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Merge branch 'rs/strbuf-getcwd'

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Reduce the use of fixed sized buffer passed to getcwd() calls
by introducing xgetcwd() helper.

* rs/strbuf-getcwd:
  use strbuf_add_absolute_path() to add absolute paths
  abspath: convert absolute_path() to strbuf
  use xgetcwd() to set $GIT_DIR
  use xgetcwd() to get the current directory or die
  wrapper: add xgetcwd()
  abspath: convert real_path_internal() to strbuf
  abspath: use strbuf_getcwd() to remember original working directory
  setup: convert setup_git_directory_gently_1 et al. to strbuf
  unix-sockets: use strbuf_getcwd()
  strbuf: add strbuf_getcwd()
This commit is contained in:
Junio C Hamano
2014-09-02 13:27:45 -07:00
parent 51eeaea210 9610decf4d
commit f655651e09
15 changed files with 191 additions and 178 deletions
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14
unix-socket.c
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@ -18,12 +18,12 @@ static int chdir_len(const char *orig, int len)
}
struct unix_sockaddr_context {
char orig_dir[PATH_MAX];
char *orig_dir;
};
static void unix_sockaddr_cleanup(struct unix_sockaddr_context *ctx)
{
if (!ctx->orig_dir[0])
if (!ctx->orig_dir)
return;
/*
* If we fail, we can't just return an error, since we have
@ -32,6 +32,7 @@ static void unix_sockaddr_cleanup(struct unix_sockaddr_context *ctx)
*/
if (chdir(ctx->orig_dir) < 0)
die("unable to restore original working directory");
free(ctx->orig_dir);
}
static int unix_sockaddr_init(struct sockaddr_un *sa, const char *path,
@ -39,10 +40,11 @@ static int unix_sockaddr_init(struct sockaddr_un *sa, const char *path,
{
int size = strlen(path) + 1;
ctx->orig_dir[0] = '\0';
ctx->orig_dir = NULL;
if (size > sizeof(sa->sun_path)) {
const char *slash = find_last_dir_sep(path);
const char *dir;
struct strbuf cwd = STRBUF_INIT;
if (!slash) {
errno = ENAMETOOLONG;
@ -56,11 +58,9 @@ static int unix_sockaddr_init(struct sockaddr_un *sa, const char *path,
errno = ENAMETOOLONG;
return -1;
}
if (!getcwd(ctx->orig_dir, sizeof(ctx->orig_dir))) {
errno = ENAMETOOLONG;
if (strbuf_getcwd(&cwd))
return -1;
}
ctx->orig_dir = strbuf_detach(&cwd, NULL);
if (chdir_len(dir, slash - dir) < 0)
return -1;
}