mailinfo: plug strbuf leak during continuation line handling

Whether this loop is left via EOF/break or upon finding a
non-continuation line, the storage used for the contination line
handling is left behind.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c
index 73be47c4975c961f2a438ec683e7148ccf2e9a88..a183cd49fd3eb807d1308bd97f3b75dd7736f515 100644 (file)
--- a/builtin/mailinfo.c
+++ b/builtin/mailinfo.c
@@ -409,6 +409,8 @@ static int is_rfc2822_header(const struct strbuf *line)
 
 static int read_one_header_line(struct strbuf *line, FILE *in)
 {
+       struct strbuf continuation = STRBUF_INIT;
+
        /* Get the first part of the line. */
        if (strbuf_getline(line, in, '\n'))
                return 0;
@@ -430,7 +432,6 @@ static int read_one_header_line(struct strbuf *line, FILE *in)
         */
        for (;;) {
                int peek;
-               struct strbuf continuation = STRBUF_INIT;
 
                peek = fgetc(in); ungetc(peek, in);
                if (peek != ' ' && peek != '\t')
@@ -441,6 +442,7 @@ static int read_one_header_line(struct strbuf *line, FILE *in)
                strbuf_rtrim(&continuation);
                strbuf_addbuf(line, &continuation);
        }
+       strbuf_release(&continuation);
 
        return 1;
 }