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- /* Copyright (C) 1991 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- /* CHANGED FOR VMS */
-
- /*
- * <getline.c>
- */
-
- #include <stddef.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <errno.h>
-
- /* Read up to (and including) a newline from STREAM into *LINEPTR
- (and null-terminate it). *LINEPTR is a pointer returned from malloc (or
- NULL), pointing to *N characters of space. It is realloc'd as
- necessary. Returns the number of characters read (not including the
- null terminator), or -1 on error or EOF. */
-
- int getline(char **lineptr, size_t *n, FILE *stream)
- {
- static char line[256];
- char *ptr;
- unsigned int len;
-
- if (lineptr == NULL || n == NULL)
- {
- errno = EINVAL;
- return -1;
- }
-
- if (ferror (stream))
- return -1;
-
- if (feof(stream))
- return -1;
-
- fgets(line,256,stream);
-
- ptr = strchr(line,'\n');
- if (ptr)
- *ptr = '\0';
-
- len = strlen(line);
-
- if ((len+1) < 256)
- {
- ptr = realloc(*lineptr, 256);
- if (ptr == NULL)
- return(-1);
- *lineptr = ptr;
- *n = 256;
- }
-
- strcpy(*lineptr,line);
- return(len);
- }
-