diff options
| -rw-r--r-- | src/locale/catclose.c | 8 | ||||
| -rw-r--r-- | src/locale/catgets.c | 34 | ||||
| -rw-r--r-- | src/locale/catopen.c | 75 |
3 files changed, 114 insertions, 3 deletions
diff --git a/src/locale/catclose.c b/src/locale/catclose.c index 02cd3e5c..54e24dd2 100644 --- a/src/locale/catclose.c +++ b/src/locale/catclose.c @@ -1,6 +1,14 @@ +#define _BSD_SOURCE #include <nl_types.h> +#include <stdint.h> +#include <endian.h> +#include <sys/mman.h> + +#define V(p) be32toh(*(uint32_t *)(p)) int catclose (nl_catd catd) { + char *map = (char *)catd; + munmap(map, V(map+8)+20); return 0; } diff --git a/src/locale/catgets.c b/src/locale/catgets.c index bbee8986..d4a44b35 100644 --- a/src/locale/catgets.c +++ b/src/locale/catgets.c @@ -1,6 +1,38 @@ +#define _BSD_SOURCE #include <nl_types.h> +#include <endian.h> +#include <stdlib.h> +#include <stdint.h> +#include <errno.h> + +#define V(p) be32toh(*(uint32_t *)(p)) + +int cmp(const void *a, const void *b) +{ + uint32_t x = V(a), y = V(b); + return x<y ? -1 : x>y ? 1 : 0; +} char *catgets (nl_catd catd, int set_id, int msg_id, const char *s) { - return (char *)s; + const char *map = (const char *)catd; + uint32_t nsets = V(map+4); + const char *sets = map+20; + const char *msgs = map+20+V(map+12); + const char *strings = map+20+V(map+16); + uint32_t set_id_be = htobe32(set_id); + uint32_t msg_id_be = htobe32(msg_id); + const char *set = bsearch(&set_id_be, sets, nsets, 12, cmp); + if (!set) { + errno = ENOMSG; + return (char *)s; + } + uint32_t nmsgs = V(set+4); + msgs += 12*V(set+8); + const char *msg = bsearch(&msg_id_be, msgs, nmsgs, 12, cmp); + if (!msg) { + errno = ENOMSG; + return (char *)s; + } + return (char *)(strings + V(msg+8)); } diff --git a/src/locale/catopen.c b/src/locale/catopen.c index 3fbc7717..97f2446d 100644 --- a/src/locale/catopen.c +++ b/src/locale/catopen.c @@ -1,8 +1,79 @@ +#define _BSD_SOURCE #include <nl_types.h> +#include <string.h> +#include <stdint.h> +#include <endian.h> #include <errno.h> +#include <langinfo.h> +#include <locale.h> +#include <sys/mman.h> +#include "libc.h" -nl_catd catopen (const char *name, int oflag) +#define V(p) be32toh(*(uint32_t *)(p)) + +static nl_catd do_catopen(const char *name) +{ + size_t size; + const unsigned char *map = __map_file(name, &size); + /* Size recorded in the file must match file size; otherwise + * the information needed to unmap the file will be lost. */ + if (!map || V(map) != 0xff88ff89 || 20+V(map+8) != size) { + if(map) munmap((void *)map, size); + errno = ENOENT; + return (nl_catd)-1; + } + return (nl_catd)map; +} + +nl_catd catopen(const char *name, int oflag) { - errno = EOPNOTSUPP; + nl_catd catd; + + if (strchr(name, '/')) return do_catopen(name); + + char buf[PATH_MAX]; + size_t i; + const char *path, *lang, *p, *z; + if (libc.secure || !(path = getenv("NLSPATH"))) { + errno = ENOENT; + return (nl_catd)-1; + } + lang = oflag ? nl_langinfo(_NL_LOCALE_NAME(LC_MESSAGES)) : getenv("LANG"); + if (!lang) lang = ""; + for (p=path; *p; p=z) { + i = 0; + z = __strchrnul(p, ':'); + for (; p<z; p++) { + const char *v; + size_t l; + if (*p!='%') v=p, l=1; + else switch (*++p) { + case 'N': v=name; l=strlen(v); break; + case 'L': v=lang; l=strlen(v); break; + case 'l': v=lang; l=strcspn(v,"_.@"); break; + case 't': + v=__strchrnul(lang,'_'); + if (*v) v++; + l=strcspn(v,".@"); + break; + case 'c': v="UTF-8"; l=5; break; + case '%': v="%"; l=1; break; + default: v=0; + } + if (!v || l >= sizeof buf - i) { + break; + } + memcpy(buf+i, v, l); + i += l; + } + if (!*z && (p<z || !i)) break; + if (p<z) continue; + if (*z) z++; + buf[i] = 0; + /* Leading : or :: in NLSPATH is same as %N */ + catd = do_catopen(i ? buf : name); + if (catd != (nl_catd)-1) return catd; + } + errno = ENOENT; return (nl_catd)-1; } |