/home/ben/Projects/got/tog/../lib/repository.c

Bug Summary

File:	tog/../lib/repository.c
Warning:	line 1984, column 47 The left operand of '==' is a garbage value
Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd6.9 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name repository.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/local/lib/clang/11.1.0 -I /home/ben/Projects/got/tog/../include -I /home/ben/Projects/got/tog/../lib -D GOT_LIBEXECDIR=/home/ben/bin -D GOT_VERSION=0.53-current -internal-isystem /usr/local/lib/clang/11.1.0/include -internal-externc-isystem /usr/include -O0 -fdebug-compilation-dir /home/ben/Projects/got/tog/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/got/scan/2021-05-28-230913-68537-1 -x c /home/ben/Projects/got/tog/../lib/repository.c
1/*
* Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

17#include <sys/types.h>
18#include <sys/queue.h>
19#include <sys/uio.h>
20#include <sys/socket.h>
21#include <sys/stat.h>
22#include <sys/mman.h>
23#include <sys/resource.h>

25#include <ctype.h>
26#include <endian.h>
27#include <fcntl.h>
28#include <fnmatch.h>
29#include <limits.h>
30#include <dirent.h>
31#include <stdlib.h>
32#include <stdio.h>
33#include <sha1.h>
34#include <string.h>
35#include <time.h>
36#include <unistd.h>
37#include <zlib.h>
38#include <errno(*__errno()).h>
39#include <libgen.h>
40#include <stdint.h>
41#include <imsg.h>
42#include <uuid.h>

44#include "got_error.h"
45#include "got_reference.h"
46#include "got_repository.h"
47#include "got_path.h"
48#include "got_cancel.h"
49#include "got_object.h"

51#include "got_lib_delta.h"
52#include "got_lib_inflate.h"
53#include "got_lib_object.h"
54#include "got_lib_object_parse.h"
55#include "got_lib_object_create.h"
56#include "got_lib_pack.h"
57#include "got_lib_privsep.h"
58#include "got_lib_sha1.h"
59#include "got_lib_object_cache.h"
60#include "got_lib_repository.h"
61#include "got_lib_gotconfig.h"

63#ifndef nitems
64#define nitems(_a)(sizeof(_a) / sizeof((_a)[0])) (sizeof(_a) / sizeof((_a)[0]))
65#endif

67const char *
68got_repo_get_path(struct got_repository *repo)
69{
return repo->path;
71}

73const char *
74got_repo_get_path_git_dir(struct got_repository *repo)
75{
return repo->path_git_dir;
77}

79int
80got_repo_get_fd(struct got_repository *repo)
81{
return repo->gitdir_fd;
83}

85const char *
86got_repo_get_gitconfig_author_name(struct got_repository *repo)
87{
return repo->gitconfig_author_name;
89}

91const char *
92got_repo_get_gitconfig_author_email(struct got_repository *repo)
93{
return repo->gitconfig_author_email;
95}

97const char *
98got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
99{
return repo->global_gitconfig_author_name;
101}

103const char *
104got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
105{
return repo->global_gitconfig_author_email;
107}

109const char *
110got_repo_get_gitconfig_owner(struct got_repository *repo)
111{
return repo->gitconfig_owner;
113}

115int
116got_repo_is_bare(struct got_repository *repo)
117{
return (strcmp(repo->path, repo->path_git_dir) == 0);
119}

121static char *
122get_path_git_child(struct got_repository *repo, const char *basename)
123{
char *path_child;

if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
   basename) == -1)
return NULL((void *)0);

return path_child;
131}

133char *
134got_repo_get_path_objects(struct got_repository *repo)
135{
return get_path_git_child(repo, GOT_OBJECTS_DIR"objects");
137}

139char *
140got_repo_get_path_objects_pack(struct got_repository *repo)
141{
return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR"objects/pack");
143}

145char *
146got_repo_get_path_refs(struct got_repository *repo)
147{
return get_path_git_child(repo, GOT_REFS_DIR"refs");
149}

151char *
152got_repo_get_path_packed_refs(struct got_repository *repo)
153{
return get_path_git_child(repo, GOT_PACKED_REFS_FILE"packed-refs");
155}

157static char *
158get_path_head(struct got_repository *repo)
159{
return get_path_git_child(repo, GOT_HEAD_FILE"HEAD");
161}

163char *
164got_repo_get_path_gitconfig(struct got_repository *repo)
165{
return get_path_git_child(repo, GOT_GITCONFIG"config");
167}

169char *
170got_repo_get_path_gotconfig(struct got_repository *repo)
171{
return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME"got.conf");
173}

175const struct got_gotconfig *
176got_repo_get_gotconfig(struct got_repository *repo)
177{
return repo->gotconfig;
179}

181void
182got_repo_get_gitconfig_remotes(int *nremotes,
  const struct got_remote_repo **remotes, struct got_repository *repo)
184{
*nremotes = repo->ngitconfig_remotes;
*remotes = repo->gitconfig_remotes;
187}

189static int
190is_git_repo(struct got_repository *repo)
191{
const char *path_git = got_repo_get_path_git_dir(repo);
char *path_objects = got_repo_get_path_objects(repo);
char *path_refs = got_repo_get_path_refs(repo);
char *path_head = get_path_head(repo);
int ret = 0;
struct stat sb;
struct got_reference *head_ref;

if (lstat(path_git, &sb) == -1)
goto done;
if (!S_ISDIR(sb.st_mode)((sb.st_mode & 0170000) == 0040000))
goto done;

if (lstat(path_objects, &sb) == -1)
goto done;
if (!S_ISDIR(sb.st_mode)((sb.st_mode & 0170000) == 0040000))
goto done;

if (lstat(path_refs, &sb) == -1)
goto done;
if (!S_ISDIR(sb.st_mode)((sb.st_mode & 0170000) == 0040000))
goto done;

if (lstat(path_head, &sb) == -1)
goto done;
if (!S_ISREG(sb.st_mode)((sb.st_mode & 0170000) == 0100000))
goto done;

/* Check if the HEAD reference can be opened. */
if (got_ref_open(&head_ref, repo, GOT_REF_HEAD"HEAD", 0) != NULL((void *)0))
goto done;
got_ref_close(head_ref);

ret = 1;
226done:
free(path_objects);
free(path_refs);
free(path_head);
return ret;

232}

234const struct got_error *
235got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
  struct got_object *obj)
237{
238#ifndef GOT_NO_OBJ_CACHE
const struct got_error *err = NULL((void *)0);
err = got_object_cache_add(&repo->objcache, id, obj);
if (err) {
if (err->code == GOT_ERR_OBJ_EXISTS43 ||
    err->code == GOT_ERR_OBJ_TOO_LARGE78)
	err = NULL((void *)0);
return err;
}
obj->refcnt++;
248#endif
return NULL((void *)0);
250}

252struct got_object *
253got_repo_get_cached_object(struct got_repository *repo,
  struct got_object_id *id)
255{
return (struct got_object *)got_object_cache_get(&repo->objcache, id);
257}

259const struct got_error *
260got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
  struct got_tree_object *tree)
262{
263#ifndef GOT_NO_OBJ_CACHE
const struct got_error *err = NULL((void *)0);
err = got_object_cache_add(&repo->treecache, id, tree);
if (err) {
if (err->code == GOT_ERR_OBJ_EXISTS43 ||
    err->code == GOT_ERR_OBJ_TOO_LARGE78)
	err = NULL((void *)0);
return err;
}
tree->refcnt++;
273#endif
return NULL((void *)0);
275}

