diff options
Diffstat (limited to 'src/unistd/ttyname_r.c')
| -rw-r--r-- | src/unistd/ttyname_r.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/unistd/ttyname_r.c b/src/unistd/ttyname_r.c index 2255e2df..a2ce3511 100644 --- a/src/unistd/ttyname_r.c +++ b/src/unistd/ttyname_r.c @@ -3,6 +3,8 @@ #include <stdio.h> #include <string.h> +void __procfdname(char *, unsigned); + int ttyname_r(int fd, char *name, size_t size) { char procname[sizeof "/proc/self/fd/" + 3*sizeof(int) + 2]; @@ -10,7 +12,7 @@ int ttyname_r(int fd, char *name, size_t size) if (!isatty(fd)) return ENOTTY; - snprintf(procname, sizeof procname, "/proc/self/fd/%d", fd); + __procfdname(procname, fd); l = readlink(procname, name, size); if (l < 0) return errno; |