| #include "asn1c_internal.h" |
| #include "asn1c_compat.h" |
| #include "asn1c_fdeps.h" |
| #include "asn1c_lang.h" |
| #include "asn1c_misc.h" |
| #include "asn1c_save.h" |
| #include "asn1c_out.h" |
| |
| #ifndef HAVE_SYMLINK |
| #define symlink(a,b) (errno=ENOSYS, -1) |
| #endif |
| |
| /* Pedantically check fprintf's return value. */ |
| static int safe_fprintf(FILE *fp, const char *fmt, ...) { |
| va_list ap; |
| va_start(ap, fmt); |
| int ret = vfprintf(fp, fmt, ap); |
| va_end(ap); |
| assert(ret >= 0); |
| return ret; |
| } |
| |
| /* Pedantically check fwrite's return value. */ |
| static size_t safe_fwrite(const void *ptr, size_t size, size_t nitems, FILE *stream) { |
| size_t ret = fwrite(ptr, 1, size * nitems, stream); |
| assert(ret == size * nitems); |
| return ret; |
| } |
| |
| #define HINCLUDE(s) \ |
| ((arg->flags & A1C_INCLUDES_QUOTED) \ |
| ? safe_fprintf(fp_h, "#include \"%s\"\n", s) \ |
| : safe_fprintf(fp_h, "#include <%s>\n", s)) \ |
| |
| static int asn1c_dump_streams(arg_t *arg, asn1c_fdeps_t *, int, char **); |
| static int asn1c_print_streams(arg_t *arg); |
| static int asn1c_save_streams(arg_t *arg, asn1c_fdeps_t *, int, char **); |
| static int asn1c_copy_over(arg_t *arg, char *path); |
| static int identical_files(const char *fname1, const char *fname2); |
| static int need_to_generate_pdu_collection(arg_t *arg); |
| static int generate_pdu_collection_file(arg_t *arg); |
| static int generate_preamble(arg_t *, FILE *, int optc, char **argv); |
| static int include_type_to_pdu_collection(arg_t *arg); |
| static void pdu_collection_print_unused_types(arg_t *arg); |
| static const char *generate_pdu_C_definition(void); |
| |
| int |
| asn1c_save_compiled_output(arg_t *arg, const char *datadir, |
| int argc, int optc, char **argv) { |
| asn1c_fdeps_t *deps = 0; |
| asn1c_fdeps_t *dlist; |
| asn1p_module_t *mod; |
| FILE *mkf; /* Makefile.am.sample */ |
| int i; |
| |
| deps = asn1c_read_file_dependencies(arg, datadir); |
| if(!deps && datadir) { |
| WARNING("Cannot read file-dependencies information " |
| "from %s\n", datadir); |
| } |
| |
| TQ_FOR(mod, &(arg->asn->modules), mod_next) { |
| TQ_FOR(arg->expr, &(mod->members), next) { |
| if(asn1_lang_map[arg->expr->meta_type] |
| [arg->expr->expr_type].type_cb) { |
| if(asn1c_dump_streams(arg, deps, optc, argv)) |
| return -1; |
| } |
| } |
| } |
| |
| /* |
| * Dump out the Makefile template and the rest of the support code. |
| */ |
| if((arg->flags & A1C_PRINT_COMPILED) |
| || (arg->flags & A1C_OMIT_SUPPORT_CODE)) { |
| return 0; /* Finished */ |
| } |
| |
| mkf = asn1c_open_file("Makefile.am", ".sample", 0); |
| if(mkf == NULL) { |
| perror("Makefile.am.sample"); |
| return -1; |
| } |
| |
| safe_fprintf(mkf, "ASN_MODULE_SOURCES="); |
| TQ_FOR(mod, &(arg->asn->modules), mod_next) { |
| TQ_FOR(arg->expr, &(mod->members), next) { |
| if(asn1_lang_map[arg->expr->meta_type] |
| [arg->expr->expr_type].type_cb) { |
| safe_fprintf(mkf, "\t\\\n\t%s.c", |
