%{
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <netdb.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "parse.h"
#include "extern.h"
TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
static struct file {
TAILQ_ENTRY(file) entry;
FILE *stream;
char *name;
size_t ungetpos;
size_t ungetsize;
u_char *ungetbuf;
int eof_reached;
int lineno;
int errors;
} *file, *topfile;
struct file *pushfile(const char *);
int popfile(void);
int yyparse(void);
int yylex(void);
int yyerror(const char *, ...)
__attribute__((__format__ (printf, 1, 2)))
__attribute__((__nonnull__ (1)));
int kw_cmp(const void *, const void *);
int lookup(char *);
int igetc(void);
int lgetc(int);
void lungetc(int);
int findeol(void);
struct authority_c *conf_new_authority(struct acme_conf *, char *);
struct domain_c *conf_new_domain(struct acme_conf *, char *);
struct keyfile *conf_new_keyfile(struct acme_conf *, char *);
void clear_config(struct acme_conf *);
const char* kt2txt(enum keytype);
void print_config(struct acme_conf *);
int conf_check_file(char *);
TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
struct sym {
TAILQ_ENTRY(sym) entry;
int used;
int persist;
char *nam;
char *val;
};
int symset(const char *, const char *, int);
char *symget(const char *);
static struct acme_conf *conf;
static struct authority_c *auth;
static struct domain_c *domain;
static int errors = 0;
typedef struct {
union {
int64_t number;
char *string;
} v;
int lineno;
} YYSTYPE;
%}
%token AUTHORITY URL API ACCOUNT CONTACT
%token DOMAIN ALTERNATIVE NAME NAMES CERT FULL CHAIN KEY SIGN WITH
%token CHALLENGEDIR PROFILE
%token INCLUDE
%token ERROR
%token RSA ECDSA
%token INSECURE
%token <v.string> STRING
%token <v.number> NUMBER
%type <v.string> string
%type <v.number> keytype
%%
grammar :
| grammar include '\n'
| grammar varset '\n'
| grammar '\n'
| grammar authority '\n'
| grammar domain '\n'
| grammar error '\n' { file->errors++; }
;
include : INCLUDE STRING {
struct file *nfile;
if ((nfile = pushfile($2)) == NULL) {
yyerror("failed to include file %s", $2);
free($2);
YYERROR;
}
free($2);
file = nfile;
lungetc('\n');
}
;
string : string STRING {
if (asprintf(&$$, "%s %s", $1, $2) == -1) {
free($1);
free($2);
yyerror("string: asprintf");
YYERROR;
}
free($1);
free($2);
}
| STRING
;
varset : STRING '=' string {
char *s = $1;
if (conf->opts & ACME_OPT_VERBOSE)
printf("%s = \"%s\"\n", $1, $3);
while (*s++) {
if (isspace((unsigned char)*s)) {
yyerror("macro name cannot contain "
"whitespace");
free($1);
free($3);
YYERROR;
}
}
if (symset($1, $3, 0) == -1)
errx(EXIT_FAILURE, "cannot store variable");
free($1);
free($3);
}
;
optnl : '\n' optnl
|
;
nl : '\n' optnl
;
optcommanl : ',' optnl
| optnl
;
authority : AUTHORITY STRING {
char *s;
if ((s = strdup($2)) == NULL)
err(EXIT_FAILURE, "strdup");
if ((auth = conf_new_authority(conf, s)) == NULL) {
free(s);
yyerror("authority already defined");
YYERROR;
}
} '{' optnl authorityopts_l '}' {
if (auth->api == NULL) {
yyerror("authority %s: no api URL specified",
auth->name);
YYERROR;
}
if (auth->account == NULL) {
yyerror("authority %s: no account key file "
"specified", auth->name);
YYERROR;
}
auth = NULL;
}
;
authorityopts_l : authorityopts_l authorityoptsl nl
| authorityoptsl optnl
;
authorityoptsl : API URL STRING {
char *s;
if (auth->api != NULL) {
yyerror("duplicate api");
YYERROR;
}
if ((s = strdup($3)) == NULL)