277struct got_tree_object *
278got_repo_get_cached_tree(struct got_repository *repo,
  struct got_object_id *id)
280{
return (struct got_tree_object *)got_object_cache_get(
   &repo->treecache, id);
283}

285const struct got_error *
286got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
  struct got_commit_object *commit)
288{
289#ifndef GOT_NO_OBJ_CACHE
const struct got_error *err = NULL((void *)0);
err = got_object_cache_add(&repo->commitcache, id, commit);
if (err) {
if (err->code == GOT_ERR_OBJ_EXISTS43 ||
    err->code == GOT_ERR_OBJ_TOO_LARGE78)
	err = NULL((void *)0);
return err;
}
commit->refcnt++;
299#endif
return NULL((void *)0);
301}

303struct got_commit_object *
304got_repo_get_cached_commit(struct got_repository *repo,
  struct got_object_id *id)
306{
return (struct got_commit_object *)got_object_cache_get(
   &repo->commitcache, id);
309}

311const struct got_error *
312got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
  struct got_tag_object *tag)
314{
315#ifndef GOT_NO_OBJ_CACHE
const struct got_error *err = NULL((void *)0);
err = got_object_cache_add(&repo->tagcache, id, tag);
if (err) {
if (err->code == GOT_ERR_OBJ_EXISTS43 ||
    err->code == GOT_ERR_OBJ_TOO_LARGE78)
	err = NULL((void *)0);
return err;
}
tag->refcnt++;
325#endif
return NULL((void *)0);
327}

329struct got_tag_object *
330got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
331{
return (struct got_tag_object *)got_object_cache_get(
   &repo->tagcache, id);
334}

336const struct got_error *
337open_repo(struct got_repository *repo, const char *path)
338{
const struct got_error *err = NULL((void *)0);

repo->gitdir_fd = -1;

/* bare git repository? */
repo->path_git_dir = strdup(path);
if (repo->path_git_dir == NULL((void *)0))
return got_error_from_errno("strdup");
if (is_git_repo(repo)) {
repo->path = strdup(repo->path_git_dir);
if (repo->path == NULL((void *)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
repo->gitdir_fd = open(repo->path_git_dir, O_DIRECTORY0x20000);
if (repo->gitdir_fd == -1) {
	err = got_error_from_errno2("open",
	    repo->path_git_dir);
	goto done;
}
return NULL((void *)0);
}

/* git repository with working tree? */
free(repo->path_git_dir);
repo->path_git_dir = NULL((void *)0);
if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR".git") == -1) {
err = got_error_from_errno("asprintf");
goto done;
}
if (is_git_repo(repo)) {
repo->path = strdup(path);
if (repo->path == NULL((void *)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
repo->gitdir_fd = open(repo->path_git_dir, O_DIRECTORY0x20000);
if (repo->gitdir_fd == -1) {
	err = got_error_from_errno2("open",
	    repo->path_git_dir);
	goto done;
}
return NULL((void *)0);
}

err = got_error(GOT_ERR_NOT_GIT_REPO2);
385done:
if (err) {
free(repo->path);
repo->path = NULL((void *)0);
free(repo->path_git_dir);
repo->path_git_dir = NULL((void *)0);
if (repo->gitdir_fd != -1)
	close(repo->gitdir_fd);
repo->gitdir_fd = -1;

}
return err;
397}

399static const struct got_error *
400parse_gitconfig_file(int *gitconfig_repository_format_version,
  char **gitconfig_author_name, char **gitconfig_author_email,
  struct got_remote_repo **remotes, int *nremotes,
  char **gitconfig_owner, char ***extensions, int *nextensions,
  const char *gitconfig_path)
405{
const struct got_error *err = NULL((void *)0), *child_err = NULL((void *)0);
int fd = -1;
int imsg_fds[2] = { -1, -1 };
pid_t pid;
struct imsgbuf *ibuf;

*gitconfig_repository_format_version = 0;
if (extensions)
*extensions = NULL((void *)0);
if (nextensions)
*nextensions = 0;
*gitconfig_author_name = NULL((void *)0);
*gitconfig_author_email = NULL((void *)0);
if (remotes)
*remotes = NULL((void *)0);
if (nremotes)
*nremotes = 0;
if (gitconfig_owner)
*gitconfig_owner = NULL((void *)0);

fd = open(gitconfig_path, O_RDONLY0x0000);
if (fd == -1) {
if (errno(*__errno()) == ENOENT2)
	return NULL((void *)0);
return got_error_from_errno2("open", gitconfig_path);
}

ibuf = calloc(1, sizeof(*ibuf));
if (ibuf == NULL((void *)0)) {
err = got_error_from_errno("calloc");
goto done;
}

if (socketpair(AF_UNIX1, SOCK_STREAM1, PF_UNSPEC0, imsg_fds) == -1) {
err = got_error_from_errno("socketpair");
goto done;
}

pid = fork();
if (pid == -1) {
err = got_error_from_errno("fork");
goto done;
} else if (pid == 0) {
got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG"/home/ben/bin" "/" "got-read-gitconfig",
    gitconfig_path);
/* not reached */
}

if (close(imsg_fds[1]) == -1) {
err = got_error_from_errno("close");
goto done;
}
imsg_fds[1] = -1;
imsg_init(ibuf, imsg_fds[0]);

err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
if (err)
goto done;
fd = -1;

err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
if (err)
goto done;

err = got_privsep_recv_gitconfig_int(
   gitconfig_repository_format_version, ibuf);
if (err)
goto done;

if (extensions && nextensions) {
err = got_privsep_send_gitconfig_repository_extensions_req(
    ibuf);
if (err)
	goto done;
err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
if (err)
	goto done;
if (*nextensions > 0) {
	int i;
	*extensions = calloc(*nextensions, sizeof(char *));
	if (*extensions == NULL((void *)0)) {
		err = got_error_from_errno("calloc");
		goto done;
	}
	for (i = 0; i < *nextensions; i++) {
		char *ext;
		err = got_privsep_recv_gitconfig_str(&ext,
		    ibuf);
		if (err)
			goto done;
		(*extensions)[i] = ext;
	}
}
}

err = got_privsep_send_gitconfig_author_name_req(ibuf);
if (err)
goto done;

err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
if (err)
goto done;

err = got_privsep_send_gitconfig_author_email_req(ibuf);
if (err)
goto done;

err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
if (err)
goto done;

if (remotes && nremotes) {
err = got_privsep_send_gitconfig_remotes_req(ibuf);
if (err)
	goto done;

err = got_privsep_recv_gitconfig_remotes(remotes,
    nremotes, ibuf);
if (err)
	goto done;
}

if (gitconfig_owner) {
err = got_privsep_send_gitconfig_owner_req(ibuf);
if (err)
	goto done;
err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
if (err)
	goto done;
}

imsg_clear(ibuf);
err = got_privsep_send_stop(imsg_fds[0]);
child_err = got_privsep_wait_for_child(pid);
if (child_err && err == NULL((void *)0))
err = child_err;
542done:
if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL((void *)0))
err = got_error_from_errno("close");
if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL((void *)0))
err = got_error_from_errno("close");
if (fd != -1 && close(fd) == -1 && err == NULL((void *)0))
err = got_error_from_errno2("close", gitconfig_path);
free(ibuf);
return err;
551}

