util/wxcopy.c

   1 /* wxcopy.c- copy stdin or file into cutbuffer
   2  *
   3  *  Copyright (c) 1997 Alfredo K. Kojima
   4  *
   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.
   9  *
  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.
  14  *
  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.
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <X11/Xlib.h>
  24
  25
  26 #define LINESIZE        (4*1024)
  27 #define MAXDATA         (64*1024)
  28
  29 void
  30 help(char *progn)
  31 {
  32     printf("usage: %s [-cutbuffer number] [filename]\n", progn);
  33 }
  34
  35 static int
  36 errorHandler(Display *dpy, XErrorEvent *err)
  37 {
  38     /* ignore all errors */
  39     return 0;
  40 }
  41
  42 int
  43 main(int argc, char **argv)
  44 {
  45     Display *dpy;
  46     int i;
  47     int buffer=-1;
  48     char *filename=NULL;
  49     FILE *file=stdin;
  50     char *buf=NULL;
  51     int l=0;
  52
  53     for (i=1; i<argc; i++) {
  54         if (argv[i][0]=='-') {
  55             if (argv[i][1]=='h') {
  56                 help(argv[0]);
  57                 exit(0);
  58             } else if (strcmp(argv[i],"-cutbuffer")==0) {
  59                 if (i<argc-1) {
  60                     i++;
  61                     if (sscanf(argv[i],"%i", &buffer)!=1) {
  62                         printf("%s: could not convert \"%s\" to int\n",
  63                                argv[0], argv[i]);
  64                         exit(1);
  65                     }
  66                     if (buffer<0 || buffer > 7) {
  67                         printf("%s: invalid buffer number %i\n", argv[0],
  68                                buffer);
  69                         exit(1);
  70                     }
  71                 } else {
  72                     help(argv[0]);
  73                     exit(1);
  74                 }
  75             } else {
  76                 help(argv[0]);
  77                 exit(1);
  78             }
  79         } else {
  80             filename = argv[i];
  81         }
  82     }
  83     if (filename) {
  84         file = fopen(filename, "r");
  85         if (!file) {
  86             char line[1024];
  87             sprintf(line, "%s: could not open \"%s\"", argv[0], filename);
  88             perror(line);
  89             exit(1);
  90         }
  91     }
  92
  93     dpy = XOpenDisplay("");
  94     XSetErrorHandler(errorHandler);
  95     if (!dpy) {
  96         printf("%s: could not open display\n", argv[0]);
  97         exit(1);
  98     }
  99     if (buffer<0) {
 100         XRotateBuffers(dpy, 1);
 101         buffer=0;
 102     }
 103     while (!feof(file)) {
 104         char *nbuf;
 105         char tmp[LINESIZE+2];
 106         int nl=0;
 107
 108         if (!fgets(tmp, LINESIZE, file)) {
 109             break;
 110         }
 111         nl = strlen(tmp);
 112         if (!buf)
 113             nbuf = malloc(l+nl+1);
 114         else
 115             nbuf = realloc(buf, l+nl+1);
 116         if (!nbuf) {
 117             printf("%s: out of memory\n", argv[0]);
 118             exit(1);
 119         }
 120         buf=nbuf;
 121         if (l==0) {
 122             strcpy(buf,tmp);
 123         } else {
 124             strcat(buf, tmp);
 125         }
 126         l+=nl;
 127         if (l>=MAXDATA) {
 128             printf("%s: too much data in input\n", argv[0]);
 129             exit(1);
 130         }
 131     }
 132     if (buf)
 133       XStoreBuffer(dpy, buf, l, buffer);
 134     XFlush(dpy);
 135     XCloseDisplay(dpy);
 136     exit(1);
 137 }
 138