| asn1c_make_identifier(AMI_MASK_ONLY_SPACES, arg->expr, 0)); |
| } |
| } |
| } |
| safe_fprintf(mkf, "\n\nASN_MODULE_HEADERS="); |
| TQ_FOR(mod, &(arg->asn->modules), mod_next) { |
| TQ_FOR(arg->expr, &(mod->members), next) { |
| if(asn1_lang_map[arg->expr->meta_type] |
| [arg->expr->expr_type].type_cb) { |
| safe_fprintf(mkf, "\t\\\n\t%s.h", |
| asn1c_make_identifier(AMI_MASK_ONLY_SPACES, arg->expr, 0)); |
| } |
| } |
| } |
| safe_fprintf(mkf, "\n\n"); |
| |
| /* |
| * Move necessary skeleton files and add them to Makefile.am.sample. |
| */ |
| dlist = asn1c_deps_makelist(deps); |
| if(dlist) { |
| char buf[8129]; |
| char *dir_end; |
| size_t dlen = strlen(datadir); |
| |
| assert(dlen < (sizeof(buf) / 2 - 2)); |
| memcpy(buf, datadir, dlen); |
| dir_end = buf + dlen; |
| *dir_end++ = '/'; |
| |
| for(i = 0; i < dlist->el_count; i++) { |
| char *what_class; /* MODULE or CONVERTER */ |
| char *what_kind; /* HEADERS or SOURCES */ |
| char *fname = dlist->elements[i]->filename; |
| char *dotH; |
| |
| assert(strlen(fname) < (sizeof(buf) / 2)); |
| strcpy(dir_end, fname); |
| |
| if(asn1c_copy_over(arg, buf) == -1) { |
| safe_fprintf(mkf, ">>>ABORTED<<<"); |
| fclose(mkf); |
| return -1; |
| } |
| |
| /* MODULE data versus CONVERTER data */ |
| switch(dlist->elements[i]->usage) { |
| case FDEP_CONVERTER: what_class = "CONVERTER"; break; |
| default: what_class= "MODULE"; break; |
| } |
| |
| /* HEADERS versus SOURCES */ |
| dotH = strrchr(fname, 'h'); |
| if(dotH && fname<dotH && dotH[-1] == '.' && !dotH[1]) |
| what_kind = "HEADERS"; |
| else |
| what_kind = "SOURCES"; |
| safe_fprintf(mkf, "ASN_%s_%s+=%s\n", |
| what_class, what_kind, fname); |
| } |
| |
| asn1c_deps_freelist(deps); |
| asn1c_deps_freelist(dlist); |
| } |
| |
| if(need_to_generate_pdu_collection(arg)) { |
| safe_fprintf(mkf, "ASN_CONVERTER_SOURCES+=pdu_collection.c\n"); |
| if(generate_pdu_collection_file(arg)) |
| return -1; |
| } |
| |
| safe_fprintf(mkf, "\n\n" |
| "lib_LTLIBRARIES=libsomething.la\n" |
| "libsomething_la_SOURCES=" |
| "$(ASN_MODULE_SOURCES) $(ASN_MODULE_HEADERS)\n" |
| "\n" |
| "# This file may be used as an input for make(3)\n" |
| "# Remove the lines below to convert it into a pure .am file\n" |
| "TARGET = progname\n" |
| "CFLAGS +=%s%s -I.\n" |
| "OBJS=${ASN_MODULE_SOURCES:.c=.o}" |
| " ${ASN_CONVERTER_SOURCES:.c=.o}\n" |
| "\nall: $(TARGET)\n" |
| "\n$(TARGET): ${OBJS}" |
| "\n\t$(CC) $(CFLAGS) -o $(TARGET) ${OBJS} $(LDFLAGS) $(LIBS)\n" |
| "\n.SUFFIXES:" |
| "\n.SUFFIXES: .c .o\n" |
| "\n.c.o:" |
| "\n\t$(CC) $(CFLAGS) -o $@ -c $<\n" |
| "\nclean:" |
| "\n\trm -f $(TARGET)" |
| "\n\trm -f $(OBJS)\n" |
| "\nregen: regenerate-from-asn1-source\n" |
| "\nregenerate-from-asn1-source:\n\t" |
| , (arg->flags & A1C_PDU_TYPE) |
| ? generate_pdu_C_definition() : "" |
| , need_to_generate_pdu_collection(arg) |
| ? " -DASN_PDU_COLLECTION" : "" |
| ); |
| |
| for(i = 0; i < argc; i++) |
| safe_fprintf(mkf, "%s%s", i ? " " : "", argv[i]); |
