1 7cf289ca 2004-04-06 devnull #include <u.h>
  2 7cf289ca 2004-04-06 devnull #include <libc.h>
  3 7cf289ca 2004-04-06 devnull #include <bio.h>
  4 7cf289ca 2004-04-06 devnull #include <draw.h>
  5 7cf289ca 2004-04-06 devnull #include <html.h>
  6 7cf289ca 2004-04-06 devnull #include "dat.h"
  7 7cf289ca 2004-04-06 devnull 
  8 7cf289ca 2004-04-06 devnull void*
  9 7cf289ca 2004-04-06 devnull emalloc(ulong n)
 10 7cf289ca 2004-04-06 devnull {
 11 7cf289ca 2004-04-06 devnull 	void *p;
 12 7cf289ca 2004-04-06 devnull 
 13 7cf289ca 2004-04-06 devnull 	p = malloc(n);
 14 7cf289ca 2004-04-06 devnull 	if(p == nil)
 15 7cf289ca 2004-04-06 devnull 		error("can't malloc: %r");
 16 7cf289ca 2004-04-06 devnull 	memset(p, 0, n);
 17 7cf289ca 2004-04-06 devnull 	return p;
 18 7cf289ca 2004-04-06 devnull }
 19 7cf289ca 2004-04-06 devnull 
 20 7cf289ca 2004-04-06 devnull void*
 21 7cf289ca 2004-04-06 devnull erealloc(void *p, ulong n)
 22 7cf289ca 2004-04-06 devnull {
 23 7cf289ca 2004-04-06 devnull 	p = realloc(p, n);
 24 7cf289ca 2004-04-06 devnull 	if(p == nil)
 25 7cf289ca 2004-04-06 devnull 		error("can't malloc: %r");
 26 7cf289ca 2004-04-06 devnull 	return p;
 27 7cf289ca 2004-04-06 devnull }
 28 7cf289ca 2004-04-06 devnull 
 29 7cf289ca 2004-04-06 devnull char*
 30 7cf289ca 2004-04-06 devnull estrdup(char *s)
 31 7cf289ca 2004-04-06 devnull {
 32 7cf289ca 2004-04-06 devnull 	char *t;
 33 7cf289ca 2004-04-06 devnull 
 34 7cf289ca 2004-04-06 devnull 	t = emalloc(strlen(s)+1);
 35 7cf289ca 2004-04-06 devnull 	strcpy(t, s);
 36 7cf289ca 2004-04-06 devnull 	return t;
 37 7cf289ca 2004-04-06 devnull }
 38 7cf289ca 2004-04-06 devnull 
 39 7cf289ca 2004-04-06 devnull char*
 40 7cf289ca 2004-04-06 devnull estrstrdup(char *s, char *t)
 41 7cf289ca 2004-04-06 devnull {
 42 7cf289ca 2004-04-06 devnull 	long ns, nt;
 43 7cf289ca 2004-04-06 devnull 	char *u;
 44 7cf289ca 2004-04-06 devnull 
 45 7cf289ca 2004-04-06 devnull 	ns = strlen(s);
 46 7cf289ca 2004-04-06 devnull 	nt = strlen(t);
 47 7cf289ca 2004-04-06 devnull 	/* use malloc to avoid memset */
 48 7cf289ca 2004-04-06 devnull 	u = malloc(ns+nt+1);
 49 7cf289ca 2004-04-06 devnull 	if(u == nil)
 50 7cf289ca 2004-04-06 devnull 		error("can't malloc: %r");
 51 7cf289ca 2004-04-06 devnull 	memmove(u, s, ns);
 52 7cf289ca 2004-04-06 devnull 	memmove(u+ns, t, nt);
 53 7cf289ca 2004-04-06 devnull 	u[ns+nt] = '\0';
 54 7cf289ca 2004-04-06 devnull 	return u;
 55 7cf289ca 2004-04-06 devnull }
 56 7cf289ca 2004-04-06 devnull 
 57 7cf289ca 2004-04-06 devnull char*
 58 7cf289ca 2004-04-06 devnull eappend(char *s, char *sep, char *t)
 59 7cf289ca 2004-04-06 devnull {
 60 7cf289ca 2004-04-06 devnull 	long ns, nsep, nt;
 61 7cf289ca 2004-04-06 devnull 	char *u;
 62 7cf289ca 2004-04-06 devnull 
 63 7cf289ca 2004-04-06 devnull 	if(t == nil)
