/* vi: set sw=4 ts=4: */ /* * Utility routines. * * Copyright (C) many different people. If you wrote this, please * 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 */ #include <stdio.h> #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 (ch == '\n' || ch == '\0') 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: */