X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=mymail.c;h=3d5efc066e5ae5db1ea5752537801c4b989296fb;hb=ebdee6d9d900ad41e561502b2a6597433b57f485;hp=c24c701cf487d7b971758a44786e562517794362;hpb=d6081facd85f846089fa90fb7a24eb2c2dfb2d28;p=mymail.git diff --git a/mymail.c b/mymail.c index c24c701..3d5efc0 100644 --- a/mymail.c +++ b/mymail.c @@ -21,8 +21,13 @@ /* - To use it as a super-history-search for bash: - mymail --bash <(history) + This command is a dumb mail indexer. It can either (1) scan + directories containing mbox files, and create a db file containing + for each mail a list of fields computed from the header, or (2) + read such a db file and get all the mails matching regexp-defined + conditions on the fields. + + It is low-tech, simple, light and fast. */ @@ -37,10 +42,106 @@ #include #include #include +#include + +#define MYMAIL_DB_MAGIC_TOKEN "mymail_index_file" +#define VERSION "0.9.1" + +#define MAX_NB_SEARCH_CONDITIONS 10 + +#define BUFFER_SIZE 65536 + +char *db_filename; +char *db_filename_regexp_string; +char *db_root_path; +char *db_filename_list; + +int paranoid; +int action_index; + +/********************************************************************/ + +enum { + ID_MAIL = 0, + ID_FROM, + ID_TO, + ID_SUBJECT, + ID_DATE, + ID_PARTICIPANT, + ID_BODY, + MAX_ID +}; + +static char *field_names[] = { + "mail", + "from", + "to", + "subject", + "date", + "part", + "body" +}; + +/********************************************************************/ + +struct search_condition { + int field_id; + int negation; + regex_t regexp; +}; + +/********************************************************************/ + +struct parsable_field { + int id; + char *regexp_string; + regex_t regexp; +}; + +static struct parsable_field fields_to_parse[] = { + { + ID_FROM, + "^\\(From \\|[Ff][Rr][Oo][Mm]:\\|[R][r][E][e][P][p][L][l][Y][y]-[T][t][O][o]:\\)", + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + }, + + { + ID_TO, + "^\\([Tt][Oo]\\|[Cc][Cc]\\|[Bb][Cc][Cc]\\): ", + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + }, + + { + ID_SUBJECT, + "^[Ss][Uu][Bb][Jj][Ee][Cc][Tt]: ", + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + }, + + { + ID_DATE, + "^[Dd][Aa][Tt][Ee]: ", + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + }, + +}; + +/********************************************************************/ + +int xor(int a, int b) { + return (a && !b) || (!a && b); +} -#define VERSION "0.1" +char *segment_next_field(char *current) { + while(*current && *current != ' ') current++; + *current = '\0'; current++; + while(*current && *current == ' ') current++; + return current; +} -#define BUFFER_SIZE 16384 +void remove_eof(char *c) { + while(*c && *c != '\n' && *c != '\r') c++; + *c = '\0'; +} /********************************************************************/ @@ -50,7 +151,7 @@ void *safe_malloc(size_t n) { void *p = malloc(n); if(!p && n != 0) { fprintf(stderr, - "mymail: can not allocate memory: %s\n", strerror(errno)); + "mymail: cannot allocate memory: %s\n", strerror(errno)); exit(EXIT_FAILURE); } return p; @@ -58,90 +159,391 @@ void *safe_malloc(size_t n) { /*********************************************************************/ -void usage(FILE *out) { +void print_version(FILE *out) { fprintf(out, "mymail version %s (%s)\n", VERSION, UNAME); +} + +void print_usage(FILE *out) { + print_version(out); fprintf(out, "Written by Francois Fleuret .\n"); fprintf(out, "\n"); - fprintf(out, "Usage: mymail [options] [ [ ...]]\n"); + fprintf(out, "Usage: mymail [options] [ [ ...]| [ ...]]