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Diffstat (limited to 'xargs.c')
| -rw-r--r-- | xargs.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/xargs.c b/xargs.c deleted file mode 100644 index 48adae9..0000000 --- a/xargs.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * Mini xargs implementation for busybox - * - * Copyright (C) 1999,2000,2001 by Lineo, inc. - * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> - * Remixed by Mark Whitley <markw@lineo.com>, <markw@codepoet.org> - * - * 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 <stdlib.h> -#include <string.h> -#include "busybox.h" - -int xargs_main(int argc, char **argv) -{ - char *cmd_to_be_executed = NULL; - char *file_to_act_on = NULL; - - /* - * No options are supported in this version of xargs; no getopt. - * - * Re: The missing -t flag: Most programs that produce output also print - * the filename, so xargs doesn't really need to do it again. Supporting - * the -t flag =greatly= bloats up the size of this app and the memory it - * uses because you have to buffer all the input file strings in memory. If - * you really want to see the filenames that xargs will act on, just run it - * once with no args and xargs will echo the filename. Simple. - */ - - /* Store the command to be executed (taken from the command line) */ - if (argc == 1) { - /* default behavior is to echo all the filenames */ - cmd_to_be_executed = xstrdup("/bin/echo "); - } else { - /* concatenate all the arguments passed to xargs together */ - int i; - int len = 1; /* for the '\0' */ - for (i = 1; i < argc; i++) { - len += strlen(argv[i]); - len += 1; /* for the space between the args */ - cmd_to_be_executed = xrealloc(cmd_to_be_executed, len); - strcat(cmd_to_be_executed, argv[i]); - strcat(cmd_to_be_executed, " "); - } - } - - /* Now, read in one line at a time from stdin, and store this - * line to be used later as an argument to the command */ - while ((file_to_act_on = get_line_from_file(stdin)) !=NULL) { - - FILE *cmd_output = NULL; - char *output_line = NULL; - char *execstr = NULL; - - /* eat the newline off the filename. */ - chomp(file_to_act_on); - - /* eat blank lines */ - if (strlen(file_to_act_on) == 0) - continue; - - /* assemble the command and execute it */ - execstr = xcalloc(strlen(cmd_to_be_executed) + - strlen(file_to_act_on) + 1, sizeof(char)); - strcat(execstr, cmd_to_be_executed); - strcat(execstr, file_to_act_on); - cmd_output = popen(execstr, "r"); - if (cmd_output == NULL) - perror_msg_and_die("popen"); - - /* harvest the output */ - while ((output_line = get_line_from_file(cmd_output)) != NULL) { - fputs(output_line, stdout); - free(output_line); - } - - /* clean up */ - pclose(cmd_output); - free(execstr); - free(file_to_act_on); - } - -#ifdef BB_FEATURE_CLEAN_UP - free(cmd_to_be_executed); -#endif - - return 0; -} - -/* vi: set sw=4 ts=4: */ |