author | Anselm R. Garbe <garbeam@wmii.de> |
Tue, 11 Jul 2006 11:10:05 +0200 | |
changeset 6 | e0cefb3981c8 |
parent 5 | e5018cae273f |
child 9 | d567f430a81d |
permissions | -rw-r--r-- |
2 | 1 |
/* |
2 |
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com> |
|
3 |
* See LICENSE file for license details. |
|
4 |
*/ |
|
5 |
||
6 |
#include <stdarg.h> |
|
7 |
#include <stdio.h> |
|
8 |
#include <stdlib.h> |
|
3
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
9 |
#include <string.h> |
5 | 10 |
#include <sys/types.h> |
11 |
#include <sys/wait.h> |
|
12 |
#include <unistd.h> |
|
13 |
||
14 |
#include "util.h" |
|
2 | 15 |
|
6 | 16 |
static char *shell = NULL; |
17 |
||
2 | 18 |
void |
19 |
error(char *errstr, ...) { |
|
20 |
va_list ap; |
|
21 |
va_start(ap, errstr); |
|
22 |
vfprintf(stderr, errstr, ap); |
|
23 |
va_end(ap); |
|
24 |
exit(1); |
|
25 |
} |
|
26 |
||
3
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
27 |
static void |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
28 |
bad_malloc(unsigned int size) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
29 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
30 |
fprintf(stderr, "fatal: could not malloc() %d bytes\n", |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
31 |
(int) size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
32 |
exit(1); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
33 |
} |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
34 |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
35 |
void * |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
36 |
emallocz(unsigned int size) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
37 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
38 |
void *res = calloc(1, size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
39 |
if(!res) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
40 |
bad_malloc(size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
41 |
return res; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
42 |
} |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
43 |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
44 |
void * |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
45 |
emalloc(unsigned int size) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
46 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
47 |
void *res = malloc(size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
48 |
if(!res) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
49 |
bad_malloc(size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
50 |
return res; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
51 |
} |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
52 |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
53 |
void * |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
54 |
erealloc(void *ptr, unsigned int size) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
55 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
56 |
void *res = realloc(ptr, size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
57 |
if(!res) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
58 |
bad_malloc(size); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
59 |
return res; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
60 |
} |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
61 |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
62 |
char * |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
63 |
estrdup(const char *str) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
64 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
65 |
void *res = strdup(str); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
66 |
if(!res) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
67 |
bad_malloc(strlen(str)); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
68 |
return res; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
69 |
} |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
70 |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
71 |
void |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
72 |
failed_assert(char *a, char *file, int line) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
73 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
74 |
fprintf(stderr, "Assertion \"%s\" failed at %s:%d\n", a, file, line); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
75 |
abort(); |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
76 |
} |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
77 |
|
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
78 |
void |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
79 |
swap(void **p1, void **p2) |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
80 |
{ |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
81 |
void *tmp = *p1; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
82 |
*p1 = *p2; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
83 |
*p2 = tmp; |
e969f3575b7a
several new changes, made gridmenu working
Anselm R. Garbe <garbeam@wmii.de>
parents:
2
diff
changeset
|
84 |
} |
5 | 85 |
|
86 |
void |
|
6 | 87 |
spawn(Display *dpy, const char *cmd) |
5 | 88 |
{ |
6 | 89 |
if(!shell && !(shell = getenv("SHELL"))) |
90 |
shell = "/bin/sh"; |
|
91 |
||
92 |
if(!cmd) |
|
5 | 93 |
return; |
94 |
if(fork() == 0) { |
|
95 |
if(fork() == 0) { |
|
6 | 96 |
setsid(); |
5 | 97 |
if(dpy) |
98 |
close(ConnectionNumber(dpy)); |
|
6 | 99 |
execlp(shell, "shell", "-c", cmd, NULL); |
100 |
fprintf(stderr, "gridwm: execvp %s", cmd); |
|
5 | 101 |
perror(" failed"); |
102 |
} |
|
103 |
exit (0); |
|
104 |
} |
|
105 |
wait(0); |
|
106 |
} |
|
6 | 107 |
|
108 |
void |
|
109 |
pipe_spawn(char *buf, unsigned int len, Display *dpy, const char *cmd) |
|
110 |
{ |
|
111 |
unsigned int l, n; |
|
112 |
int pfd[2]; |
|
113 |
||
114 |
if(!shell && !(shell = getenv("SHELL"))) |
|
115 |
shell = "/bin/sh"; |
|
116 |
||
117 |
if(!cmd) |
|
118 |
return; |
|
119 |
||
120 |
if(pipe(pfd) == -1) { |
|
121 |
perror("pipe"); |
|
122 |
exit(1); |
|
123 |
} |
|
124 |
||
125 |
if(fork() == 0) { |
|
126 |
setsid(); |
|
127 |
if(dpy) |
|
128 |
close(ConnectionNumber(dpy)); |
|
129 |
dup2(pfd[1], STDOUT_FILENO); |
|
130 |
close(pfd[0]); |
|
131 |
close(pfd[1]); |
|
132 |
execlp(shell, "shell", "-c", cmd, NULL); |
|
133 |
fprintf(stderr, "gridwm: execvp %s", cmd); |
|
134 |
perror(" failed"); |
|
135 |
} |
|
136 |
else { |
|
137 |
n = 0; |
|
138 |
close(pfd[1]); |
|
139 |
while(l > n) { |
|
140 |
if((l = read(pfd[0], buf + n, len - n)) < 1) |
|
141 |
break; |
|
142 |
n += l; |
|
143 |
} |
|
144 |
close(pfd[0]); |
|
145 |
buf[n - 1] = 0; |
|
146 |
} |
|
147 |
wait(0); |
|
148 |
} |