merging erik quanstros nupas

1 files changed, 0 insertions, 174 deletions

diff --git a/sys/src/cmd/ip/imap4d/mutf7.c b/sys/src/cmd/ip/imap4d/mutf7.c
deleted file mode 100644
index 6d84b4efc..000000000
--- a/sys/src/cmd/ip/imap4d/mutf7.c
+++ /dev/null
@@ -1,174 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <bio.h>
-#include <auth.h>
-#include "imap4d.h"
-
-/*
- * modified utf-7, as per imap4 spec
- * like utf-7, but substitues , for / in base 64,
- * does not allow escaped ascii characters.
- *
- * /lib/rfc/rfc2152 is utf-7
- * /lib/rfc/rfc1642 is obsolete utf-7
- *
- * test sequences from rfc1642
- *	'A≢Α.'		'A&ImIDkQ-.'
- *	'Hi Mom ☺!"	'Hi Mom &Jjo-!'
- *	'日本語'		'&ZeVnLIqe-'
- */
-
-static uchar mt64d[256];
-static char mt64e[64];
-
-static void
-initm64(void)
-{
-	int c, i;
-
-	memset(mt64d, 255, 256);
-	memset(mt64e, '=', 64);
-	i = 0;
-	for(c = 'A'; c <= 'Z'; c++){
-		mt64e[i] = c;
-		mt64d[c] = i++;
-	}
-	for(c = 'a'; c <= 'z'; c++){
-		mt64e[i] = c;
-		mt64d[c] = i++;
-	}
-	for(c = '0'; c <= '9'; c++){
-		mt64e[i] = c;
-		mt64d[c] = i++;
-	}
-	mt64e[i] = '+';
-	mt64d['+'] = i++;
-	mt64e[i] = ',';
-	mt64d[','] = i;
-}
-
-int
-encmutf7(char *out, int lim, char *in)
-{
-	Rune rr;
-	ulong r, b;
-	char *start = out;
-	char *e = out + lim;
-	int nb;
-
-	if(mt64e[0] == 0)
-		initm64();
-	for(;;){
-		r = *(uchar*)in;
-
-		if(r < ' ' || r >= Runeself){
-			if(r == '\0')
-				break;
-			if(out + 1 >= e)
-				return -1;
-			*out++ = '&';
-			b = 0;
-			nb = 0;
-			for(;;){
-				in += chartorune(&rr, in);
-				r = rr;
-				if(r == '\0' || r >= ' ' && r < Runeself)
-					break;
-				b = (b << 16) | r;
-				for(nb += 16; nb >= 6; nb -= 6){
-					if(out + 1 >= e)
-						return -1;
-					*out++ = mt64e[(b>>(nb-6))&0x3f];
-				}
-			}
-			for(; nb >= 6; nb -= 6){
-				if(out + 1 >= e)
-					return -1;
-				*out++ = mt64e[(b>>(nb-6))&0x3f];
-			}
-			if(nb){
-				if(out + 1 >= e)
-					return -1;
-				*out++ = mt64e[(b<<(6-nb))&0x3f];
-			}
-
-			if(out + 1 >= e)
-				return -1;
-			*out++ = '-';
-			if(r == '\0')
-				break;
-		}else
-			in++;
-		if(out + 1 >= e)
-			return -1;
-		*out = r;
-		out++;
-		if(r == '&')
-			*out++ = '-';
-	}
-
-	if(out >= e)
-		return -1;
-	*out = '\0';
-	return out - start;
-}
-
-int
-decmutf7(char *out, int lim, char *in)
-{
-	Rune rr;
-	char *start = out;
-	char *e = out + lim;
-	int c, b, nb;
-
-	if(mt64e[0] == 0)
-		initm64();
-	for(;;){
-		c = *in;
-
-		if(c < ' ' || c >= Runeself){
-			if(c == '\0')
-				break;
-			return -1;
-		}
-		if(c != '&'){
-			if(out + 1 >= e)
-				return -1;
-			*out++ = c;
-			in++;
-			continue;
-		}
-		in++;
-		if(*in == '-'){
-			if(out + 1 >= e)
-				return -1;
-			*out++ = '&';
-			in++;
-			continue;
-		}
-
-		b = 0;
-		nb = 0;
-		while((c = *in++) != '-'){
-			c = mt64d[c];
-			if(c >= 64)
-				return -1;
-			b = (b << 6) | c;
-			nb += 6;
-			if(nb >= 16){
-				rr = b >> (nb - 16);
-				nb -= 16;
-				if(out + UTFmax + 1 >= e && out + runelen(rr) + 1 >= e)
-					return -1;
-				out += runetochar(out, &rr);
-			}
-		}
-		if(b & ((1 << nb) - 1))
-			return -1;
-	}
-
-	if(out >= e)
-		return -1;
-	*out = '\0';
-	return out - start;
-}