553static const struct got_error *
554read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
555{
const struct got_error *err = NULL((void *)0);
char *repo_gitconfig_path = NULL((void *)0);

if (global_gitconfig_path) {
/* Read settings from ~/.gitconfig. */
int dummy_repo_version;
err = parse_gitconfig_file(&dummy_repo_version,
    &repo->global_gitconfig_author_name,
    &repo->global_gitconfig_author_email,
    NULL((void *)0), NULL((void *)0), NULL((void *)0), NULL((void *)0), NULL((void *)0), global_gitconfig_path);
if (err)
	return err;
}

/* Read repository's .git/config file. */
repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
if (repo_gitconfig_path == NULL((void *)0))
return got_error_from_errno("got_repo_get_path_gitconfig");

err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
   &repo->gitconfig_author_name, &repo->gitconfig_author_email,
   &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
   &repo->gitconfig_owner, &repo->extensions, &repo->nextensions,
   repo_gitconfig_path);
if (err)
goto done;
582done:
free(repo_gitconfig_path);
return err;
585}

587static const struct got_error *
588read_gotconfig(struct got_repository *repo)
589{
const struct got_error *err = NULL((void *)0);
char *gotconfig_path;

gotconfig_path = got_repo_get_path_gotconfig(repo);
if (gotconfig_path == NULL((void *)0))
return got_error_from_errno("got_repo_get_path_gotconfig");

err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
free(gotconfig_path);
return err;
600}

602/* Supported repository format extensions. */
603static const char *repo_extensions[] = {
"noop",			/* Got supports repository format version 1. */
"preciousObjects",	/* Got has no garbage collection yet. */
"worktreeConfig",	/* Got does not care about Git work trees. */
607};

609const struct got_error *
610got_repo_open(struct got_repository **repop, const char *path,
  const char *global_gitconfig_path)
612{
struct got_repository *repo = NULL((void *)0);
const struct got_error *err = NULL((void *)0);
char *repo_path = NULL((void *)0);
size_t i;
struct rlimit rl;

*repop = NULL((void *)0);

if (getrlimit(RLIMIT_NOFILE8, &rl) == -1)
return got_error_from_errno("getrlimit");

repo = calloc(1, sizeof(*repo));
if (repo == NULL((void *)0)) {
err = got_error_from_errno("calloc");
goto done;
}

for (i = 0; i < nitems(repo->privsep_children)(sizeof(repo->privsep_children) / sizeof((repo->privsep_children
)[0])); i++) {
memset(&repo->privsep_children[i], 0,
    sizeof(repo->privsep_children[0]));
repo->privsep_children[i].imsg_fd = -1;
}

err = got_object_cache_init(&repo->objcache,
   GOT_OBJECT_CACHE_TYPE_OBJ);
if (err)
goto done;
err = got_object_cache_init(&repo->treecache,
   GOT_OBJECT_CACHE_TYPE_TREE);
if (err)
goto done;
err = got_object_cache_init(&repo->commitcache,
   GOT_OBJECT_CACHE_TYPE_COMMIT);
if (err)
goto done;
err = got_object_cache_init(&repo->tagcache,
   GOT_OBJECT_CACHE_TYPE_TAG);
if (err)
goto done;

repo->pack_cache_size = GOT_PACK_CACHE_SIZE64;
if (repo->pack_cache_size > rl.rlim_cur / 8)
repo->pack_cache_size = rl.rlim_cur / 8;

repo_path = realpath(path, NULL((void *)0));
if (repo_path == NULL((void *)0)) {
err = got_error_from_errno2("realpath", path);
goto done;
}

for (;;) {
char *parent_path;

err = open_repo(repo, repo_path);
if (err == NULL((void *)0))
	break;
if (err->code != GOT_ERR_NOT_GIT_REPO2)
	goto done;
if (repo_path[0] == '/' && repo_path[1] == '\0') {
	err = got_error(GOT_ERR_NOT_GIT_REPO2);
	goto done;
}
err = got_path_dirname(&parent_path, repo_path);
if (err)
	goto done;
free(repo_path);
repo_path = parent_path;
}

err = read_gotconfig(repo);
if (err)
goto done;

err = read_gitconfig(repo, global_gitconfig_path);
if (err)
goto done;
if (repo->gitconfig_repository_format_version != 0)
err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT110);
for (i = 0; i < repo->nextensions; i++) {
char *ext = repo->extensions[i];
int j, supported = 0;
for (j = 0; j < nitems(repo_extensions)(sizeof(repo_extensions) / sizeof((repo_extensions)[0])); j++) {
	if (strcmp(ext, repo_extensions[j]) == 0) {
		supported = 1;
		break;
	}
}
if (!supported) {
	err = got_error_path(ext, GOT_ERR_GIT_REPO_EXT130);
	goto done;
}
}
705done:
if (err)
got_repo_close(repo);
else
*repop = repo;
free(repo_path);
return err;
712}

714const struct got_error *
715got_repo_close(struct got_repository *repo)
716{
const struct got_error *err = NULL((void *)0), *child_err;
size_t i;

for (i = 0; i < repo->pack_cache_size; i++) {
if (repo->packidx_cache[i] == NULL((void *)0))
	break;
got_packidx_close(repo->packidx_cache[i]);
}

for (i = 0; i < repo->pack_cache_size; i++) {
if (repo->packs[i].path_packfile == NULL((void *)0))
	break;
got_pack_close(&repo->packs[i]);
}

free(repo->path);
free(repo->path_git_dir);

got_object_cache_close(&repo->objcache);
got_object_cache_close(&repo->treecache);
got_object_cache_close(&repo->commitcache);
got_object_cache_close(&repo->tagcache);

for (i = 0; i < nitems(repo->privsep_children)(sizeof(repo->privsep_children) / sizeof((repo->privsep_children
)[0])); i++) {
if (repo->privsep_children[i].imsg_fd == -1)
	continue;
imsg_clear(repo->privsep_children[i].ibuf);
free(repo->privsep_children[i].ibuf);
err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
child_err = got_privsep_wait_for_child(
    repo->privsep_children[i].pid);
if (child_err && err == NULL((void *)0))
	err = child_err;
if (close(repo->privsep_children[i].imsg_fd) == -1 &&
    err == NULL((void *)0))
	err = got_error_from_errno("close");
}

if (repo->gotconfig)
got_gotconfig_free(repo->gotconfig);
free(repo->gitconfig_author_name);
free(repo->gitconfig_author_email);
for (i = 0; i < repo->ngitconfig_remotes; i++)
got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
free(repo->gitconfig_remotes);
for (i = 0; i < repo->nextensions; i++)
free(repo->extensions[i]);
free(repo->extensions);
free(repo);

return err;
768}

770void
771got_repo_free_remote_repo_data(struct got_remote_repo *repo)
772{
int i;

free(repo->name);
repo->name = NULL((void *)0);
free(repo->url);
repo->url = NULL((void *)0);
for (i = 0; i < repo->nbranches; i++)
free(repo->branches[i]);
free(repo->branches);
repo->branches = NULL((void *)0);
repo->nbranches = 0;
784}

