libc-bottom-half/cloudlibc/src/libc/unistd/unlinkat.c

   1 // Copyright (c) 2015-2016 Nuxi, https://nuxi.nl/
   2 //
   3 // SPDX-License-Identifier: BSD-2-Clause
   4
   5 #include <common/errno.h>
   6
   7 #include <wasi/core.h>
   8 #ifdef __wasilibc_unmodified_upstream // unlink
   9 #else
  10 #include <wasi/libc.h>
  11 #endif
  12 #include <errno.h>
  13 #include <fcntl.h>
  14 #include <string.h>
  15 #include <unistd.h>
  16
  17 int unlinkat(int fd, const char *path, int flag) {
  18 #ifdef __wasilibc_unmodified_upstream // unlink
  19   __wasi_ulflags_t ulflags = 0;
  20   if ((flag & AT_REMOVEDIR) != 0)
  21     ulflags |= __WASI_UNLINK_REMOVEDIR;
  22   __wasi_errno_t error =
  23       __wasi_file_unlink(fd, path, strlen(path), ulflags);
  24   if (error != 0) {
  25     errno = errno_fixup_directory(fd, error);
  26     return -1;
  27   }
  28   return 0;
  29 #else
  30   if ((flag & AT_REMOVEDIR) != 0) {
  31     return __wasilibc_rmdirat(fd, path);
  32   }
  33   return __wasilibc_rmfileat(fd, path);
  34 #endif
  35 }