diff options
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 48adae90a..000000000 --- a/xargs.c +++ /dev/null | |||
| @@ -1,105 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Mini xargs implementation for busybox | ||
| 3 | * | ||
| 4 | * Copyright (C) 1999,2000,2001 by Lineo, inc. | ||
| 5 | * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> | ||
| 6 | * Remixed by Mark Whitley <markw@lineo.com>, <markw@codepoet.org> | ||
| 7 | * | ||
| 8 | * This program is free software; you can redistribute it and/or modify | ||
| 9 | * it under the terms of the GNU General Public License as published by | ||
| 10 | * the Free Software Foundation; either version 2 of the License, or | ||
| 11 | * (at your option) any later version. | ||
| 12 | * | ||
| 13 | * This program is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU General Public License | ||
| 19 | * along with this program; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 | * | ||
| 22 | */ | ||
| 23 | |||
| 24 | #include <stdio.h> | ||
| 25 | #include <stdlib.h> | ||
| 26 | #include <string.h> | ||
| 27 | #include "busybox.h" | ||
| 28 | |||
| 29 | int xargs_main(int argc, char **argv) | ||
| 30 | { | ||
| 31 | char *cmd_to_be_executed = NULL; | ||
| 32 | char *file_to_act_on = NULL; | ||
| 33 | |||
| 34 | /* | ||
| 35 | * No options are supported in this version of xargs; no getopt. | ||
| 36 | * | ||
| 37 | * Re: The missing -t flag: Most programs that produce output also print | ||
| 38 | * the filename, so xargs doesn't really need to do it again. Supporting | ||
| 39 | * the -t flag =greatly= bloats up the size of this app and the memory it | ||
| 40 | * uses because you have to buffer all the input file strings in memory. If | ||
| 41 | * you really want to see the filenames that xargs will act on, just run it | ||
| 42 | * once with no args and xargs will echo the filename. Simple. | ||
| 43 | */ | ||
| 44 | |||
| 45 | /* Store the command to be executed (taken from the command line) */ | ||
| 46 | if (argc == 1) { | ||
| 47 | /* default behavior is to echo all the filenames */ | ||
| 48 | cmd_to_be_executed = xstrdup("/bin/echo "); | ||
| 49 | } else { | ||
| 50 | /* concatenate all the arguments passed to xargs together */ | ||
| 51 | int i; | ||
| 52 | int len = 1; /* for the '\0' */ | ||
| 53 | for (i = 1; i < argc; i++) { | ||
| 54 | len += strlen(argv[i]); | ||
| 55 | len += 1; /* for the space between the args */ | ||
| 56 | cmd_to_be_executed = xrealloc(cmd_to_be_executed, len); | ||
| 57 | strcat(cmd_to_be_executed, argv[i]); | ||
| 58 | strcat(cmd_to_be_executed, " "); | ||
| 59 | } | ||
| 60 | } | ||
| 61 | |||
| 62 | /* Now, read in one line at a time from stdin, and store this | ||
| 63 | * line to be used later as an argument to the command */ | ||
| 64 | while ((file_to_act_on = get_line_from_file(stdin)) !=NULL) { | ||
| 65 | |||
| 66 | FILE *cmd_output = NULL; | ||
| 67 | char *output_line = NULL; | ||
| 68 | char *execstr = NULL; | ||
| 69 | |||
| 70 | /* eat the newline off the filename. */ | ||
| 71 | chomp(file_to_act_on); | ||
| 72 | |||
| 73 | /* eat blank lines */ | ||
| 74 | if (strlen(file_to_act_on) == 0) | ||
| 75 | continue; | ||
| 76 | |||
| 77 | /* assemble the command and execute it */ | ||
| 78 | execstr = xcalloc(strlen(cmd_to_be_executed) + | ||
| 79 | strlen(file_to_act_on) + 1, sizeof(char)); | ||
| 80 | strcat(execstr, cmd_to_be_executed); | ||
| 81 | strcat(execstr, file_to_act_on); | ||
| 82 | cmd_output = popen(execstr, "r"); | ||
| 83 | if (cmd_output == NULL) | ||
| 84 | perror_msg_and_die("popen"); | ||
| 85 | |||
| 86 | /* harvest the output */ | ||
| 87 | while ((output_line = get_line_from_file(cmd_output)) != NULL) { | ||
| 88 | fputs(output_line, stdout); | ||
| 89 | free(output_line); | ||
| 90 | } | ||
| 91 | |||
| 92 | /* clean up */ | ||
| 93 | pclose(cmd_output); | ||
| 94 | free(execstr); | ||
| 95 | free(file_to_act_on); | ||
| 96 | } | ||
| 97 | |||
| 98 | #ifdef BB_FEATURE_CLEAN_UP | ||
| 99 | free(cmd_to_be_executed); | ||
| 100 | #endif | ||
| 101 | |||
| 102 | return 0; | ||
| 103 | } | ||
| 104 | |||
| 105 | /* vi: set sw=4 ts=4: */ | ||