786const struct got_error *
787got_repo_map_path(char **in_repo_path, struct got_repository *repo,
  const char *input_path)
789{
const struct got_error *err = NULL((void *)0);
const char *repo_abspath = NULL((void *)0);
size_t repolen, len;
char *canonpath, *path = NULL((void *)0);

*in_repo_path = NULL((void *)0);

canonpath = strdup(input_path);
if (canonpath == NULL((void *)0)) {
err = got_error_from_errno("strdup");
goto done;
}
err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
if (err)
goto done;

repo_abspath = got_repo_get_path(repo);

if (canonpath[0] == '\0') {
path = strdup(canonpath);
if (path == NULL((void *)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
} else {
path = realpath(canonpath, NULL((void *)0));
if (path == NULL((void *)0)) {
	if (errno(*__errno()) != ENOENT2) {
		err = got_error_from_errno2("realpath",
		    canonpath);
		goto done;
	}
	/*
	 * Path is not on disk.
	 * Assume it is already relative to repository root.
	 */
	path = strdup(canonpath);
	if (path == NULL((void *)0)) {
		err = got_error_from_errno("strdup");
		goto done;
	}
}

repolen = strlen(repo_abspath);
len = strlen(path);


if (strcmp(path, repo_abspath) == 0) {
	free(path);
	path = strdup("");
	if (path == NULL((void *)0)) {
		err = got_error_from_errno("strdup");
		goto done;
	}
} else if (len > repolen &&
    got_path_is_child(path, repo_abspath, repolen)) {
	/* Matched an on-disk path inside repository. */
	if (got_repo_is_bare(repo)) {
		/*
		 * Matched an on-disk path inside repository
		 * database. Treat input as repository-relative.
		 */
		 free(path);
		 path = canonpath;
		 canonpath = NULL((void *)0);
	} else {
		char *child;
		/* Strip common prefix with repository path. */
		err = got_path_skip_common_ancestor(&child,
		    repo_abspath, path);
		if (err)
			goto done;
		free(path);
		path = child;
	}
} else {
	/*
	 * Matched unrelated on-disk path.
	 * Treat input as repository-relative.
	 */
	 free(path);
	 path = canonpath;
	 canonpath = NULL((void *)0);
}
}

/* Make in-repository path absolute */
if (path[0] != '/') {
char *abspath;
if (asprintf(&abspath, "/%s", path) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
free(path);
path = abspath;
}

887done:
free(canonpath);
if (err)
free(path);
else
*in_repo_path = path;
return err;
894}

896static const struct got_error *
897cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
  const char *path_packidx)
899{
const struct got_error *err = NULL((void *)0);
size_t i;

for (i = 0; i < repo->pack_cache_size; i++) {
if (repo->packidx_cache[i] == NULL((void *)0))
	break;
if (strcmp(repo->packidx_cache[i]->path_packidx,
    path_packidx) == 0) {
	return got_error(GOT_ERR_CACHE_DUP_ENTRY116);
}
}
if (i == repo->pack_cache_size) {
err = got_packidx_close(repo->packidx_cache[i - 1]);
if (err)
	return err;
}

/*
* Insert the new pack index at the front so it will
* be searched first in the future.
*/
memmove(&repo->packidx_cache[1], &repo->packidx_cache[0],
   sizeof(repo->packidx_cache) -
   sizeof(repo->packidx_cache[0]));
repo->packidx_cache[0] = packidx;

return NULL((void *)0);
927}

929static int
930is_packidx_filename(const char *name, size_t len)
931{
if (len != GOT_PACKIDX_NAMELEN(strlen("pack-") + (20 * 2 + 1) - 1 + strlen(".idx")))
return 0;

if (strncmp(name, GOT_PACK_PREFIX"pack-", strlen(GOT_PACK_PREFIX"pack-")) != 0)
return 0;

if (strcmp(name + strlen(GOT_PACK_PREFIX"pack-") +
   SHA1_DIGEST_STRING_LENGTH(20 * 2 + 1) - 1, GOT_PACKIDX_SUFFIX".idx") != 0)
return 0;

return 1;
943}

945const struct got_error *
946got_repo_search_packidx(struct got_packidx **packidx, int *idx,
  struct got_repository *repo, struct got_object_id *id)
948{
const struct got_error *err;
DIR *packdir = NULL((void *)0);
struct dirent *dent;
char *path_packidx;
size_t i;
int packdir_fd;

/* Search pack index cache. */
for (i = 0; i < repo->pack_cache_size; i++) {
if (repo->packidx_cache[i] == NULL((void *)0))
	break;
*idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
if (*idx != -1) {
	*packidx = repo->packidx_cache[i];
	/*
	 * Move this cache entry to the front. Repeatedly
	 * searching a wrong pack index can be expensive.
	 */
	if (i > 0) {
		struct got_packidx *p;
		p = repo->packidx_cache[0];
		repo->packidx_cache[0] = *packidx;
		repo->packidx_cache[i] = p;
	}
	return NULL((void *)0);
}
}
/* No luck. Search the filesystem. */

packdir_fd = openat(got_repo_get_fd(repo),
   GOT_OBJECTS_PACK_DIR"objects/pack", O_DIRECTORY0x20000);
if (packdir_fd == -1) {
if (errno(*__errno()) == ENOENT2)
	err = got_error_no_obj(id);
else
	err = got_error_from_errno_fmt("openat: %s/%s",
	    got_repo_get_path_git_dir(repo),
	    GOT_OBJECTS_PACK_DIR"objects/pack");
goto done;
}

packdir = fdopendir(packdir_fd);
if (packdir == NULL((void *)0)) {
err = got_error_from_errno("fdopendir");
goto done;
}

while ((dent = readdir(packdir)) != NULL((void *)0)) {
int is_cached = 0;

if (!is_packidx_filename(dent->d_name, dent->d_namlen))
	continue;

if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR"objects/pack",
    dent->d_name) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}

for (i = 0; i < repo->pack_cache_size; i++) {
	if (repo->packidx_cache[i] == NULL((void *)0))
		break;
	if (strcmp(repo->packidx_cache[i]->path_packidx,
	    path_packidx) == 0) {
		is_cached = 1;
		break;
	}
}
if (is_cached) {
	free(path_packidx);
	continue; /* already searched */
}

err = got_packidx_open(packidx, got_repo_get_fd(repo),
    path_packidx, 0);
if (err) {
	free(path_packidx);
	goto done;
}

err = cache_packidx(repo, *packidx, path_packidx);
free(path_packidx);
if (err)
	goto done;

*idx = got_packidx_get_object_idx(*packidx, id);
if (*idx != -1) {
	err = NULL((void *)0); /* found the object */
	goto done;
}
}

err = got_error_no_obj(id);
1042done:
if (packdir && closedir(packdir) != 0 && err == NULL((void *)0))
err = got_error_from_errno("closedir");
return err;
1046}

