3350 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p,
3351 scp_assembly_required_p);
3352 }
3353
3354 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) {
3355 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p,
3356 scp_assembly_required_p);
3357 }
3358
3359 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) {
3360 const int N_MAX_OPTIONS = 64;
3361 const int OPTION_BUFFER_SIZE = 1024;
3362 char buffer[OPTION_BUFFER_SIZE];
3363
3364 // The variable will be ignored if it exceeds the length of the buffer.
3365 // Don't check this variable if user has special privileges
3366 // (e.g. unix su command).
3367 if (os::getenv(name, buffer, sizeof(buffer)) &&
3368 !os::have_special_privileges()) {
3369 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array
3370 jio_fprintf(defaultStream::error_stream(),
3371 "Picked up %s: %s\n", name, buffer);
3372 char* rd = buffer; // pointer to the input string (rd)
3373 int i;
3374 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string
3375 while (isspace(*rd)) rd++; // skip whitespace
3376 if (*rd == 0) break; // we re done when the input string is read completely
3377
3378 // The output, option string, overwrites the input string.
3379 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to
3380 // input string (rd).
3381 char* wrt = rd;
3382
3383 options[i++].optionString = wrt; // Fill in option
3384 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL
3385 if (*rd == '\'' || *rd == '"') { // handle a quoted string
3386 int quote = *rd; // matching quote to look for
3387 rd++; // don't copy open quote
3388 while (*rd != quote) { // include everything (even spaces) up until quote
3389 if (*rd == 0) { // string termination means unmatched string
3390 jio_fprintf(defaultStream::error_stream(),
3391 "Unmatched quote in %s\n", name);
3392 return JNI_ERR;
3393 }
3394 *wrt++ = *rd++; // copy to option string
3395 }
3396 rd++; // don't copy close quote
3397 } else {
3398 *wrt++ = *rd++; // copy to option string
3399 }
3400 }
3401 // Need to check if we're done before writing a NULL,
3402 // because the write could be to the byte that rd is pointing to.
3403 if (*rd++ == 0) {
3404 *wrt = 0;
3405 break;
3406 }
3407 *wrt = 0; // Zero terminate option
3408 }
3409 // Construct JavaVMInitArgs structure and parse as if it was part of the command line
3410 JavaVMInitArgs vm_args;
3411 vm_args.version = JNI_VERSION_1_2;
3412 vm_args.options = options;
3413 vm_args.nOptions = i;
3414 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions;
3415
3416 if (PrintVMOptions) {
3417 const char* tail;
3418 for (int i = 0; i < vm_args.nOptions; i++) {
3419 const JavaVMOption *option = vm_args.options + i;
3420 if (match_option(option, "-XX:", &tail)) {
3421 logOption(tail);
3422 }
3423 }
3424 }
3425
3426 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, Flag::ENVIRON_VAR));
3427 }
|
3350 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p,
3351 scp_assembly_required_p);
3352 }
3353
3354 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) {
3355 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p,
3356 scp_assembly_required_p);
3357 }
3358
3359 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) {
3360 const int N_MAX_OPTIONS = 64;
3361 const int OPTION_BUFFER_SIZE = 1024;
3362 char buffer[OPTION_BUFFER_SIZE];
3363
3364 // The variable will be ignored if it exceeds the length of the buffer.
3365 // Don't check this variable if user has special privileges
3366 // (e.g. unix su command).
3367 if (os::getenv(name, buffer, sizeof(buffer)) &&
3368 !os::have_special_privileges()) {
3369 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array
3370
3371 bool suppress_message = false; // the message will be printed unless requested not to
3372 char message[OPTION_BUFFER_SIZE + 256]; // enough space for the options, message and the variable name
3373 jio_snprintf(message, sizeof(message), // message with the unmodidied yet buffer
3374 "Picked up %s: %s\n",
3375 name, buffer);
3376
3377 char* rd = buffer; // pointer to the input string (rd)
3378 int i;
3379 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string
3380 while (isspace(*rd)) rd++; // skip whitespace
3381 if (*rd == 0) break; // we re done when the input string is read completely
3382
3383 // The output, option string, overwrites the input string.
3384 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to
3385 // input string (rd).
3386 char* wrt = rd;
3387
3388 options[i].optionString = wrt; // Fill in option
3389
3390 // Check if we're requested to suppress the message about picking up options
3391 const char* tail;
3392 if (match_option(&options[i], "-XX:+SuppressJavaOptsOutput", &tail) &&
3393 (*tail == 0 || isspace(*tail))) {
3394 suppress_message = true;
3395 // remove the -XX:+SuppressJavaOptsOutput option from further processing
3396 rd += tail - rd;
3397 continue;
3398 }
3399
3400 i++;
3401 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL
3402 if (*rd == '\'' || *rd == '"') { // handle a quoted string
3403 int quote = *rd; // matching quote to look for
3404 rd++; // don't copy open quote
3405 while (*rd != quote) { // include everything (even spaces) up until quote
3406 if (*rd == 0) { // string termination means unmatched string
3407 jio_fprintf(defaultStream::error_stream(),
3408 "%sUnmatched quote in %s\n",
3409 suppress_message ? "" : message, name);
3410 return JNI_ERR;
3411 }
3412 *wrt++ = *rd++; // copy to option string
3413 }
3414 rd++; // don't copy close quote
3415 } else {
3416 *wrt++ = *rd++; // copy to option string
3417 }
3418 }
3419 // Need to check if we're done before writing a NULL,
3420 // because the write could be to the byte that rd is pointing to.
3421 if (*rd++ == 0) {
3422 *wrt = 0;
3423 break;
3424 }
3425 *wrt = 0; // Zero terminate option
3426 }
3427 if (!suppress_message) {
3428 jio_fprintf(defaultStream::error_stream(), "%s", message);
3429 }
3430 // Construct JavaVMInitArgs structure and parse as if it was part of the command line
3431 JavaVMInitArgs vm_args;
3432 vm_args.version = JNI_VERSION_1_2;
3433 vm_args.options = options;
3434 vm_args.nOptions = i;
3435 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions;
3436
3437 if (PrintVMOptions) {
3438 const char* tail;
3439 for (int i = 0; i < vm_args.nOptions; i++) {
3440 const JavaVMOption *option = vm_args.options + i;
3441 if (match_option(option, "-XX:", &tail)) {
3442 logOption(tail);
3443 }
3444 }
3445 }
3446
3447 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, Flag::ENVIRON_VAR));
3448 }
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