| safe_fprintf(mkf, "\n\n"); |
| |
| fclose(mkf); |
| safe_fprintf(stderr, "Generated Makefile.am.sample\n"); |
| |
| return 0; |
| } |
| |
| /* |
| * Dump the streams. |
| */ |
| static int |
| asn1c_dump_streams(arg_t *arg, asn1c_fdeps_t *deps, int optc, char **argv) { |
| if(arg->flags & A1C_PRINT_COMPILED) { |
| return asn1c_print_streams(arg); |
| } else { |
| return asn1c_save_streams(arg, deps, optc, argv); |
| } |
| } |
| |
| static int |
| asn1c_print_streams(arg_t *arg) { |
| compiler_streams_t *cs = arg->expr->data; |
| asn1p_expr_t *expr = arg->expr; |
| int i; |
| |
| for(i = 1; i < OT_MAX; i++) { |
| out_chunk_t *ot; |
| if(TQ_FIRST(&cs->destination[i].chunks) == NULL) |
| continue; |
| |
| printf("\n/*** <<< %s [%s] >>> ***/\n\n", |
| _compiler_stream2str[i], |
| expr->Identifier); |
| |
| TQ_FOR(ot, &(cs->destination[i].chunks), next) { |
| safe_fwrite(ot->buf, ot->len, 1, stdout); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int |
| asn1c_save_streams(arg_t *arg, asn1c_fdeps_t *deps, int optc, char **argv) { |
| asn1p_expr_t *expr = arg->expr; |
| compiler_streams_t *cs = expr->data; |
| out_chunk_t *ot; |
| FILE *fp_c, *fp_h; |
| char *tmpname_c, *tmpname_h; |
| char *name_buf; |
| char *header_id; |
| const char *c_retained = ""; |
| const char *h_retained = ""; |
| char *filename; |
| |
| if(cs == NULL) { |
| safe_fprintf(stderr, "Cannot compile %s at line %d\n", |
| expr->Identifier, expr->_lineno); |
| return -1; |
| } |
| |
| filename = strdup(asn1c_make_identifier(AMI_MASK_ONLY_SPACES, expr, (char*)0)); |
| fp_c = asn1c_open_file(filename, ".c", &tmpname_c); |
| fp_h = asn1c_open_file(filename, ".h", &tmpname_h); |
| if(fp_c == NULL || fp_h == NULL) { |
| if(fp_c) { unlink(tmpname_c); free(tmpname_c); fclose(fp_c); } |
| if(fp_h) { unlink(tmpname_h); free(tmpname_h); fclose(fp_h); } |
| return -1; |
| } |
| |
| generate_preamble(arg, fp_c, optc, argv); |
| generate_preamble(arg, fp_h, optc, argv); |
| |
| header_id = asn1c_make_identifier(0, expr, NULL); |
| safe_fprintf(fp_h, |
| "#ifndef\t_%s_H_\n" |
| "#define\t_%s_H_\n" |
| "\n", header_id, header_id); |
| |
| safe_fprintf(fp_h, "\n"); |
| HINCLUDE("asn_application.h"); |
| |
| #define SAVE_STREAM(fp, idx, msg, actdep) do { \ |
| if(TQ_FIRST(&(cs->destination[idx].chunks)) && *msg) \ |
| safe_fprintf(fp, "\n/* %s */\n", msg); \ |
| TQ_FOR(ot, &(cs->destination[idx].chunks), next) { \ |
| if(actdep) asn1c_activate_dependency(deps, 0, ot->buf); \ |
| safe_fwrite(ot->buf, ot->len, 1, fp); \ |
| } \ |
| } while(0) |
| |
| SAVE_STREAM(fp_h, OT_INCLUDES, "Including external dependencies", 1); |
| |
| safe_fprintf(fp_h, "\n#ifdef __cplusplus\nextern \"C\" {\n#endif\n"); |
| SAVE_STREAM(fp_h, OT_DEPS, "Dependencies", 0); |
| SAVE_STREAM(fp_h, OT_FWD_DECLS, "Forward declarations", 0); |
| SAVE_STREAM(fp_h, OT_FWD_DEFS, "Forward definitions", 0); |
| SAVE_STREAM(fp_h, OT_TYPE_DECLS, expr->Identifier, 0); |
