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: */ | ||