err(EXIT_FAILURE, "strdup");
auth->api = s;
}
| ACCOUNT KEY STRING keytype {
char *s;
if (auth->account != NULL) {
yyerror("duplicate account");
YYERROR;
}
if ((s = strdup($3)) == NULL)
err(EXIT_FAILURE, "strdup");
auth->account = s;
auth->keytype = $4;
}
| CONTACT STRING {
char *s;
if (auth->contact != NULL) {
yyerror("duplicate contact");
YYERROR;
}
if ((s = strdup($2)) == NULL)
err(EXIT_FAILURE, "strdup");
auth->contact = s;
}
| INSECURE {
auth->insecure = 1;
}
;
domain : DOMAIN STRING {
char *s;
if ((s = strdup($2)) == NULL)
err(EXIT_FAILURE, "strdup");
if (!ip_valid(s) && !domain_valid(s)) {
yyerror("%s: bad domain syntax", s);
free(s);
YYERROR;
}
if ((domain = conf_new_domain(conf, s)) == NULL) {
free(s);
yyerror("domain already defined");
YYERROR;
}
} '{' optnl domainopts_l '}' {
char *s;
const char *ip;
if (domain->domain == NULL) {
if ((ip = ip_valid(domain->handle)) != NULL) {
domain->idtype = ID_IP;
if ((s = strdup(ip)) == NULL)
err(EXIT_FAILURE, "strdup");
} else {
if ((s = strdup(domain->handle)) ==
NULL)
err(EXIT_FAILURE, "strdup");
domain->idtype = ID_DNS;
}
domain->domain = s;
}
if (domain->key == NULL) {
yyerror("no domain key file specified for "
"domain %s", domain->domain);
YYERROR;
}
if (domain->cert == NULL && domain->fullchain == NULL) {
yyerror("at least certificate file or full "
"certificate chain file must be specified "
"for domain %s", domain->domain);
YYERROR;
}
domain = NULL;
}
;
keytype : RSA { $$ = KT_RSA; }
| ECDSA { $$ = KT_ECDSA; }
| { $$ = KT_RSA; }
;
domainopts_l : domainopts_l domainoptsl nl
| domainoptsl optnl
;
domainoptsl : ALTERNATIVE NAMES '{' optnl altname_l '}'
| DOMAIN NAME STRING {
char *s;
const char *ip;
if (domain->domain != NULL) {
yyerror("duplicate domain name");
YYERROR;
}
if ((ip = ip_valid($3)) != NULL) {
domain->idtype = ID_IP;
if ((s = strdup(ip)) == NULL)
err(EXIT_FAILURE, "strdup");
} else {
if (!domain_valid($3)) {
yyerror("bad domain name syntax");
YYERROR;
}
domain->idtype = ID_DNS;
if ((s = strdup($3)) == NULL)
err(EXIT_FAILURE, "strdup");
}
domain->domain = s;
}
| DOMAIN KEY STRING keytype {
char *s;
if (domain->key != NULL) {
yyerror("duplicate key");
YYERROR;
}
if ((s = strdup($3)) == NULL)
err(EXIT_FAILURE, "strdup");
if (!conf_check_file(s)) {
free(s);
YYERROR;
}
if ((conf_new_keyfile(conf, s)) == NULL) {
free(s);
yyerror("domain key file already used");
YYERROR;
}
domain->key = s;
domain->keytype = $4;
}
| DOMAIN CERT STRING {
char *s;
if (domain->cert != NULL) {
yyerror("duplicate cert");
YYERROR;
}
if ((s = strdup($3)) == NULL)
err(EXIT_FAILURE, "strdup");
if (s[0] != '/') {
free(s);
yyerror("not an absolute path");
YYERROR;
}
if ((conf_new_keyfile(conf, s)) == NULL) {
free(s);
yyerror("domain cert file already used");
YYERROR;
}
domain->cert = s;
}
| DOMAIN CHAIN CERT STRING {
char *s;
if (domain->chain != NULL) {
yyerror("duplicate chain");
YYERROR;
}
if ((s = strdup($4)) == NULL)
err(EXIT_FAILURE, "strdup");
if ((conf_new_keyfile(conf, s)) == NULL) {
free(s);
yyerror("domain chain file already used");
YYERROR;
}
domain->chain = s;
}
| DOMAIN FULL CHAIN CERT STRING {
char *s;
if (domain->fullchain != NULL) {
yyerror("duplicate full chain");
YYERROR;
}
if ((s = strdup($5)) == NULL)
err(EXIT_FAILURE, "strdup");
if ((conf_new_keyfile(conf, s)) == NULL) {
free(s);
yyerror("domain full chain file already used");
YYERROR;
}
