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git_buf_quote/unquote: handle > \177

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Parse values up to and including `\377` (`0xff`) when unquoting.
Print octal values as an unsigned char when quoting, lest `printf`
think we're talking about negatives.
This commit is contained in:
Edward Thomson 2015-09-25 10:48:19 -04:00 committed by Edward Thomson
parent 0267c34c0c
commit 8cb27223b8
2 changed files with 7 additions and 2 deletions
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4
src/buffer.c
View File

@ -901,7 +901,7 @@ int git_buf_quote(git_buf *buf)
/* escape anything unprintable as octal */
else if (buf->ptr[i] != ' ' &&
(buf->ptr[i] < '!' || buf->ptr[i] > '~')) {
git_buf_printf(&quoted, "\\%03o", buf->ptr[i]);
git_buf_printf(&quoted, "\\%03o", (unsigned char)buf->ptr[i]);
}
/* yay, printable! */
@ -959,7 +959,7 @@ int git_buf_unquote(git_buf *buf)
case 'v': ch = '\v'; break;
/* \xyz digits convert to the char*/
case '0': case '1': case '2':
case '0': case '1': case '2': case '3':
if (j == buf->size-3) {
giterr_set(GITERR_INVALID,
"Truncated quoted character \\%c", ch);

5
tests/buf/quote.c
View File

@ -25,6 +25,7 @@ void test_buf_quote__quote_succeeds(void)
expect_quote_pass("\"foo\\r\\nbar\"", "foo\r\nbar");
expect_quote_pass("\"foo\\177bar\"", "foo\177bar");
expect_quote_pass("\"foo\\001bar\"", "foo\001bar");
expect_quote_pass("\"foo\\377bar\"", "foo\377bar");
}
static void expect_unquote_pass(const char *expected, const char *quoted)
@ -64,6 +65,7 @@ void test_buf_quote__unquote_succeeds(void)
expect_unquote_pass("foo\r\nbar", "\"foo\\015\\012bar\"");
expect_unquote_pass("foo\r\nbar", "\"\\146\\157\\157\\015\\012\\142\\141\\162\"");
expect_unquote_pass("newline: \n", "\"newline: \\012\"");
expect_unquote_pass("0xff: \377", "\"0xff: \\377\"");
}
void test_buf_quote__unquote_fails(void)
@ -76,6 +78,9 @@ void test_buf_quote__unquote_fails(void)
expect_unquote_fail("\"invalid escape char \\p\"");
expect_unquote_fail("\"invalid \\1 escape char \"");
expect_unquote_fail("\"invalid \\14 escape char \"");
expect_unquote_fail("\"invalid \\280 escape char\"");
expect_unquote_fail("\"invalid \\378 escape char\"");
expect_unquote_fail("\"invalid \\380 escape char\"");
expect_unquote_fail("\"invalid \\411 escape char\"");
expect_unquote_fail("\"truncated escape char \\\"");
expect_unquote_fail("\"truncated escape char \\0\"");