\n"); fprintf(out, "\n"); + fprintf(out, " -h, --help\n"); + fprintf(out, " show this help\n"); + fprintf(out, " -v, --version\n"); + fprintf(out, " print the version number\n"); + fprintf(out, " -p , --db-pattern \n"); + fprintf(out, " set the db filename pattern for recursive search\n"); + fprintf(out, " -r , --db-root \n"); + fprintf(out, " set the db root path for recursive search\n"); + fprintf(out, " -l , --db-list \n"); + fprintf(out, " set the semicolon-separated list of db files for search\n"); + fprintf(out, " -s , --search \n"); + fprintf(out, " search for matching mails in the db file\n"); + fprintf(out, " -d , --db-file \n"); + fprintf(out, " set the db filename for indexing\n"); + fprintf(out, " -i, --index\n"); + fprintf(out, " index mails\n"); +} + +/*********************************************************************/ + +int ignore_entry(const char *name) { + return + /* strcmp(name, ".") == 0 || */ + /* strcmp(name, "..") == 0 || */ + (name[0] == '.' && name[1] != '/'); +} + +int mbox_line_match_search(struct search_condition *condition, + int mbox_id, char *mbox_value) { + return + (condition->field_id == mbox_id || + (condition->field_id == ID_PARTICIPANT && (mbox_id == ID_FROM || mbox_id == ID_TO))) + && + regexec(&condition->regexp, mbox_value, 0, 0, 0) == 0; +} + +void search_in_db(int nb_search_conditions, + struct search_condition *search_conditions, + FILE *db_file) { + int hits[MAX_NB_SEARCH_CONDITIONS]; + char raw_db_line[BUFFER_SIZE]; + char raw_mbox_line[BUFFER_SIZE]; + char current_mail_filename[PATH_MAX + 1]; + unsigned long int current_position_in_mail; + char *mbox_name, *mbox_value; + int mbox_id; + int already_written, m, n; + int last_mbox_line_was_empty; + int nb_body_conditions, nb_fulfilled_body_conditions; + + current_position_in_mail = 0; + already_written = 0; + + for(n = 0; n < nb_search_conditions; n++) { hits[n] = 0; } + + nb_body_conditions = 0; + for(n = 0; n < nb_search_conditions; n++) { + if(search_conditions[n].field_id == ID_BODY) { + nb_body_conditions++; + } + } + + while(fgets(raw_db_line, BUFFER_SIZE, db_file)) { + mbox_name = raw_db_line; + mbox_value = segment_next_field(raw_db_line); + + if(strcmp("mail", mbox_name) == 0) { + char *position_in_file_string; + char *mail_filename; + + /* We first check all conditions but the body ones */ + + for(n = 0; n < nb_search_conditions && + ((search_conditions[n].field_id == ID_BODY) || + xor(hits[n], search_conditions[n].negation)); n++); + + if(n == nb_search_conditions) { + + /* all conditions but the body ones are fine, check the body + ones */ + + nb_fulfilled_body_conditions = 0; + + if(nb_body_conditions > 0) { + FILE *mail_file; + int header; + + header = 1; + mail_file = fopen(current_mail_filename, "r"); + + if(!mail_file) { + fprintf(stderr, "mymail: Cannot open mbox '%s'.\n", current_mail_filename); + exit(EXIT_FAILURE); + } + + fseek(mail_file, current_position_in_mail, SEEK_SET); + + if(fgets(raw_mbox_line, BUFFER_SIZE, mail_file)) { + while(nb_fulfilled_body_conditions < nb_body_conditions) { + last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); + + if(last_mbox_line_was_empty) { header = 0; } + + if(!header) { + for(n = 0; n < nb_search_conditions; n++) { + if(search_conditions[n].field_id == ID_BODY && !hits[n]) { + hits[n] = + (regexec(&search_conditions[n].regexp, raw_mbox_line, 0, 0, 0) == 0); + if(hits[n]) { + fprintf(stderr, "** %d %s", header, raw_mbox_line); + nb_fulfilled_body_conditions++; + } + } + } + } + + if(!fgets(raw_mbox_line, BUFFER_SIZE, mail_file) || + (last_mbox_line_was_empty && strncmp(raw_mbox_line, "From ", 5) == 0)) break; + } + } + + fclose(mail_file); + } + + if(nb_body_conditions == nb_fulfilled_body_conditions) { + FILE *mail_file; + + mail_file = fopen(current_mail_filename, "r"); + + if(!mail_file) { + fprintf(stderr, "mymail: Cannot open mbox '%s'.