domain->fullchain = s;
}
| SIGN WITH STRING {
char *s;
if (domain->auth != NULL) {
yyerror("duplicate sign with");
YYERROR;
}
if ((s = strdup($3)) == NULL)
err(EXIT_FAILURE, "strdup");
if (authority_find(conf, s) == NULL) {
yyerror("sign with: unknown authority");
free(s);
YYERROR;
}
domain->auth = s;
}
| CHALLENGEDIR STRING {
char *s;
if (domain->challengedir != NULL) {
yyerror("duplicate challengedir");
YYERROR;
}
if ((s = strdup($2)) == NULL)
err(EXIT_FAILURE, "strdup");
domain->challengedir = s;
}
| PROFILE STRING {
char *s;
if (domain->profile != NULL) {
yyerror("duplicate profile");
YYERROR;
}
if ((s = strdup($2)) == NULL)
err(EXIT_FAILURE, "strdup");
domain->profile = s;
}
;
altname_l : altname optcommanl altname_l
| altname optnl
;
altname : STRING {
char *s;
const char *ip;
struct altname_c *ac;
if ((ac = calloc(1, sizeof(struct altname_c))) == NULL)
err(EXIT_FAILURE, "calloc");
if ((ip = ip_valid($1)) != NULL) {
ac->idtype = ID_IP;
if ((s = strdup(ip)) == NULL)
err(EXIT_FAILURE, "strdup");
} else {
if (!domain_valid($1)) {
yyerror("bad domain name syntax");
YYERROR;
}
ac->idtype = ID_DNS;
if ((s = strdup($1)) == NULL)
err(EXIT_FAILURE, "strdup");
}
ac->domain = s;
TAILQ_INSERT_TAIL(&domain->altname_list, ac, entry);
domain->altname_count++;
}
%%
struct keywords {
const char *k_name;
int k_val;
};
int
yyerror(const char *fmt, ...)
{
va_list ap;
char *msg;
file->errors++;
va_start(ap, fmt);
if (vasprintf(&msg, fmt, ap) == -1)
err(EXIT_FAILURE, "yyerror vasprintf");
va_end(ap);
fprintf(stderr, "%s:%d: %s\n", file->name, yylval.lineno, msg);
free(msg);
return (0);
}
int
kw_cmp(const void *k, const void *e)
{
return strcmp(k, ((const struct keywords *)e)->k_name);
}
int
lookup(char *s)
{
static const struct keywords keywords[] = {
{"account", ACCOUNT},
{"alternative", ALTERNATIVE},
{"api", API},
{"authority", AUTHORITY},
{"certificate", CERT},
{"chain", CHAIN},
{"challengedir", CHALLENGEDIR},
{"contact", CONTACT},
{"domain", DOMAIN},
{"ecdsa", ECDSA},
{"full", FULL},
{"include", INCLUDE},
{"insecure", INSECURE},
{"key", KEY},
{"name", NAME},
{"names", NAMES},
{"profile", PROFILE},
{"rsa", RSA},
{"sign", SIGN},
{"url", URL},
{"with", WITH},
};
const struct keywords *p;
p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
sizeof(keywords[0]), kw_cmp);
if (p != NULL)
return p->k_val;
else
return STRING;
}
#define START_EXPAND 1
#define DONE_EXPAND 2
static int expanding;
int
igetc(void)
{
int c;
while (1) {
if (file->ungetpos > 0)
c = file->ungetbuf[--file->ungetpos];
else
c = getc(file->stream);
if (c == START_EXPAND)
expanding = 1;
else if (c == DONE_EXPAND)
expanding = 0;
else
break;
}
return c;
}
int
lgetc(int quotec)
{
int c, next;
if (quotec) {
if ((c = igetc()) == EOF) {
yyerror("reached end of file while parsing "
"quoted string");
if (file == topfile || popfile() == EOF)
return (EOF);
return quotec;
}
return c;
}
while ((c = igetc()) == '\\') {
next = igetc();
if (next != '\n') {
c = next;
break;
}
yylval.lineno = file->lineno;
file->lineno++;
}
if (c == EOF) {
if (file->eof_reached == 0) {
file->eof_reached = 1;
return '\n';
}
while (c == EOF) {
if (file == topfile || popfile() == EOF)
return (EOF);
c = igetc();
}
}
return c;
}
void
lungetc(int c)
{
if (c == EOF)
return;
if (file->ungetpos >= file->ungetsize) {
void *p = reallocarray(file->ungetbuf, file->ungetsize, 2);
if (p == NULL)
err(1, "%s", __func__);
