From aad1a88c76f208d188fd061e3723bd637437e8d5 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Fri, 16 Mar 2001 22:47:14 +0000 Subject: Convert utility.c into libbb.a. It is now a whole pile of .c files. Clean up the resulting damage and fix up the makefile. -Erik --- libbb/get_line_from_file.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 libbb/get_line_from_file.c (limited to 'libbb/get_line_from_file.c') diff --git a/libbb/get_line_from_file.c b/libbb/get_line_from_file.c new file mode 100644 index 000000000..759481731 --- /dev/null +++ b/libbb/get_line_from_file.c @@ -0,0 +1,72 @@ +/* vi: set sw=4 ts=4: */ +/* + * Utility routines. + * + * Copyright (C) tons of folks. Tracking down who wrote what + * isn't something I'm going to worry about... If you wrote something + * here, please feel free to acknowledge your work. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Based in part on code from sash, Copyright (c) 1999 by David I. Bell + * Permission has been granted to redistribute this code under the GPL. + * + */ + +#include +#include "libbb.h" + + + +/* get_line_from_file() - This function reads an entire line from a text file + * up to a newline. It returns a malloc'ed char * which must be stored and + * free'ed by the caller. */ +extern char *get_line_from_file(FILE *file) +{ + static const int GROWBY = 80; /* how large we will grow strings by */ + + int ch; + int idx = 0; + char *linebuf = NULL; + int linebufsz = 0; + + while (1) { + ch = fgetc(file); + if (ch == EOF) + break; + /* grow the line buffer as necessary */ + while (idx > linebufsz-2) + linebuf = xrealloc(linebuf, linebufsz += GROWBY); + linebuf[idx++] = (char)ch; + if ((char)ch == '\n') + break; + } + + if (idx == 0) + return NULL; + + linebuf[idx] = 0; + return linebuf; +} + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ -- cgit v1.2.3