static unsigned char should_print_message(const char *buffer, size_t length)
{
if (length < 3) return 0; // don't want blank lines
size_t space_offsets[3];
find_space_offsets(buffer, length, space_offsets);
// Check whether process name matches the one passed to -p option and filter if needed
if (strlen(requiredProcessName)) {
char processName[256];
memset(processName, '\0', 256);
memcpy(processName, buffer + space_offsets[0] + 1, space_offsets[1] - space_offsets[0]);
for (int i=strlen(processName); i!=0; i--)
if (processName[i]=='[')
processName[i]='\0';
if (strcmp(processName, requiredProcessName)!=0)
return 0;
}
// More filtering options can be added here and return 0 when they won't meed filter criteria
return 1;
}
static unsigned char should_print_message(const char *buffer, size_t length)
{
if (length < 3) return 0; // don't want blank lines
unsigned char should_print = 1;
size_t space_offsets[3];
find_space_offsets(buffer, length, space_offsets);
// Check whether process name matches the one passed to -p option and filter if needed
if (requiredProcessNames != NULL) {
char *currentProcessName;
int nameLength = space_offsets[1] - space_offsets[0]; //This size includes the NULL terminator.
char *processName = malloc(nameLength);
processName[nameLength - 1] = '\0';
memcpy(processName, buffer + space_offsets[0] + 1, nameLength - 1);
for (int i = strlen(processName); i != 0; i--)
if (processName[i] == '[')
processName[i] = '\0';
currentProcessName = strtok(strdup(requiredProcessNames), ", ");
while (currentProcessName != NULL) {
should_print = (strcmp(processName, currentProcessName) == 0);
if (should_print)
break;
currentProcessName = strtok(NULL, ", ");
}
free(processName);
}
if (requiredRegex != NULL) {
char *message = malloc(length + 1);
memcpy(message, buffer, length + 1);
message[length + 1] = '\0';
if (regexec(requiredRegex, message, 0, NULL, 0) == REG_NOMATCH)
should_print = 0;
}
// More filtering options can be added here and return 0 when they won't meed filter criteria
return should_print;
}
static unsigned char should_print_message(const char *buffer, size_t length)
{
if (length < 3)
return 0; // don't want blank lines
size_t space_offsets[3];
find_space_offsets(buffer, length, space_offsets);
// Check whether process name matches the one passed to -p option and filter if needed
if (requiredProcessName != NULL) {
int nameLength = space_offsets[1] - space_offsets[0]; //This size includes the NULL terminator.
char *processName = malloc(nameLength);
processName[nameLength - 1] = '\0';
memcpy(processName, buffer + space_offsets[0] + 1, nameLength - 1);
for (int i = strlen(processName); i != 0; i--)
if (processName[i] == '[')
processName[i] = '\0';
if (strcmp(processName, requiredProcessName) != 0){
free(processName);
return 0;
}
free(processName);
}
// Check whether message matches regex filter
if (requiredRegexPattern != NULL) {
int status = regnexec(&requiredRegex, buffer, length, 0, NULL, 0);
if (status != 0) {
// Not a match
return 0;
}
}
// More filtering options can be added here and return 0 when they won't meed filter criteria
return 1;
}
static void write_colored(int fd, const char *buffer, size_t length)
{
if (length < 16) {
write_fully(fd, buffer, length);
return;
}
size_t space_offsets[3];
int o = find_space_offsets(buffer, length, space_offsets);
if (o == 3) {
// Log date and device name
write_const(fd, COLOR_DARK_WHITE);
write_fully(fd, buffer, space_offsets[0]);
// Log process name
int pos = 0;
for (int i = space_offsets[0]; i < space_offsets[0]; i++) {
if (buffer[i] == '[') {
pos = i;
break;
}
}
write_const(fd, COLOR_CYAN);
if (pos && buffer[space_offsets[1]-1] == ']') {
write_fully(fd, buffer + space_offsets[0], pos - space_offsets[0]);
write_const(fd, COLOR_DARK_CYAN);
write_fully(fd, buffer + pos, space_offsets[1] - pos);
} else {
write_fully(fd, buffer + space_offsets[0], space_offsets[1] - space_offsets[0]);
}
// Log level
size_t levelLength = space_offsets[2] - space_offsets[1];
if (levelLength > 4) {
const char *normalColor;
const char *darkColor;
if (levelLength == 9 && memcmp(buffer + space_offsets[1], " <Debug>:", 9) == 0){
normalColor = COLOR_MAGENTA;
darkColor = COLOR_DARK_MAGENTA;
} else if (levelLength == 11 && memcmp(buffer + space_offsets[1], " <Warning>:", 11) == 0){
normalColor = COLOR_YELLOW;
darkColor = COLOR_DARK_YELLOW;
} else if (levelLength == 9 && memcmp(buffer + space_offsets[1], " <Error>:", 9) == 0){
normalColor = COLOR_RED;
darkColor = COLOR_DARK_RED;
} else if (levelLength == 10 && memcmp(buffer + space_offsets[1], " <Notice>:", 10) == 0) {
normalColor = COLOR_GREEN;
darkColor = COLOR_DARK_GREEN;
} else {
goto level_unformatted;
}
write_string(fd, darkColor);
write_fully(fd, buffer + space_offsets[1], 2);
write_string(fd, normalColor);
write_fully(fd, buffer + space_offsets[1] + 2, levelLength - 4);
write_string(fd, darkColor);
write_fully(fd, buffer + space_offsets[1] + levelLength - 2, 1);
write_const(fd, COLOR_DARK_WHITE);
write_fully(fd, buffer + space_offsets[1] + levelLength - 1, 1);
} else {
level_unformatted:
write_const(fd, COLOR_RESET);
write_fully(fd, buffer + space_offsets[1], levelLength);
}
write_const(fd, COLOR_RESET);
write_fully(fd, buffer + space_offsets[2], length - space_offsets[2]);
} else {
write_fully(fd, buffer, length);
}
}