1 /* wxcopy.c- copy stdin or file into cutbuffer
3 * Copyright (c) 1997-2003 Alfredo K. Kojima
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #define PROG_VERSION "wxcopy 0.3"
28 #include <X11/Xatom.h>
30 #define LINESIZE (4*1024)
31 #define MAXDATA (64*1024)
33 void help(char *progn
)
35 printf("Usage: %s [OPTIONS] [FILE]\n", progn
);
36 puts("Copies data from FILE or stdin into X cut buffer.");
38 puts(" -display <display> display to use");
39 puts(" --cutbuffer <number> cutbuffer number to put data");
40 puts(" --no-limit do not limit size of input data");
41 puts(" --clear-selection clears the current PRIMARY selection");
42 puts(" --help display this help and exit");
43 puts(" --version output version information and exit");
46 static int errorHandler(Display
* dpy
, XErrorEvent
* err
)
48 /* ignore all errors */
52 int main(int argc
, char **argv
)
57 char *filename
= NULL
;
60 char *display_name
= "";
64 int clear_selection
= 0;
66 for (i
= 1; i
< argc
; i
++) {
67 if (argv
[i
][0] == '-') {
68 if (strcmp(argv
[i
], "--help") == 0) {
71 } else if (strcmp(argv
[i
], "--version") == 0) {
74 } else if (strcmp(argv
[i
], "-cutbuffer") == 0 || strcmp(argv
[i
], "--cutbuffer") == 0) {
77 if (sscanf(argv
[i
], "%i", &buffer
) != 1) {
78 fprintf(stderr
, "%s: could not convert '%s' to int\n",
82 if (buffer
< 0 || buffer
> 7) {
83 fprintf(stderr
, "%s: invalid buffer number %i\n", argv
[0], buffer
);
87 printf("%s: missing argument for '%s'\n", argv
[0], argv
[i
]);
88 printf("Try '%s --help' for more information\n", argv
[0]);
91 } else if (strcmp(argv
[i
], "-display") == 0) {
93 display_name
= argv
[++i
];
95 printf("%s: missing argument for '%s'\n", argv
[0], argv
[i
]);
96 printf("Try '%s --help' for more information\n", argv
[0]);
99 } else if (strcmp(argv
[i
], "-clearselection") == 0
100 || strcmp(argv
[i
], "--clear-selection") == 0) {
102 } else if (strcmp(argv
[i
], "-nolimit") == 0 || strcmp(argv
[i
], "--no-limit") == 0) {
105 printf("%s: invalid argument '%s'\n", argv
[0], argv
[i
]);
106 printf("Try '%s --help' for more information\n", argv
[0]);
114 file
= fopen(filename
, "rb");
117 sprintf(line
, "%s: could not open \"%s\"", argv
[0], filename
);
123 dpy
= XOpenDisplay(display_name
);
124 XSetErrorHandler(errorHandler
);
126 fprintf(stderr
, "%s: could not open display \"%s\"\n", argv
[0], XDisplayName(display_name
));
132 int exists
[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
135 /* Create missing CUT_BUFFERs */
136 rootWinProps
= XListProperties(dpy
, DefaultRootWindow(dpy
), &count
);
137 for (i
= 0; i
< count
; i
++) {
138 switch (rootWinProps
[i
]) {
170 for (i
= 0; i
< 8; i
++) {
172 XStoreBuffer(dpy
, "", 0, i
);
176 XRotateBuffers(dpy
, 1);
180 while (!feof(file
)) {
182 char tmp
[LINESIZE
+ 2];
186 * Use read() instead of fgets() to preserve NULLs, since
187 * especially since there's no reason to read one line at a time.
189 if ((nl
= fread(tmp
, 1, LINESIZE
, file
)) <= 0) {
193 nbuf
= malloc(buf_len
= l
+ nl
+ 1);
194 } else if (buf_len
< l
+ nl
+ 1) {
196 * To avoid terrible performance on big input buffers,
197 * grow by doubling, not by the minimum needed for the
200 buf_len
= 2 * buf_len
+ nl
+ 1;
201 /* some realloc implementations don't do malloc if buf==NULL */
203 nbuf
= malloc(buf_len
);
205 nbuf
= realloc(buf
, buf_len
);
211 fprintf(stderr
, "%s: out of memory\n", argv
[0]);
216 * Don't strcat, since it would make the algorithm n-squared.
217 * Don't use strcpy, since it stops on a NUL.
219 memcpy(buf
+ l
, tmp
, nl
);
221 if (limit_check
&& l
>= MAXDATA
) {
224 "%s: too much data in input - more than %d bytes\n"
225 " use the -nolimit argument to remove the limit check.\n", argv
[0], MAXDATA
);
230 if (clear_selection
) {
231 XSetSelectionOwner(dpy
, XA_PRIMARY
, None
, CurrentTime
);
234 XStoreBuffer(dpy
, buf
, l
, buffer
);
238 exit(buf
== NULL
|| errno
!= 0);