diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/futimesat.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/futimesat.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/futimesat.c b/sysdeps/unix/sysv/linux/futimesat.c index 7ab0477c5e..8a87cc442b 100644 --- a/sysdeps/unix/sysv/linux/futimesat.c +++ b/sysdeps/unix/sysv/linux/futimesat.c @@ -37,7 +37,22 @@ futimesat (fd, file, tvp) { char *buf = NULL; - if (fd != AT_FDCWD && file[0] != '/') + if (file == NULL) + { + static const char procfd[] = "/proc/self/fd/%d"; + /* Buffer for the path name we are going to use. It consists of + - the string /proc/self/fd/ + - the file descriptor number. + The final NUL is included in the sizeof. A bit of overhead + due to the format elements compensates for possible negative + numbers. */ + size_t buflen = sizeof (procfd) + sizeof (int) * 3; + buf = alloca (buflen); + + __snprintf (buf, buflen, procfd, fd); + file = buf; + } + else if (fd != AT_FDCWD && file[0] != '/') { size_t filelen = strlen (file); static const char procfd[] = "/proc/self/fd/%d/%s"; |