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| author | Érico Nogueira <ericonr@disroot.org> | 2021-05-03 22:51:51 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-05-07 13:54:43 -0300 |
| commit | 0fb3dadca2548df348904d083b4d911fa25503f5 (patch) | |
| tree | 52e265aa7bea977c82a615ccffdd9482138168ec /sysdeps | |
| parent | 330001202ada53dcf3de81f95edc2616f8d75c68 (diff) | |
| download | glibc-0fb3dadca2548df348904d083b4d911fa25503f5.zip glibc-0fb3dadca2548df348904d083b4d911fa25503f5.tar.gz glibc-0fb3dadca2548df348904d083b4d911fa25503f5.tar.bz2 | |
linux: use fd_to_filename instead of _fitoa_word in ttyname_r.
Simplifies the logic and makes intent clearer, while at the same time
decreasing binary size.
On x86_64, dropped from 1883270 to 1883206, a 64 byte decrease.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/ttyname_r.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/ttyname_r.c b/sysdeps/unix/sysv/linux/ttyname_r.c index c1092d1..fa1578f 100644 --- a/sysdeps/unix/sysv/linux/ttyname_r.c +++ b/sysdeps/unix/sysv/linux/ttyname_r.c @@ -26,7 +26,7 @@ #include <string.h> #include <stdlib.h> -#include <_itoa.h> +#include <fd_to_filename.h> #include "ttyname.h" @@ -92,7 +92,7 @@ getttyname_r (char *buf, size_t buflen, const struct stat64 *mytty, int __ttyname_r (int fd, char *buf, size_t buflen) { - char procname[30]; + struct fd_to_filename filename; struct stat64 st, st1; int dostat = 0; int doispty = 0; @@ -122,9 +122,7 @@ __ttyname_r (int fd, char *buf, size_t buflen) return errno; /* We try using the /proc filesystem. */ - *_fitoa_word (fd, __stpcpy (procname, "/proc/self/fd/"), 10, 0) = '\0'; - - ssize_t ret = __readlink (procname, buf, buflen - 1); + ssize_t ret = __readlink (__fd_to_filename (fd, &filename), buf, buflen - 1); if (__glibc_unlikely (ret == -1 && errno == ENAMETOOLONG)) { __set_errno (ERANGE); |