diff options
Diffstat (limited to 'libio/iogetdelim.c')
| -rw-r--r-- | libio/iogetdelim.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/libio/iogetdelim.c b/libio/iogetdelim.c index ecb360b..1d14551 100644 --- a/libio/iogetdelim.c +++ b/libio/iogetdelim.c @@ -42,6 +42,7 @@ _IO_getdelim (lineptr, n, delimiter, fp) int delimiter; _IO_FILE *fp; { + int result; register _IO_ssize_t cur_len = 0; _IO_ssize_t len; @@ -53,22 +54,32 @@ _IO_getdelim (lineptr, n, delimiter, fp) return -1; } CHECK_FILE (fp, -1); - if (_IO_ferror (fp)) - return -1; + _IO_flockfile (fp); + if (_IO_ferror_unlocked (fp)) + { + result = -1; + goto unlock_return; + } if (*lineptr == NULL || *n == 0) { *n = 120; *lineptr = (char *) malloc (*n); if (*lineptr == NULL) - return -1; + { + result = -1; + goto unlock_return; + } } len = fp->_IO_read_end - fp->_IO_read_ptr; if (len <= 0) { if (__underflow (fp) == EOF) - return -1; + { + result = -1; + goto unlock_return; + } len = fp->_IO_read_end - fp->_IO_read_ptr; } @@ -88,7 +99,10 @@ _IO_getdelim (lineptr, n, delimiter, fp) *n = needed; *lineptr = (char *) realloc (*lineptr, needed); if (*lineptr == NULL) - return -1; + { + result = -1; + goto unlock_return; + } } memcpy (*lineptr + cur_len, (void *) fp->_IO_read_ptr, len); fp->_IO_read_ptr += len; @@ -98,7 +112,11 @@ _IO_getdelim (lineptr, n, delimiter, fp) len = fp->_IO_read_end - fp->_IO_read_ptr; } (*lineptr)[cur_len] = '\0'; - return cur_len; + result = cur_len; + +unlock_return: + _IO_funlockfile (fp); + return result; } weak_alias (_IO_getdelim, __getdelim) |