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(GSToUnicode): In an utf8 sequence, check that the continuation bytes are valid continuation bytes.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@19105 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Alexander Malmberg 2004-04-14 16:23:58 +00:00
parent bb817b4f33
commit 87676ed0e3
2 changed files with 14 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2004-04-14 18:20 Alexander Malmberg <alexander@malmberg.org>
* Source/Additions/Unicode.m (GSToUnicode): In an utf8 sequence,
check the the continuation bytes are valid continuation bytes.
2004-04-13 Richard Frith-Macdonald <rfm@gnu.org>
* Tools/GNUmakefile:

11
Source/Additions/Unicode.m
View file

@ -1211,8 +1211,15 @@ GSToUnicode(unichar **dst, unsigned int *size, const unsigned char *src,
/* get the codepoint */
for (i = 1; i < sle; i++)
{
if (src[spos + i] < 0x80 || src[spos + i] >= 0xc0)
break;
u = (u << 6) | (src[spos + i] & 0x3f);
}
if (i < sle)
{
result = NO;
break;
}
u = u & ~(0xffffffff << ((5 * sle) + 1));
spos += sle;
}
@ -1270,7 +1277,7 @@ GSToUnicode(unichar **dst, unsigned int *size, const unsigned char *src,
case NSNonLossyASCIIStringEncoding:
case NSASCIIStringEncoding:
case NSISOLatin1StringEncoding:
case NSUnicodeStringEncoding:
case NSUnicodeStringEncoding:
while (spos < slen)
{
if (dpos >= bsize)
@ -1835,7 +1842,7 @@ GSFromUnicode(unsigned char **dst, unsigned int *size, const unichar *src,
goto bases;
case NSISOLatin1StringEncoding:
case NSUnicodeStringEncoding:
case NSUnicodeStringEncoding:
base = 256;
goto bases;