1048static const struct got_error *
1049read_packfile_hdr(int fd, struct got_packidx *packidx)
1050{
const struct got_error *err = NULL((void *)0);
uint32_t totobj = be32toh(packidx->hdr.fanout_table[0xff])(__uint32_t)(__builtin_constant_p(packidx->hdr.fanout_table
[0xff]) ? (__uint32_t)(((__uint32_t)(packidx->hdr.fanout_table
[0xff]) & 0xff) << 24 | ((__uint32_t)(packidx->hdr
.fanout_table[0xff]) & 0xff00) << 8 | ((__uint32_t)
(packidx->hdr.fanout_table[0xff]) & 0xff0000) >>
| ((__uint32_t)(packidx->hdr.fanout_table[0xff]) & 0xff000000
) >> 24) : __swap32md(packidx->hdr.fanout_table[0xff
]));
struct got_packfile_hdr hdr;
ssize_t n;

n = read(fd, &hdr, sizeof(hdr));
if (n < 0)
return got_error_from_errno("read");
if (n != sizeof(hdr))
return got_error(GOT_ERR_BAD_PACKFILE16);

if (be32toh(hdr.signature)(__uint32_t)(__builtin_constant_p(hdr.signature) ? (__uint32_t
)(((__uint32_t)(hdr.signature) & 0xff) << 24 | ((__uint32_t
)(hdr.signature) & 0xff00) << 8 | ((__uint32_t)(hdr
.signature) & 0xff0000) >> 8 | ((__uint32_t)(hdr.signature
) & 0xff000000) >> 24) : __swap32md(hdr.signature)) != GOT_PACKFILE_SIGNATURE0x5041434b ||
   be32toh(hdr.version)(__uint32_t)(__builtin_constant_p(hdr.version) ? (__uint32_t)
(((__uint32_t)(hdr.version) & 0xff) << 24 | ((__uint32_t
)(hdr.version) & 0xff00) << 8 | ((__uint32_t)(hdr.version
) & 0xff0000) >> 8 | ((__uint32_t)(hdr.version) &
 0xff000000) >> 24) : __swap32md(hdr.version)) != GOT_PACKFILE_VERSION2 ||
   be32toh(hdr.nobjects)(__uint32_t)(__builtin_constant_p(hdr.nobjects) ? (__uint32_t
)(((__uint32_t)(hdr.nobjects) & 0xff) << 24 | ((__uint32_t
)(hdr.nobjects) & 0xff00) << 8 | ((__uint32_t)(hdr.
nobjects) & 0xff0000) >> 8 | ((__uint32_t)(hdr.nobjects
) & 0xff000000) >> 24) : __swap32md(hdr.nobjects)) != totobj)
err = got_error(GOT_ERR_BAD_PACKFILE16);

return err;
1068}

1070static const struct got_error *
1071open_packfile(int *fd, struct got_repository *repo,
  const char *relpath, struct got_packidx *packidx)
1073{
const struct got_error *err = NULL((void *)0);

*fd = openat(got_repo_get_fd(repo), relpath, O_RDONLY0x0000 | O_NOFOLLOW0x0100);
if (*fd == -1)
return got_error_from_errno_fmt("openat: %s/%s",
    got_repo_get_path_git_dir(repo), relpath);

if (packidx) {
err = read_packfile_hdr(*fd, packidx);
if (err) {
	close(*fd);
	*fd = -1;
}
}

return err;
1090}

1092const struct got_error *
1093got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
  const char *path_packfile, struct got_packidx *packidx)
1095{
const struct got_error *err = NULL((void *)0);
struct got_pack *pack = NULL((void *)0);
struct stat sb;
size_t i;

if (packp)
*packp = NULL((void *)0);

for (i = 0; i < repo->pack_cache_size; i++) {
pack = &repo->packs[i];
if (pack->path_packfile == NULL((void *)0))
	break;
if (strcmp(pack->path_packfile, path_packfile) == 0)
	return got_error(GOT_ERR_CACHE_DUP_ENTRY116);
}

if (i == repo->pack_cache_size) {
err = got_pack_close(&repo->packs[i - 1]);
if (err)
	return err;
memmove(&repo->packs[1], &repo->packs[0],
    sizeof(repo->packs) - sizeof(repo->packs[0]));
i = 0;
}

pack = &repo->packs[i];

pack->path_packfile = strdup(path_packfile);
if (pack->path_packfile == NULL((void *)0)) {
err = got_error_from_errno("strdup");
goto done;
}

err = open_packfile(&pack->fd, repo, path_packfile, packidx);
if (err)
goto done;

if (fstat(pack->fd, &sb) != 0) {
err = got_error_from_errno("fstat");
goto done;
}
pack->filesize = sb.st_size;

pack->privsep_child = NULL((void *)0);

1141#ifndef GOT_PACK_NO_MMAP
pack->map = mmap(NULL((void *)0), pack->filesize, PROT_READ0x01, MAP_PRIVATE0x0002,
   pack->fd, 0);
if (pack->map == MAP_FAILED((void *)-1)) {
if (errno(*__errno()) != ENOMEM12) {
	err = got_error_from_errno("mmap");
	goto done;
}
pack->map = NULL((void *)0); /* fall back to read(2) */
}
1151#endif
1152done:
if (err) {
if (pack) {
	free(pack->path_packfile);
	memset(pack, 0, sizeof(*pack));
}
} else if (packp)
*packp = pack;
return err;
1161}

1163struct got_pack *
1164got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1165{
struct got_pack *pack = NULL((void *)0);
size_t i;

for (i = 0; i < repo->pack_cache_size; i++) {
pack = &repo->packs[i];
if (pack->path_packfile == NULL((void *)0))
	break;
if (strcmp(pack->path_packfile, path_packfile) == 0)
	return pack;
}

return NULL((void *)0);
1178}

1180const struct got_error *
1181got_repo_init(const char *repo_path)
1182{
const struct got_error *err = NULL((void *)0);
const char *dirnames[] = {
GOT_OBJECTS_DIR"objects",
GOT_OBJECTS_PACK_DIR"objects/pack",
GOT_REFS_DIR"refs",
};
const char *description_str = "Unnamed repository; "
   "edit this file 'description' to name the repository.";
const char *headref_str = "ref: refs/heads/main";
const char *gitconfig_str = "[core]\n"
   "\trepositoryformatversion = 0\n"
   "\tfilemode = true\n"
   "\tbare = true\n";
char *path;
size_t i;

if (!got_path_dir_is_empty(repo_path))
return got_error(GOT_ERR_DIR_NOT_EMPTY75);

for (i = 0; i < nitems(dirnames)(sizeof(dirnames) / sizeof((dirnames)[0])); i++) {
if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
	return got_error_from_errno("asprintf");
}
err = got_path_mkdir(path);
free(path);
if (err)
	return err;
}

if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
return got_error_from_errno("asprintf");
err = got_path_create_file(path, description_str);
free(path);
if (err)
return err;

if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE"HEAD") == -1)
return got_error_from_errno("asprintf");
err = got_path_create_file(path, headref_str);
free(path);
if (err)
return err;

if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
return got_error_from_errno("asprintf");
err = got_path_create_file(path, gitconfig_str);
free(path);
if (err)
return err;

return NULL((void *)0);
1234}

1236static const struct got_error *
1237match_packed_object(struct got_object_id **unique_id,
  struct got_repository *repo, const char *id_str_prefix, int obj_type)
1239{
const struct got_error *err = NULL((void *)0);
DIR *packdir = NULL((void *)0);
struct dirent *dent;
char *path_packidx;
struct got_object_id_queue matched_ids;
int packdir_fd;

