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* pack.c (pack_unpack): Add casts for char references for 'u'.

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Fix line ending recognition algorithm.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47999 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2014-10-17 14:28:34 +00:00
parent 50650bb338
commit 108627d911
3 changed files with 26 additions and 16 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
Fri Oct 17 22:47:11 2014 Tanaka Akira <akr@fsij.org>
* pack.c (pack_unpack): Add casts for char references for 'u'.
Fix line ending recognition algorithm.
Fri Oct 17 21:49:52 2014 Tanaka Akira <akr@fsij.org>
* pack.c (pack_unpack): Add casts for char references for 'b' and 'h'.

32
pack.c
View file

@ -1612,12 +1612,12 @@ pack_unpack(VALUE str, VALUE fmt)
char *ptr = RSTRING_PTR(buf);
long total = 0;
while (s < send && *s > ' ' && *s < 'a') {
while (s < send && (unsigned char)*s > ' ' && (unsigned char)*s < 'a') {
long a,b,c,d;
char hunk[4];
char hunk[3];
len = ((unsigned char)*s++ - ' ') & 077;
hunk[3] = '\0';
len = (*s++ - ' ') & 077;
total += len;
if (total > RSTRING_LEN(buf)) {
len -= total - RSTRING_LEN(buf);
@ -1627,20 +1627,20 @@ pack_unpack(VALUE str, VALUE fmt)
while (len > 0) {
long mlen = len > 3 ? 3 : len;
if (s < send && *s >= ' ')
a = (*s++ - ' ') & 077;
if (s < send && (unsigned char)*s >= ' ' && (unsigned char)*s < 'a')
a = ((unsigned char)*s++ - ' ') & 077;
else
a = 0;
if (s < send && *s >= ' ')
b = (*s++ - ' ') & 077;
if (s < send && (unsigned char)*s >= ' ' && (unsigned char)*s < 'a')
b = ((unsigned char)*s++ - ' ') & 077;
else
b = 0;
if (s < send && *s >= ' ')
c = (*s++ - ' ') & 077;
if (s < send && (unsigned char)*s >= ' ' && (unsigned char)*s < 'a')
c = ((unsigned char)*s++ - ' ') & 077;
else
c = 0;
if (s < send && *s >= ' ')
d = (*s++ - ' ') & 077;
if (s < send && (unsigned char)*s >= ' ' && (unsigned char)*s < 'a')
d = ((unsigned char)*s++ - ' ') & 077;
else
d = 0;
hunk[0] = (char)(a << 2 | b >> 4);
@ -1650,10 +1650,10 @@ pack_unpack(VALUE str, VALUE fmt)
ptr += mlen;
len -= mlen;
}
if (*s == '\r') s++;
if (*s == '\n') s++;
else if (s < send && (s+1 == send || s[1] == '\n'))
s += 2; /* possible checksum byte */
if (s < send && (unsigned char)*s != '\r' && *s != '\n')
s++; /* possible checksum byte */
if (s < send && *s == '\r') s++;
if (s < send && *s == '\n') s++;
}
rb_str_set_len(buf, total);

5
test/ruby/test_pack.rb
View file

@ -526,6 +526,11 @@ EXPECTED
assert_equal(["a"*46], "M86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A86%A\n!80``\n".unpack("u"))
assert_equal(["abcdefghi"], "&86)C9&5F\n#9VAI\n".unpack("u"))
assert_equal(["abcdef"], "#86)C\n#9&5F\n".unpack("u"))
assert_equal(["abcdef"], "#86)CX\n#9&5FX\n".unpack("u")) # X is a (dummy) checksum.
assert_equal(["abcdef"], "#86)C\r\n#9&5F\r\n".unpack("u"))
assert_equal(["abcdef"], "#86)CX\r\n#9&5FX\r\n".unpack("u")) # X is a (dummy) checksum.
assert_equal(["\x00"], "\"\n".unpack("u"))
assert_equal(["\x00"], "! \r \n".unpack("u"))
end