// describe Scalpel error conditions. Some errors are fatal, while
// others are advisory.
void handleError(struct scalpelState *state, int error) {
switch(error) {
case SCALPEL_ERROR_FILE_OPEN:
// non-fatal
scalpelLog(state,"Scalpel was unable to open the image file: %s\n"
"Skipping...\n\n",
state->imagefile);
break;
case SCALPEL_ERROR_FILE_READ:
// non-fatal
scalpelLog(state,"Scalpel was unable to read the image file: %s\n"
"Skipping...\n\n",
state->imagefile);
break;
case SCALPEL_ERROR_FATAL_READ:
// fatal
scalpelLog(state,"Scalpel was unable to read a needed file and will abort.\n");
closeFile(state->auditFile);
exit (-1);
break;
case SCALPEL_ERROR_FILE_WRITE:
// fatal--unable to write files, which may mean that disk space is exhausted.
fprintf(stderr,
"Scalpel was unable to write output files and will abort.\n");
fprintf(stderr,
"This error generally indicates that disk space is exhausted.\n");
closeFile(state->auditFile);
exit (-1);
case SCALPEL_ERROR_NO_SEARCH_SPEC:
// fatal, configuration file didn't specify anything to carve
scalpelLog(state,
"ERROR: The configuration file didn't specify any file types to carve.\n");
scalpelLog(state, "(If you're using the default configuration file, you'll have to\n");
scalpelLog(state, "uncomment some of the file types.)\n");
closeFile(state->auditFile);
exit (-1);
case SCALPEL_GENERAL_ABORT:
// fatal
scalpelLog(state,"Scalpel will abort.\n");
closeFile(state->auditFile);
exit (-1);
break;
default:
// fatal
scalpelLog(state,
"Scalpel has encountered an error it doesn't know"
"how to handle.\nError code: %d\n", error);
closeFile(state->auditFile);
exit (-1);
}
}
// describe Scalpel error conditions. Some errors are fatal, while
// others are advisory.
void handleError(struct scalpelState *state, int error)
{
const char * inputId = NULL;
std::string msg;
if (state->inReader) {
inputId = scalpelInputGetId(state->inReader);
}
else {
inputId = " (input reader not yet set)";
}
switch (error) {
case SCALPEL_ERROR_PTHREAD_FAILURE:
// fatal
msg = "Scalpel was unable to create threads and will abort.\n";
scalpelLog(state, msg.c_str());
closeAuditFile(state->auditFile);
throw std::runtime_error(msg);
break;
case SCALPEL_ERROR_FILE_OPEN:
// non-fatal
if (inputId == 0 || *(inputId) == '\0') {
scalpelLog(state, "Scalpel was unable to open the input file: <blank>....\n"
"Skipping...\n");
}
else {
scalpelLog(state, "Scalpel was unable to open the input file: %s...%s\n"
"Skipping...\n", inputId, strerror(errno));
}
break;
case SCALPEL_ERROR_FILE_TOO_SMALL:
// non-fatal
scalpelLog(state,
"The input file %s is smaller than the longest header/footer and cannot be processed.\n"
"Skipping...\n", inputId);
break;
case SCALPEL_ERROR_FILE_READ:
// non-fatal
scalpelLog(state, "Scalpel was unable to read the input file: %s\n"
"Skipping...\n", inputId);
break;
case SCALPEL_ERROR_FATAL_READ:
// fatal
msg = "Scalpel was unable to read a needed file and will abort.\n";
scalpelLog(state, msg.c_str());
closeAuditFile(state->auditFile);
throw std::runtime_error(msg);
break;
case SCALPEL_ERROR_NONEMPTY_DIRECTORY:
// fatal
msg = "Scalpel will write only to empty output directories to avoid\n"
"mixing the output from multiple carving operations.\n"
"Please specify a different output directory or delete the specified\noutput directory.\n";
fprintf(stderr, msg.c_str());
closeAuditFile(state->auditFile);
throw std::runtime_error(msg);
break;
case SCALPEL_ERROR_FILE_WRITE:
// fatal--unable to write files, which may mean that disk space is exhausted.
msg = "Scalpel was unable to write output files and will abort.\n"
"This error generally indicates that disk space is exhausted.\n";
fprintf(stderr, msg.c_str());
closeAuditFile(state->auditFile);
throw std::runtime_error(msg);
break;
case SCALPEL_ERROR_NO_SEARCH_SPEC:
// fatal, configuration file didn't specify anything to carve
msg = "ERROR: The configuration file didn't specify any file types to carve.\n"
"(If you're using the default configuration file, you'll have to "
"uncomment some of the file types.)\n";
scalpelLog(state, msg.c_str() );
closeAuditFile(state->auditFile);
throw std::runtime_error(msg);
break;
case SCALPEL_GENERAL_ABORT:
// fatal
msg = "Scalpel will abort.\n";
scalpelLog(state, msg.c_str());
closeAuditFile(state->auditFile);
throw std::runtime_error(msg);
break;
default:
// fatal
closeAuditFile(state->auditFile);
throw std::runtime_error("Unexpected error");
}
}