SIMPLEQ_INIT(&matched_ids)do { (&matched_ids)->sqh_first = ((void *)0); (&matched_ids
)->sqh_last = &(&matched_ids)->sqh_first; } while
 (0);

packdir_fd = openat(got_repo_get_fd(repo),
   GOT_OBJECTS_PACK_DIR"objects/pack", O_DIRECTORY0x20000);
if (packdir_fd == -1) {
if (errno(*__errno()) != ENOENT2)
	err = got_error_from_errno2("openat", GOT_OBJECTS_PACK_DIR"objects/pack");
goto done;
}

packdir = fdopendir(packdir_fd);
if (packdir == NULL((void *)0)) {
err = got_error_from_errno("fdopendir");
goto done;
}

while ((dent = readdir(packdir)) != NULL((void *)0)) {
struct got_packidx *packidx;
struct got_object_qid *qid;

if (!is_packidx_filename(dent->d_name, dent->d_namlen))
	continue;

if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR"objects/pack",
    dent->d_name) == -1) {
	err = got_error_from_errno("strdup");
	break;
}

err = got_packidx_open(&packidx, got_repo_get_fd(repo),
    path_packidx, 0);
free(path_packidx);
if (err)
	break;

err = got_packidx_match_id_str_prefix(&matched_ids,
    packidx, id_str_prefix);
if (err) {
	got_packidx_close(packidx);
	break;
}
err = got_packidx_close(packidx);
if (err)
	break;

SIMPLEQ_FOREACH(qid, &matched_ids, entry)for((qid) = ((&matched_ids)->sqh_first); (qid) != ((void
 *)0); (qid) = ((qid)->entry.sqe_next)) {
	if (obj_type != GOT_OBJ_TYPE_ANY0) {
		int matched_type;
		err = got_object_get_type(&matched_type, repo,
		    qid->id);
		if (err)
			goto done;
		if (matched_type != obj_type)
			continue;
	}
	if (*unique_id == NULL((void *)0)) {
		*unique_id = got_object_id_dup(qid->id);
		if (*unique_id == NULL((void *)0)) {
			err = got_error_from_errno("malloc");
			goto done;
		}
	} else {
		if (got_object_id_cmp(*unique_id, qid->id) == 0)
			continue; /* packed multiple times */
		err = got_error(GOT_ERR_AMBIGUOUS_ID13);
		goto done;
	}
}
}
1316done:
got_object_id_queue_free(&matched_ids);
if (packdir && closedir(packdir) != 0 && err == NULL((void *)0))
err = got_error_from_errno("closedir");
if (err) {
free(*unique_id);
*unique_id = NULL((void *)0);
}
return err;
1325}

1327static const struct got_error *
1328match_loose_object(struct got_object_id **unique_id, const char *path_objects,
  const char *object_dir, const char *id_str_prefix, int obj_type,
  struct got_repository *repo)
1331{
const struct got_error *err = NULL((void *)0);
char *path;
DIR *dir = NULL((void *)0);
struct dirent *dent;
struct got_object_id id;

if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
err = got_error_from_errno("asprintf");
goto done;
}

dir = opendir(path);
if (dir == NULL((void *)0)) {
if (errno(*__errno()) == ENOENT2) {
	err = NULL((void *)0);
	goto done;
}
err = got_error_from_errno2("opendir", path);
goto done;
}
while ((dent = readdir(dir)) != NULL((void *)0)) {
char *id_str;
int cmp;

if (strcmp(dent->d_name, ".") == 0 ||
    strcmp(dent->d_name, "..") == 0)
	continue;

if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}

if (!got_parse_sha1_digest(id.sha1, id_str))
	continue;

/*
 * Directory entries do not necessarily appear in
 * sorted order, so we must iterate over all of them.
 */
cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
if (cmp != 0) {
	free(id_str);
	continue;
}

if (*unique_id == NULL((void *)0)) {
	if (obj_type != GOT_OBJ_TYPE_ANY0) {
		int matched_type;
		err = got_object_get_type(&matched_type, repo,
		    &id);
		if (err)
			goto done;
		if (matched_type != obj_type)
			continue;
	}
	*unique_id = got_object_id_dup(&id);
	if (*unique_id == NULL((void *)0)) {
		err = got_error_from_errno("got_object_id_dup");
		free(id_str);
		goto done;
	}
} else {
	if (got_object_id_cmp(*unique_id, &id) == 0)
		continue; /* both packed and loose */
	err = got_error(GOT_ERR_AMBIGUOUS_ID13);
	free(id_str);
	goto done;
}
}
1402done:
if (dir && closedir(dir) != 0 && err == NULL((void *)0))
err = got_error_from_errno("closedir");
if (err) {
free(*unique_id);
*unique_id = NULL((void *)0);
}
free(path);
return err;
1411}

1413const struct got_error *
1414got_repo_match_object_id_prefix(struct got_object_id **id,
  const char *id_str_prefix, int obj_type, struct got_repository *repo)
1416{
const struct got_error *err = NULL((void *)0);
char *path_objects = got_repo_get_path_objects(repo);
char *object_dir = NULL((void *)0);
size_t len;
int i;

*id = NULL((void *)0);

for (i = 0; i < strlen(id_str_prefix); i++) {
if (isxdigit((unsigned char)id_str_prefix[i]))
	continue;
return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR23);
}

len = strlen(id_str_prefix);
if (len >= 2) {
err = match_packed_object(id, repo, id_str_prefix, obj_type);
if (err)
	goto done;
object_dir = strndup(id_str_prefix, 2);
if (object_dir == NULL((void *)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
err = match_loose_object(id, path_objects, object_dir,
    id_str_prefix, obj_type, repo);
} else if (len == 1) {
int i;
for (i = 0; i < 0xf; i++) {
	if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
	    == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
	err = match_packed_object(id, repo, object_dir,
	    obj_type);
	if (err)
		goto done;
	err = match_loose_object(id, path_objects, object_dir,
	    id_str_prefix, obj_type, repo);
	if (err)
		goto done;
}
} else {
err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR23);
goto done;
}
1464done:
free(object_dir);
if (err) {
free(*id);
*id = NULL((void *)0);
} else if (*id == NULL((void *)0))
err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ17);

return err;
1473}

1475const struct got_error *
1476got_repo_match_object_id(struct got_object_id **id, char **label,
  const char *id_str, int obj_type, struct got_reflist_head *refs,
  struct got_repository *repo)
1479{
const struct got_error *err;
struct got_tag_object *tag;
struct got_reference *ref = NULL((void *)0);

*id = NULL((void *)0);
if (label)
*label = NULL((void *)0);

if (refs) {
err = got_repo_object_match_tag(&tag, id_str, GOT_OBJ_TYPE_ANY0,
    refs, repo);
if (err == NULL((void *)0)) {
	*id = got_object_id_dup(
	    got_object_tag_get_object_id(tag));
	if (*id == NULL((void *)0))
		err = got_error_from_errno("got_object_id_dup");
	else if (label && asprintf(label, "refs/tags/%s",
	    got_object_tag_get_name(tag)) == -1) {
		err = got_error_from_errno("asprintf");
		free(*id);
		*id = NULL((void *)0);
	}
	got_object_tag_close(tag);
	return err;
} else if (err->code != GOT_ERR_OBJ_TYPE11 &&
    err->code != GOT_ERR_NO_OBJ17)
	return err;
}

err = got_repo_match_object_id_prefix(id, id_str, obj_type, repo);
if (err) {
if (err->code != GOT_ERR_BAD_OBJ_ID_STR23)
	return err;
err = got_ref_open(&ref, repo, id_str, 0);
if (err != NULL((void *)0))
	goto done;
if (label) {
	*label = strdup(got_ref_get_name(ref));
	if (*label == NULL((void *)0)) {
		err = got_error_from_errno("strdup");
		goto done;
	}
}
err = got_ref_resolve(id, repo, ref);
} else if (label) {
err = got_object_id_str(label, *id);
if (*label == NULL((void *)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
}
1531done:
if (ref)
got_ref_close(ref);
return err;
1535}

