int action_index;
+char *segment_next_field(char *current) {
+ while(*current && *current != ' ') current++;
+ *current = '\0'; current++;
+ while(*current && *current == ' ') current++;
+ return current;
+}
+
+void remove_eof(char *c) {
+ while(*c && *c != '\n' && *c != '\r') c++;
+ *c = '\0';
+}
+
/********************************************************************/
/* malloc with error checking. */
fprintf(out, "\n");
}
+/*********************************************************************/
+
+void search_in_db(const char *search_name, const char *search_regexp_string,
+ FILE *db_file) {
+ char raw_line[BUFFER_SIZE];
+ char current_mail_filename[BUFFER_SIZE];
+ unsigned int current_position_in_mail;
+ char *name, *value;
+ regex_t regexp;
+ int already_written;
+
+ if(regcomp(®exp,
+ search_regexp_string,
+ REG_ICASE)) {
+ fprintf(stderr,
+ "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n",
+ search_regexp_string,
+ search_name);
+ exit(EXIT_FAILURE);
+ }
+
+ current_position_in_mail = 0;
+ already_written = 0;
+
+ while(fgets(raw_line, BUFFER_SIZE, db_file)) {
+ name = raw_line;
+ value = segment_next_field(raw_line);
+
+ /* printf("LINE [%s] %s", name, value); */
+
+ if(strcmp("mail", name) == 0) {
+ char *position_in_file_string = value;
+ char *mail_filename = segment_next_field(value);
+ current_position_in_mail = atoi(position_in_file_string);
+ strcpy(current_mail_filename, mail_filename);
+ remove_eof(current_mail_filename);
+ /* printf("READING [%s]\n", current_mail_filename); */
+ already_written = 0;
+ } else if(!already_written) {
+ if(strcmp(search_name, name) == 0 && regexec(®exp, value, 0, 0, 0) == 0) {
+ FILE *mail_file;
+ /* printf("%s:%u\n", current_mail_filename, current_position_in_mail); */
+ mail_file = fopen(current_mail_filename, "r");
+ if(!mail_file) {
+ fprintf(stderr, "mymail: Can not open `%s'.\n", current_mail_filename);
+ exit(EXIT_FAILURE);
+ }
+ fseek(mail_file, current_position_in_mail, SEEK_SET);
+ if(fgets(raw_line, BUFFER_SIZE, mail_file)) {
+ printf("%s", raw_line);
+ while(fgets(raw_line, BUFFER_SIZE, mail_file) &&
+ strncmp(raw_line, "From ", 5)) {
+ printf("%s", raw_line);
+ }
+ }
+ fclose(mail_file);
+ already_written = 1;
+ }
+ }
+ }
+}
+
+
+/*********************************************************************/
+
void read_file(const char *input_filename,
int nb_fields_to_parse, struct parsable_field *fields_to_parse,
FILE *db_file) {
int f;
regmatch_t matches;
if(new_header) {
- fprintf(db_file, "mail %s:%d\n", input_filename, position_in_file);
+ fprintf(db_file, "mail %u %s\n", position_in_file, input_filename);
new_header = 0;
}
for(f = 0; f < nb_fields_to_parse; f++) {
else {
if(search_pattern) {
+ FILE *db_file;
char *search_name;
- char *search_regexp;
+ char *search_regexp_string;
search_name = search_pattern;
- search_regexp = search_pattern;
- while(*search_regexp && *search_regexp != ' ') search_regexp++;
- *search_regexp = '\0'; search_regexp++;
- while(*search_regexp && *search_regexp == ' ') search_regexp++;
- if(!*search_regexp) {
+ search_regexp_string = segment_next_field(search_pattern);
+ if(!*search_regexp_string) {
fprintf(stderr,
"Syntax error in the search pattern.\n");
exit(EXIT_FAILURE);
}
- printf("Starting search in %s for field \"%s\" matching \"%s\".\n",
- db_filename,
- search_name,
- search_regexp);
+
+ /* printf("Starting search in %s for field \"%s\" matching \"%s\".\n", */
+ /* db_filename, */
+ /* search_name, */
+ /* search_regexp_string); */
+
+ db_file = fopen(db_filename, "r");
+
+ if(!db_file) {
+ fprintf(stderr,
+ "mymail: Can not open \"%s\" for reading: %s\n",
+ db_filename,
+ strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+
+ search_in_db(search_name, search_regexp_string, db_file);
+
+ fclose(db_file);
free(search_pattern);
}
}