void
asn1p_delete(asn1p_t *asn) {
if(asn) {
asn1p_module_t *mod;
while((mod = TQ_REMOVE(&(asn->modules), mod_next)))
asn1p_module_free(mod);
free(asn);
}
}
/*
* Destroy the xports structure.
*/
void
asn1p_xports_free(asn1p_xports_t *xp) {
if(xp) {
asn1p_expr_t *expr;
free(xp->fromModuleName);
asn1p_oid_free(xp->identifier.oid);
while((expr = TQ_REMOVE(&(xp->xp_members), next)))
asn1p_expr_free(expr);
free(xp);
}
}
/*
* Destroy the module.
*/
void
asn1p_module_free(asn1p_module_t *mod) {
if(mod) {
asn1p_expr_t *expr;
asn1p_xports_t *xports;
free(mod->ModuleName);
free(mod->source_file_name);
asn1p_oid_free(mod->module_oid);
while((xports = TQ_REMOVE(&(mod->exports), xp_next)))
asn1p_xports_free(xports);
while((xports = TQ_REMOVE(&(mod->imports), xp_next)))
asn1p_xports_free(xports);
while((expr = TQ_REMOVE(&(mod->members), next)))
asn1p_expr_free(expr);
free(mod);
}
}
int
main(int ac, char **av) {
enum asn1p_flags asn1_parser_flags = A1P_NOFLAGS;
enum asn1f_flags asn1_fixer_flags = A1F_NOFLAGS;
enum asn1c_flags asn1_compiler_flags= A1C_NO_C99;
enum asn1print_flags asn1_printer_flags = APF_NOFLAGS;
int print_arg__print_out = 0; /* Don't compile, just print parsed */
int print_arg__fix_n_print = 0; /* Fix and print */
int warnings_as_errors = 0; /* Treat warnings as errors */
char *skeletons_dir = NULL; /* Directory with supplementary stuff */
asn1p_t *asn = 0; /* An ASN.1 parsed tree */
int ret; /* Return value from misc functions */
int ch; /* Command line character */
int i; /* Index in some loops */
/*
* Process command-line options.
*/
while((ch = getopt(ac, av, "EFf:g:hLPp:RS:vW:X")) != -1)
switch(ch) {
case 'E':
print_arg__print_out = 1;
break;
case 'F':
print_arg__fix_n_print = 1;
break;
case 'f':
if(strcmp(optarg, "all-defs-global") == 0) {
asn1_compiler_flags |= A1C_ALL_DEFS_GLOBAL;
} else if(strcmp(optarg, "bless-SIZE") == 0) {
asn1_fixer_flags |= A1F_EXTENDED_SizeConstraint;
} else if(strcmp(optarg, "compound-names") == 0) {
asn1_compiler_flags |= A1C_COMPOUND_NAMES;
} else if(strcmp(optarg, "indirect-choice") == 0) {
asn1_compiler_flags |= A1C_INDIRECT_CHOICE;
} else if(strncmp(optarg, "known-extern-type=", 18) == 0) {
char *known_type = optarg + 18;
ret = asn1f_make_known_external_type(known_type);
assert(ret == 0 || errno == EEXIST);
} else if(strcmp(optarg, "native-types") == 0) {
fprintf(stderr, "-f%s: Deprecated option\n", optarg);
asn1_compiler_flags &= ~A1C_USE_WIDE_TYPES;
} else if(strcmp(optarg, "wide-types") == 0) {
asn1_compiler_flags |= A1C_USE_WIDE_TYPES;
} else if(strcmp(optarg, "line-refs") == 0) {
asn1_compiler_flags |= A1C_LINE_REFS;
} else if(strcmp(optarg, "no-constraints") == 0) {
asn1_compiler_flags |= A1C_NO_CONSTRAINTS;
} else if(strcmp(optarg, "no-include-deps") == 0) {
asn1_compiler_flags |= A1C_NO_INCLUDE_DEPS;
} else if(strcmp(optarg, "includes-quoted") == 0) {
asn1_compiler_flags |= A1C_INCLUDES_QUOTED;
} else if(strcmp(optarg, "unnamed-unions") == 0) {
asn1_compiler_flags |= A1C_UNNAMED_UNIONS;
} else if(strcmp(optarg, "skeletons-copy") == 0) {
fprintf(stderr, "-f%s: Deprecated option\n", optarg);
asn1_compiler_flags &= ~A1C_LINK_SKELETONS;
} else if(strcmp(optarg, "link-skeletons") == 0) {
asn1_compiler_flags |= A1C_LINK_SKELETONS;
} else {
fprintf(stderr, "-f%s: Invalid argument\n", optarg);