file->ungetbuf = p;
file->ungetsize *= 2;
}
file->ungetbuf[file->ungetpos++] = c;
}
int
findeol(void)
{
int c;
while (1) {
c = lgetc(0);
if (c == '\n') {
file->lineno++;
break;
}
if (c == EOF)
break;
}
return ERROR;
}
int
yylex(void)
{
char buf[8096];
char *p, *val;
int quotec, next, c;
int token;
top:
p = buf;
while ((c = lgetc(0)) == ' ' || c == '\t')
;
yylval.lineno = file->lineno;
if (c == '#')
while ((c = lgetc(0)) != '\n' && c != EOF)
;
if (c == '$' && !expanding) {
while (1) {
if ((c = lgetc(0)) == EOF)
return 0;
if (p + 1 >= buf + sizeof(buf) - 1) {
yyerror("string too long");
return findeol();
}
if (isalnum(c) || c == '_') {
*p++ = c;
continue;
}
*p = '\0';
lungetc(c);
break;
}
val = symget(buf);
if (val == NULL) {
yyerror("macro '%s' not defined", buf);
return findeol();
}
p = val + strlen(val) - 1;
lungetc(DONE_EXPAND);
while (p >= val) {
lungetc((unsigned char)*p);
p--;
}
lungetc(START_EXPAND);
goto top;
}
switch (c) {
case '\'':
case '"':
quotec = c;
while (1) {
if ((c = lgetc(quotec)) == EOF)
return 0;
if (c == '\n') {
file->lineno++;
continue;
} else if (c == '\\') {
if ((next = lgetc(quotec)) == EOF)
return 0;
if (next == quotec || next == ' ' ||
next == '\t')
c = next;
else if (next == '\n') {
file->lineno++;
continue;
} else
lungetc(next);
} else if (c == quotec) {
*p = '\0';
break;
} else if (c == '\0') {
yyerror("syntax error");
return findeol();
}
if (p + 1 >= buf + sizeof(buf) - 1) {
yyerror("string too long");
return findeol();
}
*p++ = c;
}
yylval.v.string = strdup(buf);
if (yylval.v.string == NULL)
err(EXIT_FAILURE, "%s", __func__);
return STRING;
}
#define allowed_to_end_number(x) \
(isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
if (c == '-' || isdigit(c)) {
do {
*p++ = c;
if ((size_t)(p-buf) >= sizeof(buf)) {
yyerror("string too long");
return findeol();
}
} while ((c = lgetc(0)) != EOF && isdigit(c));
lungetc(c);
if (p == buf + 1 && buf[0] == '-')
goto nodigits;
if (c == EOF || allowed_to_end_number(c)) {
const char *errstr = NULL;
*p = '\0';
yylval.v.number = strtonum(buf, LLONG_MIN,
LLONG_MAX, &errstr);
if (errstr != NULL) {
yyerror("\"%s\" invalid number: %s",
buf, errstr);
return (findeol());
}
return NUMBER;
} else {
nodigits:
while (p > buf + 1)
lungetc((unsigned char)*--p);
c = (unsigned char)*--p;
if (c == '-')
return c;
}
}
#define allowed_in_string(x) \
(isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
x != '{' && x != '}' && \
x != '!' && x != '=' && x != '#' && \
x != ','))
if (isalnum(c) || c == ':' || c == '_') {
do {
*p++ = c;
if ((size_t)(p-buf) >= sizeof(buf)) {
yyerror("string too long");
return (findeol());
}
} while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
lungetc(c);
*p = '\0';
if ((token = lookup(buf)) == STRING) {
if ((yylval.v.string = strdup(buf)) == NULL)
err(EXIT_FAILURE, "%s", __func__);
}
return token;
}
if (c == '\n') {
yylval.lineno = file->lineno;
file->lineno++;
}
if (c == EOF)
return 0;
return c;
}
struct file *
pushfile(const char *name)
{
struct file *nfile;
if ((nfile = calloc(1, sizeof(struct file))) == NULL) {
warn("%s", __func__);
return NULL;
}
if ((nfile->name = strdup(name)) == NULL) {
warn("%s", __func__);
free(nfile);
return NULL;
}
if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
warn("%s: %s", __func__, nfile->name);
free(nfile->name);
free(nfile);
return NULL;
}
nfile->lineno = TAILQ_EMPTY(&files) ? 1 : 0;
