[PATCH v2 2/2] config: support values longer than 1023 bytes
- From
Erik Faye-Lund <kusmabite@gmail.com>
- Date
- Apr 10, 2011, 20:54 UTC
- Message-ID
- <1302468858-7376-2-git-send-email-kusmabite@gmail.com>
- In-Reply-To
- <1302468858-7376-1-git-send-email-kusmabite@gmail.com>
parse_value in config.c has a static buffer of 1024 bytes that it parse the value into. This can sometimes be a problem when a config file contains very long values.
It's particularly amusing that git-config already is able to write such files, so it should probably be able to read them as well.
Fix this by using a strbuf instead of a fixed-size buffer.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> ---
Updated as suggested by Peff.
config.c | 18 ++++++++---------- t/t1303-wacky-config.sh | 2 +- 2 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/config.c b/config.c index 0abcada..b7fc2c5 100644 --- a/config.c +++ b/config.c @@ -133,23 +133,21 @@ static int get_next_char(void) static char *parse_value(void) { - static char value[1024]; - int quote = 0, comment = 0, len = 0, space = 0; + static struct strbuf value = STRBUF_INIT; + int quote = 0, comment = 0, space = 0; + strbuf_reset(&value); for (;;) { int c = get_next_char(); - if (len >= sizeof(value) - 1) - return NULL; if (c == '\n') { if (quote) return NULL; - value[len] = 0; - return value; + return value.buf; } if (comment) continue; if (isspace(c) && !quote) { - if (len) + if (value.len) space++; continue; } @@ -160,7 +158,7 @@ static char *parse_value(void) } } for (; space; space--) - value[len++] = ' '; + strbuf_addch(&value, ' '); if (c == '\\') { c = get_next_char(); switch (c) { @@ -182,14 +180,14 @@ static char *parse_value(void) default: return NULL; } - value[len++] = c; + strbuf_addch(&value, c); continue; } if (c == '"') { quote = 1-quote; continue; } - value[len++] = c; + strbuf_addch(&value, c); } } diff --git a/t/t1303-wacky-config.sh b/t/t1303-wacky-config.sh index 080117c..46103a1 100755 --- a/t/t1303-wacky-config.sh +++ b/t/t1303-wacky-config.sh @@ -44,7 +44,7 @@ LONG_VALUE=$(printf "x%01021dx a" 7) test_expect_success 'do not crash on special long config line' ' setup && git config section.key "$LONG_VALUE" && - check section.key "fatal: bad config file line 2 in .git/config" + check section.key "$LONG_VALUE" ' test_done
-- 1.7.4.msysgit.0.916.ga2194