| SAVE_STREAM(fp_h, OT_FUNC_DECLS,"Implementation", 0); |
| safe_fprintf(fp_h, "\n#ifdef __cplusplus\n}\n#endif\n"); |
| |
| if(!(arg->flags & A1C_NO_INCLUDE_DEPS)) |
| SAVE_STREAM(fp_h, OT_POST_INCLUDE, "Referred external types", 1); |
| |
| safe_fprintf(fp_h, "\n#endif\t/* _%s_H_ */\n", header_id); |
| |
| HINCLUDE("asn_internal.h"); |
| safe_fprintf(fp_c, "#include \"%s.h\"\n\n", filename); |
| if(arg->flags & A1C_NO_INCLUDE_DEPS) |
| SAVE_STREAM(fp_c, OT_POST_INCLUDE, "", 1); |
| TQ_FOR(ot, &(cs->destination[OT_CTABLES].chunks), next) |
| safe_fwrite(ot->buf, ot->len, 1, fp_c); |
| TQ_FOR(ot, &(cs->destination[OT_CODE].chunks), next) |
| safe_fwrite(ot->buf, ot->len, 1, fp_c); |
| TQ_FOR(ot, &(cs->destination[OT_CTDEFS].chunks), next) |
| safe_fwrite(ot->buf, ot->len, 1, fp_c); |
| TQ_FOR(ot, &(cs->destination[OT_STAT_DEFS].chunks), next) |
| safe_fwrite(ot->buf, ot->len, 1, fp_c); |
| |
| assert(OT_MAX == 12); /* Protection from reckless changes */ |
| |
| fclose(fp_c); |
| fclose(fp_h); |
| |
| name_buf = alloca(strlen(filename) + 3); |
| |
| sprintf(name_buf, "%s.c", filename); |
| if(identical_files(name_buf, tmpname_c)) { |
| c_retained = " (contents unchanged)"; |
| unlink(tmpname_c); |
| } else { |
| if(rename(tmpname_c, name_buf)) { |
| unlink(tmpname_c); |
| perror(tmpname_c); |
| free(tmpname_c); |
| free(tmpname_h); |
| return -1; |
| } |
| } |
| |
| sprintf(name_buf, "%s.h", filename); |
| if(identical_files(name_buf, tmpname_h)) { |
| h_retained = " (contents unchanged)"; |
| unlink(tmpname_h); |
| } else { |
| if(rename(tmpname_h, name_buf)) { |
| unlink(tmpname_h); |
| perror(tmpname_h); |
| free(tmpname_c); |
| free(tmpname_h); |
| return -1; |
| } |
| } |
| |
| free(tmpname_c); |
| free(tmpname_h); |
| |
| safe_fprintf(stderr, "Compiled %s.c%s\n", |
| filename, c_retained); |
| safe_fprintf(stderr, "Compiled %s.h%s\n", |
| filename, h_retained); |
| free(filename); |
| return 0; |
| } |
| |
| static int |
| generate_preamble(arg_t *arg, FILE *fp, int optc, char **argv) { |
| safe_fprintf(fp, |
| "/*\n" |
| " * Generated by asn1c-" VERSION " (http://lionet.info/asn1c)\n" |
| " * From ASN.1 module \"%s\"\n" |
| " * \tfound in \"%s\"\n", |
| arg->expr->module->ModuleName, |
| arg->expr->module->source_file_name); |
| if(optc > 1) { |
| int i; |
| safe_fprintf(fp, " * \t`asn1c "); |
| for(i = 1; i < optc; i++) |
| safe_fprintf(fp, "%s%s", i>1?" ":"", argv[i]); |
| safe_fprintf(fp, "`\n"); |
| } |
| safe_fprintf(fp, " */\n\n"); |
| return 0; |
| } |
| |
| static int |
| identical_files(const char *fname1, const char *fname2) { |
| char buf[2][4096]; |
| FILE *fp1, *fp2; |
| size_t olen, nlen; |
| int retval = 1; /* Files are identical */ |
| |
| #ifndef _WIN32 |
| struct stat sb; |
| |
| if(lstat(fname1, &sb) || !S_ISREG(sb.st_mode) |
| || lstat(fname2, &sb) || !S_ISREG(sb.st_mode)) { |
| return 0; /* Files are not identical */ |
| } |
| #endif |
| |
| fp1 = fopen(fname1, "r"); |
| if(!fp1) { return 0; } |
| fp2 = fopen(fname2, "r"); |
