+#include	<stdio.h>
+#include	<ctype.h>
+#include	<math.h>
+
+
+#define	CHUNK	512
+
+void	Buffer::append(int c)
+{
+int	newsize=bufsize+CHUNK;
+unsigned char	*newbuf=new unsigned char[newsize];
+
+	if (!newbuf)	outofmem();
+	if (bufsize)	memcpy(newbuf, buf, bufsize);
+	if (buf)	delete[] buf;
+	buf=newbuf;
+	bufsize = newsize;
+	buf[buflength++]=c;
+}
+
+void	Buffer::set(const char *p)
+{
+int	l=strlen(p);
+
+	if (bufsize < l)
+	{
+	int	newsize=l + CHUNK-1;
+
+		newsize -= (newsize % CHUNK);
+	unsigned char	*newbuf=new unsigned char[newsize];
+
+		if (!newbuf)	outofmem();
+		if (buf)	delete[] buf;
+		buf=newbuf;
+		bufsize=newsize;
+	}
+	memcpy(buf, p, l);
+	buflength=l;
+}
+
+int	Buffer::operator-(const Buffer &o) const
+{
+int	i;
+
+	for (i=0; i<buflength && i < o.buflength; i++)
+	{
+		if (buf[i] < o.buf[i])	return (-1);
+		if (buf[i] > o.buf[i])	return (1);
+	}
+	return (buflength < o.buflength ? -1:
+		buflength > o.buflength ? 1:0);
+}
+
+int	Buffer::operator-(const char *o) const
+{
+int	i;
+
+	for (i=0; i<buflength && o[i]; i++)
+	{
+		if (buf[i] < o[i])	return (-1);
+		if (buf[i] > o[i])	return (1);
+	}
+	return (i < buflength ? 1: o[i] ? -1:0);
+}
+
+Buffer &Buffer::operator=(const Buffer &o)
+{
+	if (bufsize < o.buflength)
+	{
+	int	newsize=(o.buflength + CHUNK-1);
+
+		newsize -= (newsize % CHUNK);
+	unsigned char	*newbuf=new unsigned char[newsize];
+
+		if (!newbuf)	outofmem();
+		if (buf)	delete[] buf;
+		buf=newbuf;
+		bufsize=newsize;
+	}
+	if (o.buflength) memcpy(buf, o.buf, o.buflength);
+	buflength=o.buflength;
+	return (*this);
+}
+
+void	Buffer::append(const void *p, int l)
+{
+	if (bufsize - buflength < l)
+	{
+	int	newsize=(buflength+l + CHUNK-1);
+
+		newsize -= (newsize % CHUNK);
+	unsigned char	*newbuf=new unsigned char[newsize];
+
+		if (!newbuf)	outofmem();
+		if (buf)
+		{
+			memcpy(newbuf, buf, buflength);
+			delete[] buf;
+		}
+		buf=newbuf;
+		bufsize=newsize;
+	}
+	if (l) memcpy(buf+buflength, p, l);
+	buflength += l;
+}
+
+void	Buffer::append(unsigned long n)
+{
+char	tbuf[40];
+char	*p=tbuf+sizeof(tbuf)-1;
+
+	*p=0;
+	do
+	{
+		*--p= (n % 10) + '0';
+	} while ( (n /= 10) != 0);
+	append(p);
+}
+
+
+void	Buffer::append(double d)
+{
+char	tbuf[MAXLONGSIZE < 40 ? 40:MAXLONGSIZE+4];
+
+	sprintf(tbuf, "%1.*g", MAXLONGSIZE, d);
+	operator += (tbuf);
+}
+
+int	Buffer::Int(const char *def) const
+{
+const	unsigned char *p=buf;
+int	l=buflength;
+int	minus=0;
+unsigned num=0;
+
+	while (l && isspace(*p))
+	{
+		--l;
+		++p;
+	}
+
+	if ((!l || (*p != '-' && (*p < '0' || *p > '9'))) && def != 0)
+	{
+		p= (const unsigned char *)def;
+		l=strlen(def);
+	}
+
+	if (l && *p == '-')
+	{
+		minus=1;
+		--l;
+		++p;
+	}
+
+	while (l)
+	{
+		if (*p < '0' || *p > '9')	break;
+		num = num * 10 + (*p-'0');
+		++p;
+		--l;
+	}
+	if (minus)	num= -num;
+	return ( (int)num );
+}