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authorRené Scharfe <rene.scharfe@lsrfire.ath.cx>2013-04-17 18:33:35 (GMT)
committerJunio C Hamano <gitster@pobox.com>2013-04-17 21:50:36 (GMT)
commit9dbe7c3d7f4424cf0c27c2d4efabf72e58fa76b9 (patch)
tree33f0fa1c74b943e2b3c719aac584495a7d6619e8
parent9cfa5126a0bdb47bc9c6d5feb76bb0fbfd40785b (diff)
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pretty: handle broken commit headers gracefully
Centralize the parsing of the date and time zone strings in the new helper function show_ident_date() and make sure it checks the pointers provided by split_ident_line() for NULL before use. Reported-by: Ivan Lyapunov <dront78@gmail.com> Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--pretty.c45
-rwxr-xr-xt/t4212-log-corrupt.sh42
2 files changed, 66 insertions, 21 deletions
diff --git a/pretty.c b/pretty.c
index 41f04e6..acbfceb 100644
--- a/pretty.c
+++ b/pretty.c
@@ -393,6 +393,19 @@ static void add_rfc2047(struct strbuf *sb, const char *line, size_t len,
strbuf_addstr(sb, "?=");
}
+static const char *show_ident_date(const struct ident_split *ident,
+ enum date_mode mode)
+{
+ unsigned long date = 0;
+ int tz = 0;
+
+ if (ident->date_begin && ident->date_end)
+ date = strtoul(ident->date_begin, NULL, 10);
+ if (ident->tz_begin && ident->tz_end)
+ tz = strtol(ident->tz_begin, NULL, 10);
+ return show_date(date, tz, mode);
+}
+
void pp_user_info(const struct pretty_print_context *pp,
const char *what, struct strbuf *sb,
const char *line, const char *encoding)
@@ -401,12 +414,10 @@ void pp_user_info(const struct pretty_print_context *pp,
struct strbuf mail;
struct ident_split ident;
int linelen;
- char *line_end, *date;
+ char *line_end;
const char *mailbuf, *namebuf;
size_t namelen, maillen;
int max_length = 78; /* per rfc2822 */
- unsigned long time;
- int tz;
if (pp->fmt == CMIT_FMT_ONELINE)
return;
@@ -438,8 +449,6 @@ void pp_user_info(const struct pretty_print_context *pp,
strbuf_add(&name, namebuf, namelen);
namelen = name.len + mail.len + 3; /* ' ' + '<' + '>' */
- time = strtoul(ident.date_begin, &date, 10);
- tz = strtol(date, NULL, 10);
if (pp->fmt == CMIT_FMT_EMAIL) {
strbuf_addstr(sb, "From: ");
@@ -472,13 +481,16 @@ void pp_user_info(const struct pretty_print_context *pp,
switch (pp->fmt) {
case CMIT_FMT_MEDIUM:
- strbuf_addf(sb, "Date: %s\n", show_date(time, tz, pp->date_mode));
+ strbuf_addf(sb, "Date: %s\n",
+ show_ident_date(&ident, pp->date_mode));
break;
case CMIT_FMT_EMAIL:
- strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
+ strbuf_addf(sb, "Date: %s\n",
+ show_ident_date(&ident, DATE_RFC2822));
break;
case CMIT_FMT_FULLER:
- strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, pp->date_mode));
+ strbuf_addf(sb, "%sDate: %s\n", what,
+ show_ident_date(&ident, pp->date_mode));
break;
default:
/* notin' */
@@ -688,8 +700,6 @@ static size_t format_person_part(struct strbuf *sb, char part,
{
/* currently all placeholders have same length */
const int placeholder_len = 2;
- int tz;
- unsigned long date = 0;
struct ident_split s;
const char *name, *mail;
size_t maillen, namelen;
@@ -716,30 +726,23 @@ static size_t format_person_part(struct strbuf *sb, char part,
if (!s.date_begin)
goto skip;
- date = strtoul(s.date_begin, NULL, 10);
-
if (part == 't') { /* date, UNIX timestamp */
strbuf_add(sb, s.date_begin, s.date_end - s.date_begin);
return placeholder_len;
}
- /* parse tz */
- tz = strtoul(s.tz_begin + 1, NULL, 10);
- if (*s.tz_begin == '-')
- tz = -tz;
-
switch (part) {
case 'd': /* date */
- strbuf_addstr(sb, show_date(date, tz, dmode));
+ strbuf_addstr(sb, show_ident_date(&s, dmode));
return placeholder_len;
case 'D': /* date, RFC2822 style */
- strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822));
+ strbuf_addstr(sb, show_ident_date(&s, DATE_RFC2822));
return placeholder_len;
case 'r': /* date, relative */
- strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE));
+ strbuf_addstr(sb, show_ident_date(&s, DATE_RELATIVE));
return placeholder_len;
case 'i': /* date, ISO 8601 */
- strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601));
+ strbuf_addstr(sb, show_ident_date(&s, DATE_ISO8601));
return placeholder_len;
}
diff --git a/t/t4212-log-corrupt.sh b/t/t4212-log-corrupt.sh
new file mode 100755
index 0000000..ec5099b
--- /dev/null
+++ b/t/t4212-log-corrupt.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+test_description='git log with invalid commit headers'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ test_commit foo &&
+
+ git cat-file commit HEAD |
+ sed "/^author /s/>/>-<>/" >broken_email.commit &&
+ git hash-object -w -t commit broken_email.commit >broken_email.hash &&
+ git update-ref refs/heads/broken_email $(cat broken_email.hash)
+'
+
+test_expect_success 'git log with broken author email' '
+ {
+ echo commit $(cat broken_email.hash)
+ echo "Author: A U Thor <author@example.com>"
+ echo "Date: Thu Jan 1 00:00:00 1970 +0000"
+ echo
+ echo " foo"
+ } >expect.out &&
+ : >expect.err &&
+
+ git log broken_email >actual.out 2>actual.err &&
+
+ test_cmp expect.out actual.out &&
+ test_cmp expect.err actual.err
+'
+
+test_expect_success 'git log --format with broken author email' '
+ echo "A U Thor+author@example.com+" >expect.out &&
+ : >expect.err &&
+
+ git log --format="%an+%ae+%ad" broken_email >actual.out 2>actual.err &&
+
+ test_cmp expect.out actual.out &&
+ test_cmp expect.err actual.err
+'
+
+test_done