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authorEdward Thomson <ethomson@edwardthomson.com>2022-04-10 09:44:41 -0400
committerGitHub <noreply@github.com>2022-04-10 09:44:41 -0400
commit606afeda5a0ff4d7ccb1476428682e078364c24d (patch)
treef0ef597e2e292b69863796fc74dfac6384e883a0
parent2fc0fcb5d6827c4107c571a7a076d029f7d3c442 (diff)
parent71bb92b565c2e55265c65c02be38909e829cef65 (diff)
downloadlibgit2-606afeda5a0ff4d7ccb1476428682e078364c24d.tar.gz
Merge pull request #6244 from jorio/fix-diff_delta_format_path-crash
Fix crash when regenerating a patch with unquoted spaces in filename
-rw-r--r--src/libgit2/diff_print.c5
-rw-r--r--tests/libgit2/diff/parse.c26
-rw-r--r--tests/libgit2/patch/patch_common.h9
3 files changed, 40 insertions, 0 deletions
diff --git a/src/libgit2/diff_print.c b/src/libgit2/diff_print.c
index 03d25b087..6c5a2cdc8 100644
--- a/src/libgit2/diff_print.c
+++ b/src/libgit2/diff_print.c
@@ -316,6 +316,11 @@ static int diff_print_oid_range(
static int diff_delta_format_path(
git_str *out, const char *prefix, const char *filename)
{
+ if (!filename) {
+ /* don't prefix "/dev/null" */
+ return git_str_puts(out, "/dev/null");
+ }
+
if (git_str_joinpath(out, prefix, filename) < 0)
return -1;
diff --git a/tests/libgit2/diff/parse.c b/tests/libgit2/diff/parse.c
index d3a0c8de6..9c3f798e4 100644
--- a/tests/libgit2/diff/parse.c
+++ b/tests/libgit2/diff/parse.c
@@ -431,6 +431,32 @@ void test_diff_parse__new_file_with_space(void)
git_diff_free(diff);
}
+void test_diff_parse__new_file_with_space_and_regenerate_patch(void)
+{
+ const char *content = PATCH_ORIGINAL_NEW_FILE_WITH_SPACE;
+ git_diff *diff = NULL;
+ git_buf buf = GIT_BUF_INIT;
+
+ cl_git_pass(git_diff_from_buffer(&diff, content, strlen(content)));
+ cl_git_pass(git_diff_to_buf(&buf, diff, GIT_DIFF_FORMAT_PATCH));
+
+ git_buf_dispose(&buf);
+ git_diff_free(diff);
+}
+
+void test_diff_parse__delete_file_with_space_and_regenerate_patch(void)
+{
+ const char *content = PATCH_DELETE_FILE_WITH_SPACE;
+ git_diff *diff = NULL;
+ git_buf buf = GIT_BUF_INIT;
+
+ cl_git_pass(git_diff_from_buffer(&diff, content, strlen(content)));
+ cl_git_pass(git_diff_to_buf(&buf, diff, GIT_DIFF_FORMAT_PATCH));
+
+ git_buf_dispose(&buf);
+ git_diff_free(diff);
+}
+
void test_diff_parse__crlf(void)
{
const char *text = PATCH_CRLF;
diff --git a/tests/libgit2/patch/patch_common.h b/tests/libgit2/patch/patch_common.h
index 1e03889fc..7e2cb6a58 100644
--- a/tests/libgit2/patch/patch_common.h
+++ b/tests/libgit2/patch/patch_common.h
@@ -933,6 +933,15 @@
"@@ -0,0 +1 @@\n" \
"+a\n"
+#define PATCH_DELETE_FILE_WITH_SPACE \
+ "diff --git a/sp ace.txt b/sp ace.txt\n" \
+ "deleted file mode 100644\n" \
+ "index 789819226..000000000\n" \
+ "--- a/sp ace.txt\n" \
+ "+++ /dev/null\n" \
+ "@@ -1 +0,0 @@\n" \
+ "-a\n"
+
#define PATCH_CRLF \
"diff --git a/test-file b/test-file\r\n" \
"new file mode 100644\r\n" \