1 7285a491 2004-06-17 devnull #include <u.h>
2 7285a491 2004-06-17 devnull #include <libc.h>
3 7285a491 2004-06-17 devnull #include <bio.h>
4 7285a491 2004-06-17 devnull #include <libsec.h>
5 7285a491 2004-06-17 devnull #include <ctype.h>
7 7285a491 2004-06-17 devnull #include "iso9660.h"
9 7285a491 2004-06-17 devnull typedef struct Stringtab Stringtab;
10 7285a491 2004-06-17 devnull struct Stringtab {
11 7285a491 2004-06-17 devnull Stringtab *link;
12 7285a491 2004-06-17 devnull char *str;
15 7285a491 2004-06-17 devnull static Stringtab *stab[1024];
17 7285a491 2004-06-17 devnull static uint
18 7285a491 2004-06-17 devnull hash(char *s)
21 7285a491 2004-06-17 devnull uchar *p;
24 7285a491 2004-06-17 devnull for(p=(uchar*)s; *p; p++)
25 7285a491 2004-06-17 devnull h = h*37 + *p;
26 7285a491 2004-06-17 devnull return h;
29 7285a491 2004-06-17 devnull static char*
30 7285a491 2004-06-17 devnull estrdup(char *s)
32 7285a491 2004-06-17 devnull if((s = strdup(s)) == nil)
33 7285a491 2004-06-17 devnull sysfatal("strdup(%.10s): out of memory", s);
34 7285a491 2004-06-17 devnull return s;
38 7285a491 2004-06-17 devnull atom(char *str)
41 7285a491 2004-06-17 devnull Stringtab *tab;
43 7285a491 2004-06-17 devnull h = hash(str) % nelem(stab);
44 7285a491 2004-06-17 devnull for(tab=stab[h]; tab; tab=tab->link)
45 7285a491 2004-06-17 devnull if(strcmp(str, tab->str) == 0)
46 7285a491 2004-06-17 devnull return tab->str;
48 7285a491 2004-06-17 devnull tab = emalloc(sizeof *tab);
49 7285a491 2004-06-17 devnull tab->str = estrdup(str);
50 7285a491 2004-06-17 devnull tab->link = stab[h];
51 7285a491 2004-06-17 devnull stab[h] = tab;
52 7285a491 2004-06-17 devnull return tab->str;
56 7285a491 2004-06-17 devnull emalloc(ulong n)
60 7285a491 2004-06-17 devnull if((p = malloc(n)) == nil)
61 7285a491 2004-06-17 devnull sysfatal("malloc(%lud): out of memory", n);
62 7285a491 2004-06-17 devnull memset(p, 0, n);
63 7285a491 2004-06-17 devnull return p;
67 7285a491 2004-06-17 devnull erealloc(void *v, ulong n)
69 7285a491 2004-06-17 devnull if((v = realloc(v, n)) == nil)
70 7285a491 2004-06-17 devnull sysfatal("realloc(%p, %lud): out of memory", v, n);
71 7285a491 2004-06-17 devnull return v;
75 7285a491 2004-06-17 devnull struprcpy(char *p, char *s)
77 7285a491 2004-06-17 devnull char *op;
80 7285a491 2004-06-17 devnull for(; *s; s++)
81 3bd56b04 2005-09-09 devnull *p++ = toupper((uchar)*s);
82 7285a491 2004-06-17 devnull *p = '\0';
84 7285a491 2004-06-17 devnull return op;
88 7285a491 2004-06-17 devnull chat(char *fmt, ...)
90 7285a491 2004-06-17 devnull va_list arg;
92 7285a491 2004-06-17 devnull if(!chatty)
93 7285a491 2004-06-17 devnull return 0;
94 7285a491 2004-06-17 devnull va_start(arg, fmt);
95 7285a491 2004-06-17 devnull vfprint(2, fmt, arg);
96 7285a491 2004-06-17 devnull va_end(arg);
97 7285a491 2004-06-17 devnull return 1;