reactos/CMake
1
0
Fork 0
mirror of https://github.com/reactos/CMake.git synced 2025-01-22 19:44:50 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge topic 'libuv-gnu-hurd'

Browse Source 
3c0bfb596f libuv: do not require PATH_MAX to be defined

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !2422
This commit is contained in:
Brad King 2018-10-03 12:03:42 +00:00 committed by Kitware Robot
commit a4b9e59568
1 changed files with 39 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
Utilities/cmlibuv/src/unix/fs.c
View File

@ -425,19 +425,22 @@ static ssize_t uv__fs_scandir(uv_fs_t* req) {
return n;
}
#if defined(_POSIX_PATH_MAX)
# define UV__FS_PATH_MAX _POSIX_PATH_MAX
#elif defined(PATH_MAX)
# define UV__FS_PATH_MAX PATH_MAX
#else
# define UV__FS_PATH_MAX_FALLBACK 8192
# define UV__FS_PATH_MAX UV__FS_PATH_MAX_FALLBACK
#endif
static ssize_t uv__fs_pathmax_size(const char* path) {
ssize_t pathmax;
pathmax = pathconf(path, _PC_PATH_MAX);
if (pathmax == -1) {
#if defined(PATH_MAX)
return PATH_MAX;
#else
#error "PATH_MAX undefined in the current platform"
#endif
}
if (pathmax == -1)
pathmax = UV__FS_PATH_MAX;
return pathmax;
}
@ -446,7 +449,28 @@ static ssize_t uv__fs_readlink(uv_fs_t* req) {
ssize_t len;
char* buf;
#if defined(UV__FS_PATH_MAX_FALLBACK)
/* We may not have a real PATH_MAX. Read size of link. */
struct stat st;
int ret;
ret = lstat(req->path, &st);
if (ret != 0)
return -1;
if (!S_ISLNK(st.st_mode)) {
errno = EINVAL;
return -1;
}
len = st.st_size;
/* According to readlink(2) lstat can report st_size == 0
for some symlinks, such as those in /proc or /sys. */
if (len == 0)
len = uv__fs_pathmax_size(req->path);
#else
len = uv__fs_pathmax_size(req->path);
#endif
buf = uv__malloc(len + 1);
if (buf == NULL) {
@ -473,9 +497,15 @@ static ssize_t uv__fs_readlink(uv_fs_t* req) {
}
static ssize_t uv__fs_realpath(uv_fs_t* req) {
ssize_t len;
char* buf;
#if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L
buf = realpath(req->path, NULL);
if (buf == NULL)
return -1;
#else
ssize_t len;
len = uv__fs_pathmax_size(req->path);
buf = uv__malloc(len + 1);
@ -488,6 +518,7 @@ static ssize_t uv__fs_realpath(uv_fs_t* req) {
uv__free(buf);
return -1;
}
#endif
req->ptr = buf;