| #include "asn1c_internal.h" |
| #include <asn1fix_export.h> |
| |
| #ifndef DEFFILEMODE /* Normally in <sys/stat.h> */ |
| #define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) |
| #endif |
| |
| /* |
| * Construct identifier from multiple parts. |
| * Convert unsafe characters to underscores. |
| */ |
| char * |
| asn1c_make_identifier(int unsafe_only_spaces, char *arg1, ...) { |
| static char *storage; |
| static int storage_size; |
| int nodelimiter = 0; |
| va_list ap; |
| char *str; |
| int size; |
| char *p; |
| |
| if(arg1 == NULL) |
| return NULL; |
| |
| /* |
| * Estimate the necessary storage size |
| */ |
| size = strlen(arg1); |
| va_start(ap, arg1); |
| while((str = va_arg(ap, char *))) |
| size += 1 + strlen(str); |
| va_end(ap); |
| |
| /* |
| * Make sure we have this amount of storage. |
| */ |
| if(storage_size <= size) { |
| if(storage) free(storage); |
| storage = malloc(size + 1); |
| if(storage) { |
| storage_size = size; |
| } else { |
| storage_size = 0; |
| return NULL; |
| } |
| } |
| |
| /* |
| * Fill-in the storage. |
| */ |
| va_start(ap, arg1); |
| str = arg1; |
| p = storage; |
| for(str = arg1; str; str = va_arg(ap, char *)) { |
| int subst_made = 0; |
| |
| if(str[0] == ' ' && str[1] == '\0') { |
| *p++ = ' '; |
| nodelimiter = 1; /* No delimiter */ |
| continue; |
| } |
| |
| if(str != arg1 && !nodelimiter) |
| *p++ = '_'; /* Delimiter between tokens */ |
| nodelimiter = 0; |
| |
| for(; *str; str++) { |
| if(isalnum(*str)) { |
| *p++ = *str; |
| subst_made = 0; |
| } else if(!subst_made++) { |
| if(unsafe_only_spaces && !isspace(*str)) { |
| *p ++ = *str; |
| } else { |
| *p++ = '_'; |
| } |
| } |
| } |
| } |
| va_end(ap); |
| *p = '\0'; |
| |
| assert((p - storage) <= storage_size); |
| |
| return storage; |
| } |
| |
| FILE * |
| asn1c_open_file(arg_t *arg, const char *name, const char *ext) { |
| int created = 1; |
| struct stat sb; |
| char *fname; |
| int len; |
| FILE *fp; |
| int fd; |
| |
| (void)arg; /* Unused argument */ |
| |
| /* |
| * Compute filenames. |
| */ |
| len = strlen(name) + strlen(ext) + 1; |
| fname = alloca(len); |
| snprintf(fname, len, "%s%s", name, ext); |
| |
| /* |
| * Create files. |
| */ |
| fd = open(fname, O_CREAT | O_EXCL | O_WRONLY, DEFFILEMODE); |
| if(fd == -1 && errno == EEXIST) { |
| fd = open(fname, O_WRONLY, DEFFILEMODE); |
| created = 0; |
| } |
| if(fd == -1) { |
| perror(fname); |
| return NULL; |
| } |
| |
| /* |
| * Check sanity. |
| */ |
| if(fstat(fd, &sb) || !S_ISREG(sb.st_mode)) { |
| fprintf(stderr, "%s: Not a regular file\n", fname); |
| if(created) unlink(fname); |
| close(fd); |
| return NULL; |
| } |
| |
| (void)ftruncate(fd, 0); |
| |
| /* |
| * Convert file descriptor into file pointer. |
| */ |
| fp = fdopen(fd, "w"); |
| if(fp == NULL) { |
| if(created) unlink(fname); |
| close(fd); |
| } |
| return fp; |
| } |
| |
| char * |
| asn1c_type_name(arg_t *arg, asn1p_expr_t *expr, enum tnfmt _format) { |
| char *typename; |
| |
| switch(expr->expr_type) { |
| case A1TC_REFERENCE: |
| typename = expr->reference->components[ |
| expr->reference->comp_count-1].name; |
| if(typename[0] == '&') { |
| arg_t tmp = *arg; |
| |
| /* |
| * This is a reference to a type defined in a class. |
| * Resolve it and use instead. |
| */ |
| tmp.expr = asn1f_class_access_ex(arg->asn, arg->mod, |
| arg->expr, expr->reference, &tmp.mod); |
| if(tmp.expr) return NULL; |
| |
| return asn1c_type_name(&tmp, tmp.expr, _format); |
| } else if(_format == TNF_RSAFE) { |
| /* |
| * The recursion-safe format is requested. |
| * The problem here is that only constructed types |
| * might be referenced with "struct". |
| * Change RSAFE to CTYPE if the terminal type |
| * is primitive. |
| */ |
| asn1p_expr_t *terminal; |
| terminal = asn1f_find_terminal_type_ex( |
| arg->asn, arg->mod, arg->expr, NULL); |
| if(terminal |
| && (terminal->expr_type |
| & (ASN_BASIC_MASK | ASN_STRING_MASK))) |
| _format = TNF_CTYPE; |
| } |
| break; |
| case ASN_CONSTR_SEQUENCE_OF: |
| case ASN_CONSTR_SET_OF: |
| if(expr->Identifier) { |
| typename = expr->Identifier; |
| } else { |
| asn1p_expr_t *child; |
| child = TQ_FIRST(&(expr->members)); |
| typename = asn1c_type_name(arg, child, _format); |
| if(typename) |
| return typename; |
| _format = TNF_SAFE; |
| typename = child->Identifier; |
| } |
| break; |
| case ASN_BASIC_INTEGER: |
| case ASN_BASIC_ENUMERATED: |
| if((arg->flags & A1C_USE_NATIVE_INTEGERS)) { |
| switch(_format) { |
| case TNF_CTYPE: |
| case TNF_RSAFE: |
| return "int"; |
| default: |
| if(expr->expr_type == ASN_BASIC_INTEGER) |
| return "NativeInteger"; |
| else |
| return "NativeEnumerated"; |
| } |
| } |
| /* Fall through */ |
| default: |
| if(expr->expr_type & (ASN_BASIC_MASK | ASN_STRING_MASK)) { |
| if(_format == TNF_RSAFE) |
| _format = TNF_CTYPE; |
| typename = ASN_EXPR_TYPE2STR(expr->expr_type); |
| } else { |
| _format = TNF_SAFE; |
| typename = expr->Identifier; |
| } |
| } |
| |
| switch(_format) { |
| case TNF_UNMODIFIED: |
| case TNF_INCLUDE: |
| return asn1c_make_identifier(1, typename, 0); |
| case TNF_SAFE: |
| return asn1c_make_identifier(0, typename, 0); |
| case TNF_CTYPE: |
| return asn1c_make_identifier(0, typename, "t", 0); |
| case TNF_RSAFE: |
| return asn1c_make_identifier(0, "struct", " ", typename, 0); |
| } |
| |
| assert("!unreachable"); |
| return typename; |
| } |
| |