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8235489: handle return values of sscanf calls in hotspot

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Reviewed-by: clanger, kbarrett
This commit is contained in:
Matthias Baesken 2019-12-11 09:42:52 +01:00
parent 3fe949b2f4
commit e5b0e366ea
2 changed files with 11 additions and 6 deletions
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10
src/hotspot/share/compiler/compilerOracle.cpp
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@ -380,10 +380,12 @@ static OracleCommand parse_command_name(const char * line, int* bytes_read) {
*bytes_read = 0;
char command[33];
int result = sscanf(line, "%32[a-z]%n", command, bytes_read);
for (uint i = 0; i < ARRAY_SIZE(command_names); i++) {
if (strcmp(command, command_names[i]) == 0) {
return (OracleCommand)i;
int matches = sscanf(line, "%32[a-z]%n", command, bytes_read);
if (matches > 0) {
for (uint i = 0; i < ARRAY_SIZE(command_names); i++) {
if (strcmp(command, command_names[i]) == 0) {
return (OracleCommand)i;
}
}
}
return UnknownCommand;