| if(!fp2) { fclose(fp1); return 0; } |
| |
| while((olen = fread(buf[0], 1, sizeof(buf[0]), fp1))) { |
| nlen = fread(buf[1], 1, olen, fp2); |
| if(nlen != olen || memcmp(buf[0], buf[1], nlen)) { |
| retval = 0; |
| break; |
| } |
| } |
| nlen = fread(buf[1], 1, 1, fp2); |
| if(nlen) retval = 0; |
| |
| fclose(fp1); |
| fclose(fp2); |
| return retval; |
| } |
| |
| /* |
| * Copy file for real. |
| */ |
| static int |
| real_copy(const char *src, const char *dst) { |
| unsigned char buf[4096]; |
| char *tmpname; |
| FILE *fpsrc, *fpdst; |
| size_t len; |
| int retval = 0; |
| |
| if(identical_files(src, dst)) |
| return retval; /* Success, no need to copy for real. */ |
| |
| fpsrc = fopen(src, "r"); |
| if(!fpsrc) { errno = EIO; return -1; } |
| fpdst = asn1c_open_file(dst, "", &tmpname); |
| if(!fpdst) { fclose(fpsrc); errno = EIO; return -1; } |
| |
| while(!feof(fpsrc)) { |
| len = fread(buf, 1, sizeof(buf), fpsrc); |
| if(safe_fwrite(buf, 1, len, fpdst) != len) { |
| perror(tmpname); |
| errno = EIO; |
| retval = -1; |
| break; |
| } |
| } |
| fclose(fpsrc); |
| fclose(fpdst); |
| |
| /* Check if copied correctly, and rename into a permanent name */ |
| if(retval) { |
| unlink(tmpname); |
| } else if(rename(tmpname, dst)) { |
| unlink(tmpname); |
| perror(tmpname); |
| retval = -1; |
| } |
| free(tmpname); |
| return retval; |
| } |
| |
| static int |
| asn1c_copy_over(arg_t *arg, char *path) { |
| char *fname; |
| #ifdef _WIN32 |
| int use_real_copy = 1; |
| #else |
| int use_real_copy = !(arg->flags & A1C_LINK_SKELETONS); |
| #endif |
| |
| fname = a1c_basename(path); |
| if(!fname |
| || (use_real_copy ? real_copy(path, fname) : symlink(path, fname)) |
| ) { |
| if(errno == EEXIST) { |
| struct stat sb1, sb2; |
| if(stat(path, &sb1) == 0 |
| && stat(fname, &sb2) == 0 |
| && sb1.st_dev == sb2.st_dev |
| && sb1.st_ino == sb2.st_ino) { |
| /* |
| * Nothing to do. |
| */ |
| safe_fprintf(stderr, |
| "File %s is already here as %s\n", |
| path, fname); |
| return 1; |
| } else { |
| safe_fprintf(stderr, |
| "Retaining local %s (%s suggested)\n", |
| fname, path); |
| return 1; |
| } |
| } else if(errno == ENOENT) { |
| /* Ignore this */ |
| return 0; |
| } else { |
| safe_fprintf(stderr, "%s %s -> %s failed: %s\n", |
| use_real_copy ? "Copy" : "Symlink", |
| path, fname, strerror(errno)); |
| return -1; |
| } |
| } |
| |
| safe_fprintf(stderr, "%s %s\t-> %s\n", |
| use_real_copy ? "Copied" : "Symlinked", path, fname); |
| |
| return 1; |
| } |
| |
| |
| static int |
| generate_pdu_collection_file(arg_t *arg) { |
| asn1p_module_t *mod; |
| FILE *fp; |
| |
| fp = asn1c_open_file("pdu_collection", ".c", 0); |
| if(fp == NULL) { |
| perror("pdu_collection.c"); |
| return -1; |
| } |
| |
| safe_fprintf(fp, |
| "/*\n" |
| " * Generated by asn1c-" VERSION " (http://lionet.info/asn1c)\n" |
| " */\n\n"); |
| safe_fprintf(fp, "struct asn_TYPE_descriptor_s;\t" |
| "/* Forward declaration */\n\n"); |
| |