1537const struct got_error *
1538got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
  int obj_type, struct got_reflist_head *refs, struct got_repository *repo)
1540{
const struct got_error *err = NULL((void *)0);
struct got_reflist_entry *re;
struct got_object_id *tag_id;
int name_is_absolute = (strncmp(name, "refs/", 5) == 0);

*tag = NULL((void *)0);

TAILQ_FOREACH(re, refs, entry)for((re) = ((refs)->tqh_first); (re) != ((void *)0); (re) =
 ((re)->entry.tqe_next)) {
const char *refname;
refname = got_ref_get_name(re->ref);
if (got_ref_is_symbolic(re->ref))
	continue;
if (strncmp(refname, "refs/tags/", 10) != 0)
	continue;
if (!name_is_absolute)
	refname += strlen("refs/tags/");
if (strcmp(refname, name) != 0)
	continue;
err = got_ref_resolve(&tag_id, repo, re->ref);
if (err)
	break;
err = got_object_open_as_tag(tag, repo, tag_id);
free(tag_id);
if (err)
	break;
if (obj_type == GOT_OBJ_TYPE_ANY0 ||
    got_object_tag_get_object_type(*tag) == obj_type)
	break;
got_object_tag_close(*tag);
*tag = NULL((void *)0);
}

if (err == NULL((void *)0) && *tag == NULL((void *)0))
err = got_error_path(name, GOT_ERR_NO_OBJ17);
return err;
1576}

1578static const struct got_error *
1579alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
  const char *name, mode_t mode, struct got_object_id *blob_id)
1581{
const struct got_error *err = NULL((void *)0);

*new_te = NULL((void *)0);

*new_te = calloc(1, sizeof(**new_te));
if (*new_te == NULL((void *)0))
return got_error_from_errno("calloc");

if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
   sizeof((*new_te)->name)) {
err = got_error(GOT_ERR_NO_SPACE9);
goto done;
}

if (S_ISLNK(mode)((mode & 0170000) == 0120000)) {
(*new_te)->mode = S_IFLNK0120000;
} else {
(*new_te)->mode = S_IFREG0100000;
(*new_te)->mode |= (mode & (S_IRWXU0000700 | S_IRWXG0000070 | S_IRWXO0000007));
}
memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
1603done:
if (err && *new_te) {
free(*new_te);
*new_te = NULL((void *)0);
}
return err;
1609}

1611static const struct got_error *
1612import_file(struct got_tree_entry **new_te, struct dirent *de,
  const char *path, struct got_repository *repo)
1614{
const struct got_error *err;
struct got_object_id *blob_id = NULL((void *)0);
char *filepath;
struct stat sb;

if (asprintf(&filepath, "%s%s%s", path,
   path[0] == '\0' ? "" : "/", de->d_name) == -1)
return got_error_from_errno("asprintf");

if (lstat(filepath, &sb) != 0) {
err = got_error_from_errno2("lstat", path);
goto done;
}

err = got_object_blob_create(&blob_id, filepath, repo);
if (err)
goto done;

err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
   blob_id);
1635done:
free(filepath);
if (err)
free(blob_id);
return err;
1640}

1642static const struct got_error *
1643insert_tree_entry(struct got_tree_entry *new_te,
  struct got_pathlist_head *paths)
1645{
const struct got_error *err = NULL((void *)0);
struct got_pathlist_entry *new_pe;

err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
if (err)
return err;
if (new_pe == NULL((void *)0))
return got_error(GOT_ERR_TREE_DUP_ENTRY58);
return NULL((void *)0);
1655}

1657static const struct got_error *write_tree(struct got_object_id **,
  const char *, struct got_pathlist_head *, struct got_repository *,
  got_repo_import_cb progress_cb, void *progress_arg);

1661static const struct got_error *
1662import_subdir(struct got_tree_entry **new_te, struct dirent *de,
  const char *path, struct got_pathlist_head *ignores,
  struct got_repository *repo,
  got_repo_import_cb progress_cb, void *progress_arg)
1666{
const struct got_error *err;
struct got_object_id *id = NULL((void *)0);
char *subdirpath;

if (asprintf(&subdirpath, "%s%s%s", path,
   path[0] == '\0' ? "" : "/", de->d_name) == -1)
return got_error_from_errno("asprintf");

(*new_te) = calloc(1, sizeof(**new_te));
if (*new_te == NULL((void *)0))
return got_error_from_errno("calloc");
(*new_te)->mode = S_IFDIR0040000;
if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
   sizeof((*new_te)->name)) {
err = got_error(GOT_ERR_NO_SPACE9);
goto done;
}
err = write_tree(&id, subdirpath, ignores,  repo,
   progress_cb, progress_arg);
if (err)
goto done;
memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));

1690done:
free(id);
free(subdirpath);
if (err) {
free(*new_te);
*new_te = NULL((void *)0);
}
return err;
1698}

1700static const struct got_error *
1701write_tree(struct got_object_id **new_tree_id, const char *path_dir,
  struct got_pathlist_head *ignores, struct got_repository *repo,
  got_repo_import_cb progress_cb, void *progress_arg)
1704{
const struct got_error *err = NULL((void *)0);
DIR *dir;
struct dirent *de;
int nentries;
struct got_tree_entry *new_te = NULL((void *)0);
struct got_pathlist_head paths;
struct got_pathlist_entry *pe;

*new_tree_id = NULL((void *)0);

TAILQ_INIT(&paths)do { (&paths)->tqh_first = ((void *)0); (&paths)->
tqh_last = &(&paths)->tqh_first; } while (0);

dir = opendir(path_dir);
if (dir == NULL((void *)0)) {
err = got_error_from_errno2("opendir", path_dir);
goto done;
}

nentries = 0;
while ((de = readdir(dir)) != NULL((void *)0)) {
int ignore = 0;
int type;

if (strcmp(de->d_name, ".") == 0 ||
    strcmp(de->d_name, "..") == 0)
	continue;

TAILQ_FOREACH(pe, ignores, entry)for((pe) = ((ignores)->tqh_first); (pe) != ((void *)0); (pe
) = ((pe)->entry.tqe_next)) {
	if (fnmatch(pe->path, de->d_name, 0) == 0) {
		ignore = 1;
		break;
	}
}
if (ignore)
	continue;

err = got_path_dirent_type(&type, path_dir, de);
if (err)
	goto done;

if (type == DT_DIR4) {
	err = import_subdir(&new_te, de, path_dir,
	    ignores, repo, progress_cb, progress_arg);
	if (err) {
		if (err->code != GOT_ERR_NO_TREE_ENTRY50)
			goto done;
		err = NULL((void *)0);
		continue;
	}
} else if (type == DT_REG8 || type == DT_LNK10) {
	err = import_file(&new_te, de, path_dir, repo);
	if (err)
		goto done;
} else
	continue;

err = insert_tree_entry(new_te, &paths);
if (err)
	goto done;
nentries++;
}

if (TAILQ_EMPTY(&paths)(((&paths)->tqh_first) == ((void *)0))) {
err = got_error_msg(GOT_ERR_NO_TREE_ENTRY50,
    "cannot create tree without any entries");
goto done;
}