exit(EX_USAGE);
}
break;
case 'g':
if(strcmp(optarg, "en-PER") == 0) {
asn1_compiler_flags |= A1C_GEN_PER;
} else {
fprintf(stderr, "-g%s: Invalid argument\n", optarg);
exit(EX_USAGE);
}
break;
case 'h':
usage(av[0]);
case 'P':
asn1_compiler_flags |= A1C_PRINT_COMPILED;
asn1_compiler_flags &= ~A1C_NO_C99;
break;
case 'p':
if(strncmp(optarg, "du=", 3) == 0) {
char *pduname = optarg + 3;
if(strcmp(pduname, "all") == 0) {
asn1_compiler_flags |= A1C_PDU_ALL;
} else if(strcmp(pduname, "auto") == 0) {
asn1_compiler_flags |= A1C_PDU_AUTO;
} else if(pduname[0] >= 'A' && pduname[0] <= 'Z') {
asn1c__add_pdu_type(pduname);
asn1_compiler_flags |= A1C_PDU_TYPE;
} else {
fprintf(stderr, "-pdu=%s"
": expected -pdu={all|auto|Type}\n",
pduname);
exit(EX_USAGE);
}
} else if(strcmp(optarg, "rint-class-matrix") == 0) {
asn1_printer_flags |= APF_PRINT_CLASS_MATRIX;
} else if(strcmp(optarg, "rint-constraints") == 0) {
asn1_printer_flags |= APF_PRINT_CONSTRAINTS;
} else if(strcmp(optarg, "rint-lines") == 0) {
asn1_printer_flags |= APF_LINE_COMMENTS;
} else {
fprintf(stderr, "-p%s: Invalid argument\n", optarg);
exit(EX_USAGE);
}
break;
case 'R':
asn1_compiler_flags |= A1C_OMIT_SUPPORT_CODE;
break;
case 'S':
skeletons_dir = optarg;
break;
case 'v':
fprintf(stderr, "ASN.1 Compiler, v" VERSION "\n" COPYRIGHT);
exit(0);
break;
case 'W':
if(strcmp(optarg, "error") == 0) {
warnings_as_errors = 1;
break;
} else if(strcmp(optarg, "debug-lexer") == 0) {
asn1_parser_flags |= A1P_LEXER_DEBUG;
break;
} else if(strcmp(optarg, "debug-fixer") == 0) {
asn1_fixer_flags |= A1F_DEBUG;
break;
} else if(strcmp(optarg, "debug-compiler") == 0) {
asn1_compiler_flags |= A1C_DEBUG;
break;
} else {
fprintf(stderr, "-W%s: Invalid argument\n", optarg);
exit(EX_USAGE);
}
break;
case 'X':
print_arg__print_out = 1; /* Implicit -E */
print_arg__fix_n_print = 1; /* Implicit -F */
asn1_printer_flags |= APF_PRINT_XML_DTD;
break;
default:
usage(av[0]);
}
/*
* Validate the options combination.
*/
if(!print_arg__print_out) {
if(print_arg__fix_n_print) {
fprintf(stderr, "Error: -F requires -E\n");
exit(EX_USAGE);
}
if(asn1_printer_flags) {
fprintf(stderr, "Error: "
"-print-... arguments require -E\n");
exit(EX_USAGE);
}
}
/*
* Ensure that there are some input files present.
*/
if(ac > optind) {
ac -= optind;
av += optind;
} else {
char *bin_name = a1c_basename(av[0]);
fprintf(stderr, "%s: No input files specified. "
"Try '%s -h' for more information\n",
bin_name, bin_name);
exit(1);
}
/*
* Make sure the skeleton directory is out there.
*/
if(skeletons_dir == NULL) {
struct stat sb;
skeletons_dir = DATADIR;
if((av[-optind][0] == '.' || av[-optind][1] == '/')
&& stat(skeletons_dir, &sb)) {
/*
* The default skeletons directory does not exist,
* compute it from my file name:
* ./asn1c/asn1c -> ./skeletons
*/
char *p;
size_t len;
p = a1c_dirname(av[-optind]);
len = strlen(p) + sizeof("/../skeletons");
skeletons_dir = malloc(len);
assert(skeletons_dir);
snprintf(skeletons_dir, len, "%s/../skeletons", p);
if(stat(skeletons_dir, &sb)) {
fprintf(stderr,
"WARNING: skeletons are neither in "
"\"%s\" nor in \"%s\"!\n",
DATADIR, skeletons_dir);
if(warnings_as_errors)
exit(EX_OSFILE);
}
}
}
/*
* Iterate over input files and parse each.
* All syntax trees from all files will be bundled together.
