diff options
Diffstat (limited to 'newlib/libc/stdio/fseek.c')
-rw-r--r-- | newlib/libc/stdio/fseek.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/newlib/libc/stdio/fseek.c b/newlib/libc/stdio/fseek.c index 1b7298914..10c6c532e 100644 --- a/newlib/libc/stdio/fseek.c +++ b/newlib/libc/stdio/fseek.c @@ -96,6 +96,8 @@ fseek (fp, offset, whence) struct stat st; int havepos; + _flockfile(fp); + /* Make sure stdio is set up. */ CHECK_INIT (fp); @@ -115,6 +117,7 @@ fseek (fp, offset, whence) if ((seekfn = fp->_seek) == NULL) { ptr->_errno = ESPIPE; /* ??? */ + _funlockfile(fp); return EOF; } @@ -138,6 +141,7 @@ fseek (fp, offset, whence) { curoff = (*seekfn) (fp->_cookie, (fpos_t) 0, SEEK_CUR); if (curoff == -1L) + _funlockfile(fp); return EOF; } if (fp->_flags & __SRD) @@ -161,6 +165,7 @@ fseek (fp, offset, whence) default: ptr->_errno = EINVAL; + _funlockfile(fp); return (EOF); } @@ -262,6 +267,7 @@ fseek (fp, offset, whence) if (HASUB (fp)) FREEUB (fp); fp->_flags &= ~__SEOF; + _funlockfile(fp); return 0; } @@ -290,6 +296,7 @@ fseek (fp, offset, whence) fp->_p += n; fp->_r -= n; } + _funlockfile(fp); return 0; /* @@ -299,7 +306,10 @@ fseek (fp, offset, whence) dumb: if (fflush (fp) || (*seekfn) (fp->_cookie, offset, whence) == POS_ERR) - return EOF; + { + _funlockfile(fp); + return EOF; + } /* success: clear EOF indicator and discard ungetc() data */ if (HASUB (fp)) FREEUB (fp); @@ -307,5 +317,6 @@ dumb: fp->_r = 0; /* fp->_w = 0; *//* unnecessary (I think...) */ fp->_flags &= ~__SEOF; + _funlockfile(fp); return 0; } |