\n", current_mail_filename); + exit(EXIT_FAILURE); + } + + fseek(mail_file, current_position_in_mail, SEEK_SET); + + if(fgets(raw_mbox_line, BUFFER_SIZE, mail_file)) { + last_mbox_line_was_empty = 1; + printf("%s", raw_mbox_line); + while(1) { + if(!fgets(raw_mbox_line, BUFFER_SIZE, mail_file) || + (last_mbox_line_was_empty && strncmp(raw_mbox_line, "From ", 5) == 0)) break; + last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); + printf("%s", raw_mbox_line); + } + } + + fclose(mail_file); + } + } + + for(n = 0; n < nb_search_conditions; n++) { hits[n] = 0; } + + position_in_file_string = mbox_value; + mail_filename = segment_next_field(mbox_value); + current_position_in_mail = atol(position_in_file_string); + strcpy(current_mail_filename, mail_filename); + + remove_eof(current_mail_filename); + already_written = 0; + } + + else { + mbox_id = -1; + for(m = 0; (m < MAX_ID) && mbox_id == -1; m++) { + if(strncmp(field_names[m], mbox_name, strlen(mbox_name)) == 0) { + mbox_id = m; + } + } + for(n = 0; n < nb_search_conditions; n++) { + hits[n] |= mbox_line_match_search(&search_conditions[n], + mbox_id, mbox_value); + } + } + } } -void read_file(const char *input_filename) { +void recursive_search_in_db(const char *entry_name, regex_t *db_filename_regexp, + int nb_search_conditions, struct search_condition *search_conditions) { + DIR *dir; + struct dirent *dir_e; + struct stat sb; + char raw_db_line[BUFFER_SIZE]; + char subname[PATH_MAX + 1]; + + if(lstat(entry_name, &sb) != 0) { + fprintf(stderr, + "mymail: Cannot stat \"%s\": %s\n", + entry_name, + strerror(errno)); + exit(EXIT_FAILURE); + } + + dir = opendir(entry_name); + + if(dir) { + while((dir_e = readdir(dir))) { + if(!ignore_entry(dir_e->d_name)) { + snprintf(subname, PATH_MAX, "%s/%s", entry_name, dir_e->d_name); + recursive_search_in_db(subname, db_filename_regexp, + nb_search_conditions, search_conditions); + } + } + closedir(dir); + } + + else { + const char *s = entry_name, *filename = entry_name; + while(*s) { if(*s == '/') { filename = s+1; } s++; } - char raw_line[BUFFER_SIZE]; - char *s; + if(regexec(db_filename_regexp, filename, 0, 0, 0) == 0) { + FILE *db_file = fopen(entry_name, "r"); + + if(!db_file) { + fprintf(stderr, + "mymail: Cannot open \"%s\" for reading: %s\n", + db_filename, + strerror(errno)); + exit(EXIT_FAILURE); + } + + if(fgets(raw_db_line, BUFFER_SIZE, db_file)) { + if(strncmp(raw_db_line, MYMAIL_DB_MAGIC_TOKEN, strlen(MYMAIL_DB_MAGIC_TOKEN))) { + fprintf(stderr, + "mymail: Header line in '%s' does not match the mymail db format.\n", + entry_name); + exit(EXIT_FAILURE); + } + } else { + fprintf(stderr, + "mymail: Cannot read the header line in '%s'.\n", + entry_name); + exit(EXIT_FAILURE); + } + + search_in_db(nb_search_conditions, search_conditions, db_file); + + fclose(db_file); + } + } +} + +/*********************************************************************/ + +void index_one_mbox_line(int nb_fields_to_parse, struct parsable_field *fields_to_parse, + char *raw_mbox_line, FILE *db_file) { + regmatch_t matches; + int f; + for(f = 0; f < nb_fields_to_parse; f++) { + if(regexec(&fields_to_parse[f].regexp, raw_mbox_line, 1, &matches, 0) == 0) { + fprintf(db_file, "%s %s\n", + field_names[fields_to_parse[f].id], + raw_mbox_line + matches.rm_eo); + } + } +} + +void index_mbox(const char *mbox_filename, + int nb_fields_to_parse, struct parsable_field *fields_to_parse, + FILE *db_file) { + char raw_mbox_line[BUFFER_SIZE], full_line[BUFFER_SIZE]; + char *end_of_full_line; FILE *file; - int in_header; + int in_header, new_header, last_mbox_line_was_empty; + unsigned long int position_in_file; - file = fopen(input_filename, "r"); + file = fopen(mbox_filename, "r"); if(!file) { - fprintf(stderr, "mymail: Can not open `%s'.