nfile->ungetsize = 16;
nfile->ungetbuf = malloc(nfile->ungetsize);
if (nfile->ungetbuf == NULL) {
warn("%s", __func__);
fclose(nfile->stream);
free(nfile->name);
free(nfile);
return NULL;
}
TAILQ_INSERT_TAIL(&files, nfile, entry);
return nfile;
}
int
popfile(void)
{
struct file *prev;
if ((prev = TAILQ_PREV(file, files, entry)) != NULL)
prev->errors += file->errors;
TAILQ_REMOVE(&files, file, entry);
fclose(file->stream);
free(file->name);
free(file->ungetbuf);
free(file);
file = prev;
return (file ? 0 : EOF);
}
struct acme_conf *
parse_config(const char *filename, int opts)
{
struct sym *sym, *next;
if ((conf = calloc(1, sizeof(struct acme_conf))) == NULL)
err(EXIT_FAILURE, "%s", __func__);
conf->opts = opts;
if ((file = pushfile(filename)) == NULL) {
free(conf);
return NULL;
}
topfile = file;
TAILQ_INIT(&conf->authority_list);
TAILQ_INIT(&conf->domain_list);
yyparse();
errors = file->errors;
popfile();
TAILQ_FOREACH_SAFE(sym, &symhead, entry, next) {
if ((conf->opts & ACME_OPT_VERBOSE) && !sym->used)
fprintf(stderr, "warning: macro '%s' not "
"used\n", sym->nam);
if (!sym->persist) {
free(sym->nam);
free(sym->val);
TAILQ_REMOVE(&symhead, sym, entry);
free(sym);
}
}
if (errors != 0) {
clear_config(conf);
return NULL;
}
if (opts & ACME_OPT_CHECK) {
if (opts & ACME_OPT_VERBOSE)
print_config(conf);
exit(0);
}
return conf;
}
int
symset(const char *nam, const char *val, int persist)
{
struct sym *sym;
TAILQ_FOREACH(sym, &symhead, entry) {
if (strcmp(nam, sym->nam) == 0)
break;
}
if (sym != NULL) {
if (sym->persist == 1)
return (0);
else {
free(sym->nam);
free(sym->val);
TAILQ_REMOVE(&symhead, sym, entry);
free(sym);
}
}
if ((sym = calloc(1, sizeof(*sym))) == NULL)
return -1;
sym->nam = strdup(nam);
if (sym->nam == NULL) {
free(sym);
return -1;
}
sym->val = strdup(val);
if (sym->val == NULL) {
free(sym->nam);
free(sym);
return -1;
}
sym->used = 0;
sym->persist = persist;
TAILQ_INSERT_TAIL(&symhead, sym, entry);
return 0;
}
int
cmdline_symset(char *s)
{
char *sym, *val;
int ret;
if ((val = strrchr(s, '=')) == NULL)
return -1;
sym = strndup(s, val - s);
if (sym == NULL)
errx(EXIT_FAILURE, "%s: strndup", __func__);
ret = symset(sym, val + 1, 1);
free(sym);
return ret;
}
char *
symget(const char *nam)
{
struct sym *sym;
TAILQ_FOREACH(sym, &symhead, entry) {
if (strcmp(nam, sym->nam) == 0) {
sym->used = 1;
return sym->val;
}
}
return NULL;
}
struct authority_c *
conf_new_authority(struct acme_conf *c, char *s)
{
struct authority_c *a;
a = authority_find(c, s);
if (a != NULL)
return NULL;
if ((a = calloc(1, sizeof(struct authority_c))) == NULL)
err(EXIT_FAILURE, "%s", __func__);
TAILQ_INSERT_TAIL(&c->authority_list, a, entry);
a->name = s;
return a;
}
struct authority_c *
authority_find(struct acme_conf *c, char *s)
{
struct authority_c *a;
TAILQ_FOREACH(a, &c->authority_list, entry) {
if (strncmp(a->name, s, AUTH_MAXLEN) == 0) {
return a;
}
}
return NULL;
}
struct authority_c *
authority_find0(struct acme_conf *c)
{
return (TAILQ_FIRST(&c->authority_list));
}
struct domain_c *
conf_new_domain(struct acme_conf *c, char *s)
{
struct domain_c *d;
d = domain_find_handle(c, s);
if (d != NULL)
return (NULL);
if ((d = calloc(1, sizeof(struct domain_c))) == NULL)
err(EXIT_FAILURE, "%s", __func__);
TAILQ_INSERT_TAIL(&c->domain_list, d, entry);
d->handle = s;
TAILQ_INIT(&d->altname_list);
return d;
}
struct domain_c *