 64 7cf289ca 2004-04-06 devnull 		u = estrstrdup(s, sep);
 65 7cf289ca 2004-04-06 devnull 	else{
 66 7cf289ca 2004-04-06 devnull 		ns = strlen(s);
 67 7cf289ca 2004-04-06 devnull 		nsep = strlen(sep);
 68 7cf289ca 2004-04-06 devnull 		nt = strlen(t);
 69 7cf289ca 2004-04-06 devnull 		/* use malloc to avoid memset */
 70 7cf289ca 2004-04-06 devnull 		u = malloc(ns+nsep+nt+1);
 71 7cf289ca 2004-04-06 devnull 		if(u == nil)
 72 7cf289ca 2004-04-06 devnull 			error("can't malloc: %r");
 73 7cf289ca 2004-04-06 devnull 		memmove(u, s, ns);
 74 7cf289ca 2004-04-06 devnull 		memmove(u+ns, sep, nsep);
 75 7cf289ca 2004-04-06 devnull 		memmove(u+ns+nsep, t, nt);
 76 7cf289ca 2004-04-06 devnull 		u[ns+nsep+nt] = '\0';
 77 7cf289ca 2004-04-06 devnull 	}
 78 7cf289ca 2004-04-06 devnull 	free(s);
 79 7cf289ca 2004-04-06 devnull 	return u;
 80 7cf289ca 2004-04-06 devnull }
 81 7cf289ca 2004-04-06 devnull 
 82 7cf289ca 2004-04-06 devnull char*
 83 7cf289ca 2004-04-06 devnull egrow(char *s, char *sep, char *t)
 84 7cf289ca 2004-04-06 devnull {
 85 7cf289ca 2004-04-06 devnull 	s = eappend(s, sep, t);
 86 7cf289ca 2004-04-06 devnull 	free(t);
 87 7cf289ca 2004-04-06 devnull 	return s;
 88 7cf289ca 2004-04-06 devnull }
 89 7cf289ca 2004-04-06 devnull 
 90 7cf289ca 2004-04-06 devnull void
 91 7cf289ca 2004-04-06 devnull error(char *fmt, ...)
 92 7cf289ca 2004-04-06 devnull {
 93 7cf289ca 2004-04-06 devnull 	va_list arg;
 94 7cf289ca 2004-04-06 devnull 	char buf[256];
 95 7cf289ca 2004-04-06 devnull 	Fmt f;
 96 7cf289ca 2004-04-06 devnull 
 97 7cf289ca 2004-04-06 devnull 	fmtfdinit(&f, 2, buf, sizeof buf);
 98 7cf289ca 2004-04-06 devnull 	fmtprint(&f, "Mail: ");
 99 7cf289ca 2004-04-06 devnull 	va_start(arg, fmt);
100 7cf289ca 2004-04-06 devnull 	fmtvprint(&f, fmt, arg);
101 7cf289ca 2004-04-06 devnull 	va_end(arg);
102 7cf289ca 2004-04-06 devnull 	fmtprint(&f, "\n");
103 7cf289ca 2004-04-06 devnull 	fmtfdflush(&f);
104 7cf289ca 2004-04-06 devnull 	exits(fmt);
105 7cf289ca 2004-04-06 devnull }
106 7cf289ca 2004-04-06 devnull 
107 7cf289ca 2004-04-06 devnull void
108 7cf289ca 2004-04-06 devnull growbytes(Bytes *b, char *s, long ns)
109 7cf289ca 2004-04-06 devnull {
110 7cf289ca 2004-04-06 devnull 	if(b->nalloc < b->n + ns + 1){
111 7cf289ca 2004-04-06 devnull 		b->nalloc = b->n + ns + 8000;
112 7cf289ca 2004-04-06 devnull 		/* use realloc to avoid memset */
113 7cf289ca 2004-04-06 devnull 		b->b = realloc(b->b, b->nalloc);
114 7cf289ca 2004-04-06 devnull 		if(b->b == nil)
115 7cf289ca 2004-04-06 devnull 			error("growbytes: can't realloc: %r");
116 7cf289ca 2004-04-06 devnull 	}
117 7cf289ca 2004-04-06 devnull 	memmove(b->b+b->n, s, ns);
118 7cf289ca 2004-04-06 devnull 	b->n += ns;
119 7cf289ca 2004-04-06 devnull 	b->b[b->n] = '\0';
120 7cf289ca 2004-04-06 devnull }