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#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)) static 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) { 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)); } |