\n", input_filename); - exit(EXIT_FAILURE); + fprintf(stderr, "mymail: Cannot open '%s'.\n", mbox_filename); + if(paranoid) { exit(EXIT_FAILURE); } + return; } in_header = 0; + new_header = 0; - while(fgets(raw_line, BUFFER_SIZE, file)) { - if(strncmp(raw_line, "From ", 5) == 0) { + position_in_file = 0; + end_of_full_line = 0; + full_line[0] = '\0'; + last_mbox_line_was_empty = 1; + + while(fgets(raw_mbox_line, BUFFER_SIZE, file)) { + if(last_mbox_line_was_empty && strncmp(raw_mbox_line, "From ", 5) == 0) { if(in_header) { - fprintf(stderr, "Got a 'From ' in the header.\n"); - exit(EXIT_FAILURE); + fprintf(stderr, + "Got a ^\"From \" in the header in %s:%lu.\n", + mbox_filename, position_in_file); + fprintf(stderr, "%s", raw_mbox_line); + if(paranoid) { exit(EXIT_FAILURE); } } in_header = 1; - } else if(strncmp(raw_line, "\n", 1) == 0) { + new_header = 1; + } else if(raw_mbox_line[0] == '\n') { if(in_header) { in_header = 0; } } + last_mbox_line_was_empty = (raw_mbox_line[0] == '\n'); + if(in_header) { - printf("LINE.H %s", raw_line); - } else { - printf("LINE.B %s", raw_line); + if(new_header) { + fprintf(db_file, "mail %lu %s\n", position_in_file, mbox_filename); + new_header = 0; + } + + if(raw_mbox_line[0] == ' ' || raw_mbox_line[0] == '\t') { + char *start = raw_mbox_line; + while(*start == ' ' || *start == '\t') start++; + *(end_of_full_line++) = ' '; + strcpy(end_of_full_line, start); + while(*end_of_full_line && *end_of_full_line != '\n') { + end_of_full_line++; + } + *end_of_full_line = '\0'; + } + + else { + /* + if(!((raw_mbox_line[0] >= 'a' && raw_mbox_line[0] <= 'z') || + (raw_mbox_line[0] >= 'A' && raw_mbox_line[0] <= 'Z'))) { + fprintf(stderr, + "Header line syntax error %s:%lu.\n", + mbox_filename, position_in_file); + fprintf(stderr, "%s", raw_mbox_line); + } + */ + + if(full_line[0]) { + index_one_mbox_line(nb_fields_to_parse, fields_to_parse, full_line, db_file); + } + + end_of_full_line = full_line; + strcpy(end_of_full_line, raw_mbox_line); + while(*end_of_full_line && *end_of_full_line != '\n') { + end_of_full_line++; + } + *end_of_full_line = '\0'; + } + } + + position_in_file += strlen(raw_mbox_line); } fclose(file); } -int ignore_entry(const char *name) { - return - strcmp(name, ".") == 0 || - strcmp(name, "..") == 0 || - (name[0] == '.' && name[1] != '/'); -} - -void process_dir(const char *dir_name) { +void recursive_index_mbox(FILE *db_file, + const char *entry_name, + int nb_fields_to_parse, struct parsable_field *fields_to_parse) { DIR *dir; struct dirent *dir_e; struct stat sb; char subname[PATH_MAX + 1]; - if(lstat(dir_name, &sb) != 0) { - fprintf(stderr, "mymail: Can not stat \"%s\": %s\n", dir_name, strerror(errno)); + if(lstat(entry_name, &sb) != 0) { + fprintf(stderr, + "mymail: Cannot stat \"%s\": %s\n", + entry_name, + strerror(errno)); exit(EXIT_FAILURE); - } else { - } - - if(S_ISLNK(sb.st_mode)) { - return; } - dir = opendir(dir_name); + dir = opendir(entry_name); if(dir) { - printf("Processing directory '%s'.\n", dir_name); while((dir_e = readdir(dir))) { if(!ignore_entry(dir_e->d_name)) { - snprintf(subname, PATH_MAX, "%s/%s", dir_name, dir_e->d_name); - process_dir(subname); + snprintf(subname, PATH_MAX, "%s/%s", entry_name, dir_e->d_name); + recursive_index_mbox(db_file, subname, nb_fields_to_parse, fields_to_parse); } } closedir(dir); } else { - if(S_ISREG(sb.st_mode)) { - printf("Processing regular file '%s'.