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-rw-r--r--usr.bin/dig/lib/dns/gen.c232
1 files changed, 1 insertions, 231 deletions
diff --git a/usr.bin/dig/lib/dns/gen.c b/usr.bin/dig/lib/dns/gen.c
index c0e8a55df1a..c0a66120cd9 100644
--- a/usr.bin/dig/lib/dns/gen.c
+++ b/usr.bin/dig/lib/dns/gen.c
@@ -80,7 +80,6 @@ static const char copyright[] =
#define STR_EXPAND(tok) #tok
#define STR(tok) STR_EXPAND(tok)
-#define TYPENAMES 256
#define TYPECLASSLEN 20 /* DNS mnemonic size. Must be less than 100. */
#define TYPECLASSBUF (TYPECLASSLEN + 1)
#define TYPECLASSFMT "%" STR(TYPECLASSLEN) "[-0-9a-z]_%d"
@@ -102,18 +101,6 @@ static struct tt {
char dirname[DIRNAMESIZE]; /* XXX Should be max path length */
} *types;
-static struct ttnam {
- char typename[TYPECLASSBUF];
- char macroname[TYPECLASSBUF];
- char attr[ATTRIBUTESIZE];
- unsigned int sorted;
- int type;
-} typenames[TYPENAMES];
-
-static int maxtype = -1;
-
-static char *
-upper(char *);
static char *
funname(const char *, char *);
static void
@@ -123,31 +110,7 @@ static void
add(int, const char *, int, const char *, const char *);
static void
sd(int, const char *, const char *, char);
-static void
-insert_into_typenames(int, const char *, const char *);
-
-/*%
- * If you use more than 10 of these in, say, a printf(), you'll have problems.
- */
-static char *
-upper(char *s) {
- static int buf_to_use = 0;
- static char buf[10][256];
- char *b;
- int c;
- buf_to_use++;
- if (buf_to_use > 9)
- buf_to_use = 0;
-
- b = buf[buf_to_use];
- memset(b, 0, 256);
-
- while ((c = (*s++) & 0xff))
- *b++ = islower(c) ? toupper(c) : c;
- *b = '\0';
- return (buf[buf_to_use]);
-}
static char *
funname(const char *s, char *buf) {
@@ -233,91 +196,6 @@ doswitch(const char *name, const char *function, const char *args,
}
}
-static struct ttnam *
-find_typename(int type) {
- int i;
-
- for (i = 0; i < TYPENAMES; i++) {
- if (typenames[i].typename[0] != 0 &&
- typenames[i].type == type)
- return (&typenames[i]);
- }
- return (NULL);
-}
-
-static void
-insert_into_typenames(int type, const char *typename, const char *attr) {
- struct ttnam *ttn = NULL;
- size_t c;
- int i, n;
- char tmp[256];
-
- INSIST(strlen(typename) < TYPECLASSBUF);
- for (i = 0; i < TYPENAMES; i++) {
- if (typenames[i].typename[0] != 0 &&
- typenames[i].type == type &&
- strcmp(typename, typenames[i].typename) != 0) {
- fprintf(stderr,
- "Error: type %d has two names: %s, %s\n",
- type, typenames[i].typename, typename);
- exit(1);
- }
- if (typenames[i].typename[0] == 0 && ttn == NULL)
- ttn = &typenames[i];
- }
- if (ttn == NULL) {
- fprintf(stderr, "Error: typenames array too small\n");
- exit(1);
- }
-
- /* XXXMUKS: This is redundant due to the INSIST above. */
- if (strlen(typename) > sizeof(ttn->typename) - 1) {
- fprintf(stderr, "Error: type name %s is too long\n",
- typename);
- exit(1);
- }
-
- strncpy(ttn->typename, typename, sizeof(ttn->typename));
- ttn->typename[sizeof(ttn->typename) - 1] = '\0';
-
- strncpy(ttn->macroname, ttn->typename, sizeof(ttn->macroname));
- ttn->macroname[sizeof(ttn->macroname) - 1] = '\0';
-
- ttn->type = type;
- c = strlen(ttn->macroname);
- while (c > 0) {
- if (ttn->macroname[c - 1] == '-')
- ttn->macroname[c - 1] = '_';
- c--;
- }
-
- if (attr == NULL) {
- n = snprintf(tmp, sizeof(tmp),
- "RRTYPE_%s_ATTRIBUTES", upper(ttn->macroname));
- INSIST(n > 0 && (unsigned)n < sizeof(tmp));
- attr = tmp;
- }
-
- if (ttn->attr[0] != 0 && strcmp(attr, ttn->attr) != 0) {
- fprintf(stderr, "Error: type %d has different attributes: "
- "%s, %s\n", type, ttn->attr, attr);
- exit(1);
- }
-
- if (strlen(attr) > sizeof(ttn->attr) - 1) {
- fprintf(stderr, "Error: attr (%s) [name %s] is too long\n",
- attr, typename);
- exit(1);
- }
-
- strncpy(ttn->attr, attr, sizeof(ttn->attr));
- ttn->attr[sizeof(ttn->attr) - 1] = '\0';
-
- ttn->sorted = 0;
- if (maxtype < type)
- maxtype = type;
-}
-
static void
add(int rdclass, const char *classname, int type, const char *typename,
const char *dirname)
@@ -331,8 +209,6 @@ add(int rdclass, const char *classname, int type, const char *typename,
INSIST(strlen(classname) < TYPECLASSBUF);
INSIST(strlen(dirname) < DIRNAMESIZE);
- insert_into_typenames(type, typename, NULL);