domain_find_handle(struct acme_conf *c, char *s)
{
struct domain_c *d;
TAILQ_FOREACH(d, &c->domain_list, entry) {
if (strncmp(d->handle, s, DOMAIN_MAXLEN) == 0) {
return d;
}
}
return NULL;
}
struct keyfile *
conf_new_keyfile(struct acme_conf *c, char *s)
{
struct keyfile *k;
LIST_FOREACH(k, &c->used_key_list, entry) {
if (strncmp(k->name, s, PATH_MAX) == 0) {
return NULL;
}
}
if ((k = calloc(1, sizeof(struct keyfile))) == NULL)
err(EXIT_FAILURE, "%s", __func__);
LIST_INSERT_HEAD(&c->used_key_list, k, entry);
k->name = s;
return k;
}
void
clear_config(struct acme_conf *xconf)
{
struct authority_c *a;
struct domain_c *d;
struct altname_c *ac;
while ((a = TAILQ_FIRST(&xconf->authority_list)) != NULL) {
TAILQ_REMOVE(&xconf->authority_list, a, entry);
free(a);
}
while ((d = TAILQ_FIRST(&xconf->domain_list)) != NULL) {
while ((ac = TAILQ_FIRST(&d->altname_list)) != NULL) {
TAILQ_REMOVE(&d->altname_list, ac, entry);
free(ac);
}
TAILQ_REMOVE(&xconf->domain_list, d, entry);
free(d);
}
free(xconf);
}
const char*
kt2txt(enum keytype kt)
{
switch (kt) {
case KT_RSA:
return "rsa";
case KT_ECDSA:
return "ecdsa";
default:
return "<unknown>";
}
}
void
print_config(struct acme_conf *xconf)
{
struct authority_c *a;
struct domain_c *d;
struct altname_c *ac;
int f;
TAILQ_FOREACH(a, &xconf->authority_list, entry) {
printf("authority %s {\n", a->name);
if (a->api != NULL)
printf("\tapi url \"%s\"\n", a->api);
if (a->account != NULL)
printf("\taccount key \"%s\" %s\n", a->account,
kt2txt(a->keytype));
if (a->insecure)
printf("\tinsecure\n");
printf("}\n\n");
}
TAILQ_FOREACH(d, &xconf->domain_list, entry) {
f = 0;
printf("domain %s {\n", d->handle);
if (d->domain != NULL)
printf("\tdomain name \"%s\"\n", d->domain);
TAILQ_FOREACH(ac, &d->altname_list, entry) {
if (!f)
printf("\talternative names {");
if (ac->domain != NULL) {
printf("%s%s", f ? ", " : " ", ac->domain);
f = 1;
}
}
if (f)
printf(" }\n");
if (d->key != NULL)
printf("\tdomain key \"%s\" %s\n", d->key, kt2txt(
d->keytype));
if (d->cert != NULL)
printf("\tdomain certificate \"%s\"\n", d->cert);
if (d->chain != NULL)
printf("\tdomain chain certificate \"%s\"\n", d->chain);
if (d->fullchain != NULL)
printf("\tdomain full chain certificate \"%s\"\n",
d->fullchain);
if (d->profile != NULL)
printf("\tprofile \"%s\"\n", d->profile);
if (d->auth != NULL)
printf("\tsign with \"%s\"\n", d->auth);
if (d->challengedir != NULL)
printf("\tchallengedir \"%s\"\n", d->challengedir);
printf("}\n\n");
}
}
int
domain_valid(const char *cp)
{
for ( ; *cp != '\0'; cp++)
if (!(*cp == '.' || *cp == '-' ||
*cp == '_' || isalnum((unsigned char)*cp)))
return 0;
return 1;
}
const char *
ip_valid(const char *ip)
{
static char ip_buf[NI_MAXHOST];
struct addrinfo hints, *res;
int error;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_flags = AI_NUMERICHOST;
error = getaddrinfo(ip, NULL, &hints, &res);
if (error)
return NULL;
error = getnameinfo(res->ai_addr, res->ai_addrlen, ip_buf,
sizeof(ip_buf), NULL, 0, NI_NUMERICHOST);
if (error)
return NULL;
return ip_buf;
}
int
conf_check_file(char *s)
{
struct stat st;
if (s[0] != '/') {
warnx("%s: not an absolute path", s);
return 0;
}
if (stat(s, &st)) {
if (errno == ENOENT)
return 1;
warn("cannot stat %s", s);
return 0;
}
if (st.st_mode & (S_IRWXG | S_IRWXO)) {
warnx("%s: group read/writable or world read/writable", s);
return 0;
}
return 1;
}
