1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
*
*
* xcprint.c - functions to print help, version, errors, etc
* Copyright (C) 2001 Kim Saunders
* Copyright (C) 2007-2008 Peter Åstrand
*
* 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 <stdarg.h>
#include <string.h>
#include "xcdef.h"
#include "xclib.h"
#include "xcprint.h"
/* print the help screen. argument is argv[0] from main() */
void
prhelp(char *name)
{
fprintf(stderr,
"Usage: %s [OPTION] [FILE]...\n"
"Access an X server selection for reading or writing.\n"
"\n"
" -i, -in read text into X selection from standard input or files\n"
" (default)\n"
" -o, -out prints the selection to standard out (generally for\n"
" piping to a file or program)\n"
" -l, -loops number of selection requests to "
"wait for before exiting\n"
" -d, -display X display to connect to (eg "
"localhost:0\")\n"
" -h, -help usage information\n"
" -selection selection to access (\"primary\", "
"\"secondary\", \"clipboard\" or \"buffer-cut\")\n"
" -noutf8 don't treat text as utf-8, use old unicode\n"
" -target use the given target atom\n"
" -rmlastnl remove the last newline character if present\n"
" -version version information\n"
" -silent errors only, run in background (default)\n"
" -quiet run in foreground, show what's happening\n"
" -verbose running commentary\n"
"\n" "Report bugs to <astrand@lysator.liu.se>\n", name);
exit(EXIT_SUCCESS);
}
/* A function to print the software version info */
void
prversion(void)
{
fprintf(stderr, "%s version %s\n", PACKAGE_NAME, PACKAGE_VERSION);
fprintf(stderr, "Copyright (C) 2001-2008 Kim Saunders et al.\n");
fprintf(stderr, "Distributed under the terms of the GNU GPL\n");
exit(EXIT_SUCCESS);
}
/* failure message for malloc() problems */
void
errmalloc(void)
{
fprintf(stderr, "Error: Could not allocate memory.\n");
exit(EXIT_FAILURE);
}
/* failure to connect to X11 display */
void
errxdisplay(char *display)
{
/* if the display wasn't specified, read it from the environment
* just like XOpenDisplay would
*/
if (display == NULL)
display = getenv("DISPLAY");
fprintf(stderr, "Error: Can't open display: %s\n", display ? display : "(null)");
exit(EXIT_FAILURE);
}
/* a wrapper for perror that joins multiple prefixes together. Arguments
* are an integer, and any number of strings. The integer needs to be set to
* the number of strings that follow.
*/
void
errperror(int prf_tot, ...)
{
va_list ap; /* argument pointer */
char *msg_all; /* all messages so far */
char *msg_cur; /* current message string */
int prf_cur; /* current prefix number */
/* start off with an empty string */
msg_all = xcstrdup("");
/* start looping through the variable arguments */
va_start(ap, prf_tot);
/* loop through each of the arguments */
for (prf_cur = 0; prf_cur < prf_tot; prf_cur++) {
/* get the current argument */
msg_cur = va_arg(ap, char *);
/* realloc msg_all so it's big enough for itself, the current
* argument, and a null terminator
*/
msg_all = (char *) xcrealloc(msg_all, strlen(msg_all) + strlen(msg_cur) + sizeof(char)
);
/* append the current message to the total message */
strcat(msg_all, msg_cur);
}
va_end(ap);
perror(msg_all);
/* free the complete string */
free(msg_all);
}
|
