root/compat/stat.c

DEFINITIONS

1. mode_native_to_git
2. git_stat
3. git_fstat
4. git_lstat

#define _POSIX_C_SOURCE 200112L
#include <sys/stat.h>  /* *stat, S_IS* */
#include <sys/types.h> /* mode_t       */

static inline mode_t mode_native_to_git(mode_t native_mode)
{
        mode_t perm_bits = native_mode & 07777;
        if (S_ISREG(native_mode))
                return 0100000 | perm_bits;
        if (S_ISDIR(native_mode))
                return 0040000 | perm_bits;
        if (S_ISLNK(native_mode))
                return 0120000 | perm_bits;
        if (S_ISBLK(native_mode))
                return 0060000 | perm_bits;
        if (S_ISCHR(native_mode))
                return 0020000 | perm_bits;
        if (S_ISFIFO(native_mode))
                return 0010000 | perm_bits;
        if (S_ISSOCK(native_mode))
                return 0140000 | perm_bits;
        /* Non-standard type bits were given. */
        return perm_bits;
}

int git_stat(const char *path, struct stat *buf)
{
        int rc = stat(path, buf);
        if (rc == 0)
                buf->st_mode = mode_native_to_git(buf->st_mode);
        return rc;
}

int git_fstat(int fd, struct stat *buf)
{
        int rc = fstat(fd, buf);
        if (rc == 0)
                buf->st_mode = mode_native_to_git(buf->st_mode);
        return rc;
}

int git_lstat(const char *path, struct stat *buf)
{
        int rc = lstat(path, buf);
        if (rc == 0)
                buf->st_mode = mode_native_to_git(buf->st_mode);
        return rc;
}