1 #include <u.h>
2 #include <libc.h>
3 #include <bio.h>
4 #include <thread.h>
5 #include <plumb.h>
6 #include <9pclient.h>
7 #include "dat.h"
8 
9 void*
10 emalloc(uint n)
11 {
12 	void *p;
13 
14 	p = malloc(n);
15 	if(p == nil)
16 		error("can't malloc: %r");
17 	memset(p, 0, n);
18 	setmalloctag(p, getcallerpc(&n));
19 	return p;
20 }
21 
22 void*
23 erealloc(void *p, uint n)
24 {
25 	p = realloc(p, n);
26 	if(p == nil)
27 		error("can't realloc: %r");
28 	setmalloctag(p, getcallerpc(&n));
29 	return p;
30 }
31 
32 char*
33 estrdup(char *s)
34 {
35 	char *t;
36 
37 	t = emalloc(strlen(s)+1);
38 	strcpy(t, s);
39 	return t;
40 }
41 
42 char*
43 estrstrdup(char *s, char *t)
44 {
45 	char *u;
46 
47 	u = emalloc(strlen(s)+strlen(t)+1);
48 	strcpy(u, s);
49 	strcat(u, t);
50 	return u;
51 }
52 
53 char*
54 eappend(char *s, char *sep, char *t)
55 {
56 	char *u;
57 
58 	if(t == nil)
59 		u = estrstrdup(s, sep);
60 	else{
61 		u = emalloc(strlen(s)+strlen(sep)+strlen(t)+1);
62 		strcpy(u, s);
63 		strcat(u, sep);
64 		strcat(u, t);
65 	}
66 	free(s);
67 	return u;
68 }
69 
70 char*
71 egrow(char *s, char *sep, char *t)
72 {
73 	s = eappend(s, sep, t);
74 	free(t);
75 	return s;
76 }
77 
78 void
79 error(char *fmt, ...)
80 {
81 	Fmt f;
82 	char buf[64];
83 	va_list arg;
84 
85 	fmtfdinit(&f, 2, buf, sizeof buf);
86 	fmtprint(&f, "Mail: ");
87 	va_start(arg, fmt);
88 	fmtvprint(&f, fmt, arg);
89 	va_end(arg);
90 	fmtprint(&f, "\n");
91 	fmtfdflush(&f);
92 	threadexitsall(fmt);
93 }
94 
95 void
96 ctlprint(CFid *fd, char *fmt, ...)
97 {
98 	int n;
99 	va_list arg;
100 
101 	va_start(arg, fmt);
102 	n = fsvprint(fd, fmt, arg);
103 	va_end(arg);
104 	if(n <= 0)
105 		error("control file write error: %r");
106 }
107