*/
for(i = 0; i < ac; i++) {
asn1p_t *new_asn;
new_asn = asn1p_parse_file(av[i], asn1_parser_flags);
if(new_asn == NULL) {
fprintf(stderr, "Cannot parse \"%s\"\n", av[i]);
exit(EX_DATAERR);
}
/*
* Bundle the parsed tree with existing one.
*/
if(asn) {
asn1p_module_t *mod;
while((mod = TQ_REMOVE(&(new_asn->modules), mod_next)))
TQ_ADD(&(asn->modules), mod, mod_next);
asn1p_delete(new_asn);
} else {
asn = new_asn;
}
}
/* These are mostly notes for the human readers */
assert(asn);
assert(skeletons_dir);
/*
* Dump the parsed ASN.1 tree if -E specified and -F is NOT given.
*/
if(print_arg__print_out && !print_arg__fix_n_print) {
if(asn1print(asn, asn1_printer_flags))
exit(EX_SOFTWARE);
return 0;
}
/*
* Read in the files from skeletons/standard-modules
*/
if(importStandardModules(asn, skeletons_dir)) {
if(warnings_as_errors)
exit(EX_DATAERR);
}
/*
* Process the ASN.1 specification: perform semantic checks,
* expand references, etc, etc.
* This function will emit necessary warnings and error messages.
*/
ret = asn1f_process(asn, asn1_fixer_flags,
NULL /* default fprintf(stderr) */);
switch(ret) {
case 1:
if(!warnings_as_errors)
/* Fall through */
case 0:
break; /* All clear */
case -1:
exit(EX_DATAERR); /* Fatal failure */
}
/*
* Dump the parsed ASN.1 tree if -E specified and -F is given.
*/
if(print_arg__print_out && print_arg__fix_n_print) {
if(asn1print(asn, asn1_printer_flags))
exit(EX_SOFTWARE);
return 0;
}
/*
* Compile the ASN.1 tree into a set of source files
* of another language.
*/
if(asn1_compile(asn, skeletons_dir, asn1_compiler_flags,
ac + optind, optind - 1, av - optind)) {
exit(EX_SOFTWARE);
}
return 0;
}
/*
* Parse and import *.asn1 from skeletons/standard-modules
*/
static int
importStandardModules(asn1p_t *asn, const char *skeletons_dir) {
asn1p_t *new_asn;
asn1p_module_t *mod;
const char *filename;
char *fullname;
char *target_dir;
int target_dir_len;
int len;
#ifdef _WIN32
intptr_t dir;
struct _finddata_t c_file;
char *pattern;
#else
struct dirent *dp;
DIR *dir;
#endif
int ret = 0;
/* Notes for the human reader */
assert(asn);
assert(skeletons_dir);
/*
* Figure out the standard-modules directory.
*/
target_dir_len = strlen(skeletons_dir)
+ sizeof("/standard-modules") - 1;
target_dir = malloc(target_dir_len + 1);
assert(target_dir);
snprintf(target_dir, target_dir_len + 1, "%s/standard-modules",
skeletons_dir);
#ifdef _WIN32
len = target_dir_len + sizeof("/*.asn1");
pattern = malloc(len);
assert(pattern);
snprintf(pattern, len, "%s/*.asn1", target_dir);
dir = _findfirst(pattern, &c_file);
if(dir == -1L) {
#else
dir = opendir(target_dir);
if(!dir) {
#endif
fprintf(stderr,
"WARNING: Cannot find standard modules in %s\n",
target_dir);
return -1;
}
#ifdef _WIN32
do {
filename = c_file.name;
#else
while((dp = readdir(dir))) {
filename = dp->d_name;
#endif
len = strlen(filename);
if(len <= 5 || strcmp(filename + len - 5, ".asn1"))
continue;
len = target_dir_len + 1 + len + 1;
fullname = malloc(len);
if(!fullname) continue; /* Just skip it, no big deal */
snprintf(fullname, len, "%s/%s", target_dir, filename);
filename = fullname;
new_asn = asn1p_parse_file(filename, A1P_NOFLAGS);
if(new_asn == NULL) {
fprintf(stderr, "WARNING: Cannot parse standard module \"%s\"\n", filename);
ret = -1;
continue;
}
/* Import these modules and mark them as "standard" */
while((mod = TQ_REMOVE(&(new_asn->modules), mod_next))) {
mod->_tags |= MT_STANDARD_MODULE;
TQ_ADD(&(asn->modules), mod, mod_next);
}
asn1p_delete(new_asn);
#ifdef _WIN32
} while(_findnext(dir, &c_file) == 0);
_findclose(dir);
#else
free(fullname);
} /* while(readdir()) */
closedir(dir);
#endif
return ret;
}