-
if (newtt == NULL) {
fprintf(stderr, "malloc() failed\n");
exit(1);
@@ -439,22 +315,6 @@ sd(int rdclass, const char *classname, const char *dirname, char filetype) {
closedir(dirp);
}
-static unsigned int
-HASH(char *string) {
- size_t n;
- unsigned char a, b;
-
- n = strlen(string);
- if (n == 0) {
- fprintf(stderr, "n == 0?\n");
- exit(1);
- }
- a = tolower((unsigned char)string[0]);
- b = tolower((unsigned char)string[n - 1]);
-
- return ((a + n) * b) % 256;
-}
-
int
main(int argc, char **argv) {
DIR *dirp;
@@ -465,8 +325,6 @@ main(int argc, char **argv) {
char classname[TYPECLASSBUF];
struct tt *tt;
struct cc *cc;
- struct ttnam *ttn, *ttn2;
- unsigned int hash;
struct tm *tm;
time_t now;
char year[11];
@@ -476,7 +334,7 @@ main(int argc, char **argv) {
int type_enum = 0;
int structs = 0;
int depend = 0;
- int c, i, j, n;
+ int c, n;
char buf1[TYPECLASSBUF];
char filetype = 'c';
FILE *fd;
@@ -484,9 +342,6 @@ main(int argc, char **argv) {
char *suffix = NULL;
char *file = NULL;
- for (i = 0; i < TYPENAMES; i++)
- memset(&typenames[i], 0, sizeof(typenames[i]));
-
srcdir[0] = '\0';
while ((c = getopt(argc, argv, "cdits:F:P:S:")) != -1)
switch (c) {
@@ -606,91 +461,6 @@ main(int argc, char **argv) {
FROMWIRETYPE, FROMWIRECLASS, FROMWIREDEF);
doswitch("TOWIRESWITCH", "towire", TOWIREARGS,
TOWIRETYPE, TOWIRECLASS, TOWIREDEF);
- /*
- * From here down, we are processing the rdata names and
- * attributes.
- */
-
-#define METAQUESTIONONLY "DNS_RDATATYPEATTR_META | " \
- "DNS_RDATATYPEATTR_QUESTIONONLY"
-#define RESERVED "DNS_RDATATYPEATTR_RESERVED"
-
- /*
- * Add in reserved/special types. This will let us
- * sort them without special cases.
- */
- insert_into_typenames(0, "reserved0", RESERVED);
- insert_into_typenames(31, "eid", RESERVED);
- insert_into_typenames(32, "nimloc", RESERVED);
- insert_into_typenames(34, "atma", RESERVED);
- insert_into_typenames(100, "uinfo", RESERVED);
- insert_into_typenames(101, "uid", RESERVED);
- insert_into_typenames(102, "gid", RESERVED);
- insert_into_typenames(251, "ixfr", METAQUESTIONONLY);
- insert_into_typenames(252, "axfr", METAQUESTIONONLY);
- insert_into_typenames(253, "mailb", METAQUESTIONONLY);
- insert_into_typenames(254, "maila", METAQUESTIONONLY);
- insert_into_typenames(255, "any", METAQUESTIONONLY);
-
- /*
- * Spit out a quick and dirty hash function. Here,
- * we walk through the list of type names, and calculate
- * a hash. This isn't perfect, but it will generate "pretty
- * good" estimates. Lowercase the characters before
- * computing in all cases.
- *
- * Here, walk the list from top to bottom, calculating
- * the hash (mod 256) for each name.
- */
- fprintf(stdout, "#define RDATATYPE_COMPARE(_s, _d, _tn, _n, _tp) \\\n");
- fprintf(stdout, "\tdo { \\\n");
- fprintf(stdout, "\t\tif (sizeof(_s) - 1 == _n && \\\n"
- "\t\t strncasecmp(_s,(_tn),"
- "(sizeof(_s) - 1)) == 0) { \\\n");
- fprintf(stdout, "\t\t\tif ((dns_rdatatype_attributes(_d) & "
- "DNS_RDATATYPEATTR_RESERVED) != 0) \\\n");
- fprintf(stdout, "\t\t\t\treturn (ISC_R_NOTIMPLEMENTED); \\\n");
- fprintf(stdout, "\t\t\t*(_tp) = _d; \\\n");
- fprintf(stdout, "\t\t\treturn (ISC_R_SUCCESS); \\\n");
- fprintf(stdout, "\t\t} \\\n");
- fprintf(stdout, "\t} while (0)\n\n");
-
- fprintf(stdout, "#define RDATATYPE_FROMTEXT_SW(_hash,"
- "_typename,_length,_typep) \\\n");
- fprintf(stdout, "\tswitch (_hash) { \\\n");
- for (i = 0; i <= maxtype; i++) {
- ttn = find_typename(i);
- if (ttn == NULL)
- continue;
-
- /*
- * Skip entries we already processed.
- */
- if (ttn->sorted != 0)
- continue;
-
- hash = HASH(ttn->typename);
- fprintf(stdout, "\t\tcase %u: \\\n", hash);
-
- /*
- * Find all other entries that happen to match
- * this hash.
- */
- for (j = 0; j <= maxtype; j++) {
- ttn2 = find_typename(j);
- if (ttn2 == NULL)
- continue;
- if (hash == HASH(ttn2->typename)) {
- fprintf(stdout, "\t\t\tRDATATYPE_COMPARE"
- "(\"%s\", %d, "
- "_typename, _length, _typep); \\\n",
- ttn2->typename, ttn2->type);
- ttn2->sorted = 1;
- }
- }
- fprintf(stdout, "\t\t\tbreak; \\\n");
- }
- fprintf(stdout, "\t}\n");
fputs("#endif /* DNS_CODE_H */\n", stdout);
} else if (type_enum) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.