3 #include "locale_impl.h"
7 const unsigned char *__map_file(const char *, size_t *);
8 int __munmap(void *, size_t);
9 char *__strchrnul(const char *, int);
11 static struct __locale_map *findlocale(const char *name, size_t n)
13 static void *loc_head;
14 struct __locale_map *p, *new, *old_head;
15 const char *path = 0, *z;
21 for (p=loc_head; p; p=p->next)
22 if (!strcmp(name, p->name)) return p;
24 if (strchr(name, '/')) return 0;
26 if (!libc.secure) path = getenv("MUSL_LOCPATH");
27 /* FIXME: add a default path? */
30 for (; *path; path=z+!!*z) {
31 z = __strchrnul(path, ':');
33 if (l >= sizeof buf - n - 2) continue;
36 memcpy(buf+l+1, name, n);
38 map = __map_file(buf, &map_size);
40 new = malloc(sizeof *new);
42 __munmap((void *)map, map_size);
46 new->map_size = map_size;
47 memcpy(new->name, name, n);
52 } while (a_cas_p(&loc_head, old_head, new) != old_head);
59 static const char envvars[][12] = {
68 int __setlocalecat(locale_t loc, int cat, const char *val)
71 (val = getenv("LC_ALL")) && *val ||
72 (val = getenv(envvars[cat])) && *val ||
73 (val = getenv("LANG")) && *val ||
77 size_t n = strnlen(val, LOCALE_NAME_MAX);
78 int builtin = (val[0]=='C' && !val[1])
79 || !strcmp(val, "C.UTF-8")
80 || !strcmp(val, "POSIX");
81 struct __locale_map *data, *old;
85 a_store(&loc->ctype_utf8, !builtin || val[1]=='.');
89 loc->messages_name[0] = 0;
91 memcpy(loc->messages_name, val, n);
92 loc->messages_name[n] = 0;
96 data = builtin ? 0 : findlocale(val, n);
97 if (data == loc->cat[cat-2]) break;
98 do old = loc->cat[cat-2];
99 while (a_cas_p(&loc->cat[cat-2], old, data) != old);