TAILQ_FOREACH(pe, &paths, entry)for((pe) = ((&paths)->tqh_first); (pe) != ((void *)0);
 (pe) = ((pe)->entry.tqe_next)) {
struct got_tree_entry *te = pe->data;
char *path;
if (!S_ISREG(te->mode)((te->mode & 0170000) == 0100000) && !S_ISLNK(te->mode)((te->mode & 0170000) == 0120000))
	continue;
if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
err = (*progress_cb)(progress_arg, path);
free(path);
if (err)
	goto done;
}

err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
1789done:
if (dir)
closedir(dir);
got_pathlist_free(&paths);
return err;
1794}

1796const struct got_error *
1797got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
  const char *logmsg, const char *author, struct got_pathlist_head *ignores,
  struct got_repository *repo, got_repo_import_cb progress_cb,
  void *progress_arg)
1801{
const struct got_error *err;
struct got_object_id *new_tree_id;

err = write_tree(&new_tree_id, path_dir, ignores, repo,
   progress_cb, progress_arg);
if (err)
return err;

err = got_object_commit_create(new_commit_id, new_tree_id, NULL((void *)0), 0,
   author, time(NULL((void *)0)), author, time(NULL((void *)0)), logmsg, repo);
free(new_tree_id);
return err;
1814}

1816const struct got_error *
1817got_repo_get_loose_object_info(int *nobjects, off_t *ondisk_size,
  struct got_repository *repo)
1819{
const struct got_error *err = NULL((void *)0);
char *path_objects = NULL((void *)0), *path = NULL((void *)0);
DIR *dir = NULL((void *)0);
struct got_object_id id;
int i;

*nobjects = 0;
*ondisk_size = 0;

path_objects = got_repo_get_path_objects(repo);
if (path_objects == NULL((void *)0))
return got_error_from_errno("got_repo_get_path_objects");

for (i = 0; i <= 0xff; i++) {
struct dirent *dent;

if (asprintf(&path, "%s/%.2x", path_objects, i) == -1) {
	err = got_error_from_errno("asprintf");
	break;
}

dir = opendir(path);
if (dir == NULL((void *)0)) {
	if (errno(*__errno()) == ENOENT2) {
		err = NULL((void *)0);
		continue;
	}
	err = got_error_from_errno2("opendir", path);
	break;
}

while ((dent = readdir(dir)) != NULL((void *)0)) {
	char *id_str;
	int fd;
	struct stat sb;

	if (strcmp(dent->d_name, ".") == 0 ||
	    strcmp(dent->d_name, "..") == 0)
		continue;

	if (asprintf(&id_str, "%.2x%s", i, dent->d_name) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}

	if (!got_parse_sha1_digest(id.sha1, id_str)) {
		free(id_str);
		continue;
	}
	free(id_str);

	err = got_object_open_loose_fd(&fd, &id, repo);
	if (err)
		goto done;

	if (fstat(fd, &sb) == -1) {
		err = got_error_from_errno("fstat");
		close(fd);
		goto done;
	}
	(*nobjects)++;
	(*ondisk_size) += sb.st_size;

	if (close(fd) == -1) {
		err = got_error_from_errno("close");
		goto done;
	}
}

if (closedir(dir) != 0) {
	err = got_error_from_errno("closedir");
	goto done;
}
dir = NULL((void *)0);

free(path);
path = NULL((void *)0);
}
1898done:
if (dir && closedir(dir) != 0 && err == NULL((void *)0))
err = got_error_from_errno("closedir");

if (err) {
*nobjects = 0;
*ondisk_size = 0;
}
free(path_objects);
free(path);
return err;
1909}

1911const struct got_error *
1912got_repo_get_packfile_info(int *npackfiles, int *nobjects,
  off_t *total_packsize, struct got_repository *repo)
1914{
const struct got_error *err;
1
'err' declared without an initial value→
DIR *packdir = NULL((void *)0);
struct dirent *dent;
struct got_packidx *packidx = NULL((void *)0);
char *path_packidx;
char *path_packfile;
int packdir_fd;
struct stat sb;

*npackfiles = 0;
*nobjects = 0;
*total_packsize = 0;

packdir_fd = openat(got_repo_get_fd(repo),
   GOT_OBJECTS_PACK_DIR"objects/pack", O_DIRECTORY0x20000);
if (packdir_fd == -1) {
2
←
Assuming the condition is false→
3
←
Taking false branch→
return got_error_from_errno_fmt("openat: %s/%s",
    got_repo_get_path_git_dir(repo),
    GOT_OBJECTS_PACK_DIR"objects/pack");
}

packdir = fdopendir(packdir_fd);
if (packdir == NULL((void *)0)) {
4
←
Assuming 'packdir' is not equal to NULL→
5
←
Taking false branch→
err = got_error_from_errno("fdopendir");
goto done;
}

while ((dent = readdir(packdir)) != NULL((void *)0)) {
6
←
Assuming the condition is false→
7
←
Loop condition is false. Execution continues on line 1982→
if (!is_packidx_filename(dent->d_name, dent->d_namlen))
	continue;

if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR"objects/pack",
    dent->d_name) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}

err = got_packidx_open(&packidx, got_repo_get_fd(repo),
    path_packidx, 0);
free(path_packidx);
if (err)
	goto done;

if (fstat(packidx->fd, &sb) == -1)
	goto done;
*total_packsize += sb.st_size;

err = got_packidx_get_packfile_path(&path_packfile, packidx);
if (err)
	goto done;

if (fstatat(got_repo_get_fd(repo), path_packfile, &sb,
    0) == -1) {
	free(path_packfile);
	goto done;
}
free(path_packfile);
*total_packsize += sb.st_size;

*nobjects += be32toh(packidx->hdr.fanout_table[0xff])(__uint32_t)(__builtin_constant_p(packidx->hdr.fanout_table
[0xff]) ? (__uint32_t)(((__uint32_t)(packidx->hdr.fanout_table
[0xff]) & 0xff) << 24 | ((__uint32_t)(packidx->hdr
.fanout_table[0xff]) & 0xff00) << 8 | ((__uint32_t)
(packidx->hdr.fanout_table[0xff]) & 0xff0000) >>
| ((__uint32_t)(packidx->hdr.fanout_table[0xff]) & 0xff000000
) >> 24) : __swap32md(packidx->hdr.fanout_table[0xff
]));

(*npackfiles)++;

got_packidx_close(packidx);
packidx = NULL((void *)0);
}
1981done:
if (packidx7.1
'packidx' is null
)
8
←
Taking false branch→
got_packidx_close(packidx);
if (packdir8.1
'packdir' is non-null
 && closedir(packdir) != 0 && err == NULL((void *)0))
9
←
Assuming the condition is true→
10
←
The left operand of '==' is a garbage value
err = got_error_from_errno("closedir");
if (err) {
*npackfiles = 0;
*nobjects = 0;
*total_packsize = 0;
}
return err;
1992}