| TQ_FOR(mod, &(arg->asn->modules), mod_next) { |
| TQ_FOR(arg->expr, &(mod->members), next) { |
| if(!include_type_to_pdu_collection(arg)) |
| continue; |
| safe_fprintf(fp, "extern struct asn_TYPE_descriptor_s " |
| "asn_DEF_%s;\n", |
| asn1c_make_identifier(0, arg->expr, NULL)); |
| } |
| } |
| |
| safe_fprintf(fp, "\n\n"); |
| safe_fprintf(fp, "struct asn_TYPE_descriptor_s *asn_pdu_collection[] = {\n"); |
| TQ_FOR(mod, &(arg->asn->modules), mod_next) { |
| int mod_printed = 0; |
| TQ_FOR(arg->expr, &(mod->members), next) { |
| if(!include_type_to_pdu_collection(arg)) |
| continue; |
| if(!mod_printed++) |
| safe_fprintf(fp, "\t/* From module %s in %s */\n", |
| arg->expr->module->ModuleName, |
| arg->expr->module->source_file_name); |
| safe_fprintf(fp, "\t&asn_DEF_%s,\t\n", |
| asn1c_make_identifier(0, arg->expr, NULL)); |
| } |
| } |
| |
| safe_fprintf(fp, "\t0\n};\n\n"); |
| |
| pdu_collection_print_unused_types(arg); |
| |
| fclose(fp); |
| safe_fprintf(stderr, "Generated pdu_collection.c\n"); |
| |
| return 0; |
| } |
| |
| static struct PDUType { |
| char *typename; |
| int used; |
| } *pduType; |
| static int pduTypes; |
| |
| static const char * |
| generate_pdu_C_definition(void) { |
| const char *src; |
| char *def; |
| char *dst; |
| if(pduTypes == 0) return ""; |
| def = malloc(strlen(pduType[0].typename) + 20); |
| assert(def); |
| strcpy(def, " -DPDU="); |
| for(src = pduType[0].typename, dst = def + 7; *src; src++, dst++) |
| if((*dst = *src) == '-') |
| *dst = '_'; |
| *dst = 0; |
| return def; |
| } |
| |
| void |
| asn1c__add_pdu_type(const char *ctypename) { |
| char *typename = strdup(ctypename); |
| assert(typename && *typename); |
| |
| pduType = realloc(pduType, sizeof(pduType[0]) * (pduTypes + 1)); |
| assert(pduType); |
| pduType[pduTypes].used = 0; |
| pduType[pduTypes].typename = typename; |
| pduTypes++; |
| } |
| |
| static int |
| asn1c__pdu_type_lookup(const char *typename) { |
| int i; |
| for(i = 0; i < pduTypes; i++) { |
| struct PDUType *pt = &pduType[i]; |
| if(strcmp(pt->typename, typename) == 0) { |
| pt->used++; |
| return 1; |
| } |
| } |
| return 0; |
| } |
| |
| static int |
| need_to_generate_pdu_collection(arg_t *arg) { |
| if(arg->flags & (A1C_PDU_ALL|A1C_PDU_AUTO)) |
| return 1; |
| if(arg->flags & A1C_PDU_TYPE) |
| return (pduTypes > 1) ? 1 : 0; |
| return 0; |
| } |
| |
| static void |
| pdu_collection_print_unused_types(arg_t *arg) { |
| int i; |
| for(i = 0; i < pduTypes; i++) { |
| struct PDUType *pt = &pduType[i]; |
| if(!pt->used) { |
| WARNING("Missing type specified in -pdu=%s", |
| pt->typename); |
| } |
| } |
| } |
| |
| static int |
| include_type_to_pdu_collection(arg_t *arg) { |
| if(!asn1_lang_map[arg->expr->meta_type] |
| [arg->expr->expr_type].type_cb) |
| return 0; |
| |
| if((arg->flags & A1C_PDU_ALL) |
| || ((arg->flags & A1C_PDU_AUTO) && !arg->expr->_type_referenced) |
| || asn1c__pdu_type_lookup(arg->expr->Identifier)) { |
| return 1; |
| } |
| |
| return 0; |
| } |