\n", dir_name); - read_file(dir_name); - } + index_mbox(entry_name, nb_fields_to_parse, fields_to_parse, db_file); } } @@ -149,23 +551,47 @@ void process_dir(const char *dir_name) { /* For long options that have no equivalent short option, use a non-character as a pseudo short option, starting with CHAR_MAX + 1. */ -enum -{ +enum { OPT_BASH_MODE = CHAR_MAX + 1 }; static struct option long_options[] = { { "help", no_argument, 0, 'h' }, + { "version", no_argument, 0, 'v' }, + { "db-file", 1, 0, 'd' }, + { "db-pattern", 1, 0, 'p' }, + { "db-root", 1, 0, 'r' }, + { "db-list", 1, 0, 'l' }, + { "search", 1, 0, 's' }, + { "index", 0, 0, 'i' }, { 0, 0, 0, 0 } }; +/*********************************************************************/ + int main(int argc, char **argv) { int error = 0, show_help = 0; + const int nb_fields_to_parse = sizeof(fields_to_parse) / sizeof(struct parsable_field); char c; + int f; + int nb_search_conditions; + char *search_condition_strings[MAX_NB_SEARCH_CONDITIONS]; + + /* for(f = 0; f < argc; f++) { */ + /* printf("arg %d \"%s\"\n", f, argv[f]); */ + /* } */ + + paranoid = 0; + action_index = 0; + db_filename = 0; + db_root_path = 0; + db_filename_list = 0; setlocale(LC_ALL, ""); - while ((c = getopt_long(argc, argv, "o:s:x:vwmqf:ibzdeajyunt:r:l:c:-h", + nb_search_conditions = 0; + + while ((c = getopt_long(argc, argv, "hvip:s:d:r:l:", long_options, NULL)) != -1) { switch(c) { @@ -174,26 +600,256 @@ int main(int argc, char **argv) { show_help = 1; break; + case 'v': + print_version(stdout); + break; + + case 'i': + action_index = 1; + break; + + case 'd': + db_filename = strdup(optarg); + break; + + case 'p': + db_filename_regexp_string = strdup(optarg); + break; + + case 'r': + db_root_path = strdup(optarg); + break; + + case 'l': + db_filename_list = strdup(optarg); + break; + + case 's': + if(nb_search_conditions == MAX_NB_SEARCH_CONDITIONS) { + fprintf(stderr, "mymail: Too many search patterns.\n"); + exit(EXIT_FAILURE); + } + search_condition_strings[nb_search_conditions++] = strdup(optarg); + break; + default: error = 1; break; } } + if(!db_filename) { + char *default_db_filename = getenv("MYMAIL_DB_FILE"); + + if(!default_db_filename) { + default_db_filename = "mymail.db"; + } + + db_filename = strdup(default_db_filename); + } + + if(!db_filename_regexp_string) { + char *default_db_filename_regexp_string = getenv("MYMAIL_DB_PATTERN"); + + if(!default_db_filename_regexp_string) { + default_db_filename_regexp_string = "^mymail.db$"; + } + + db_filename_regexp_string = strdup(default_db_filename_regexp_string); + } + + if(!db_root_path) { + char *default_db_root_path = getenv("MYMAIL_DB_ROOT"); + + if(default_db_root_path) { + db_root_path = strdup(default_db_root_path); + } + } + + if(!db_filename_list) { + char *default_db_filename_list = getenv("MYMAIL_DB_LIST"); + + if(default_db_filename_list) { + db_filename_list = strdup(default_db_filename_list); + } + } + if(error) { - usage(stderr); + print_usage(stderr); exit(EXIT_FAILURE); } if(show_help) { - usage(stdout); + print_usage(stdout); exit(EXIT_SUCCESS); } - while(optind < argc) { - process_dir(argv[optind]); - optind++; + if(action_index) { + FILE *db_file; + + db_file = fopen(db_filename, "w"); + + if(!db_file) { + fprintf(stderr, + "mymail: Cannot open \"%s\" for writing: %s\n", + db_filename, + strerror(errno)); + exit(EXIT_FAILURE); + } + + for(f = 0; f < nb_fields_to_parse; f++) { + if(regcomp(&fields_to_parse[f].regexp, + fields_to_parse[f].regexp_string, + REG_ICASE)) { + fprintf(stderr, + "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n", + fields_to_parse[f].regexp_string, + field_names[fields_to_parse[f].id]); + exit(EXIT_FAILURE); + } + } + + fprintf(db_file, "%s version_%s raw\n", MYMAIL_DB_MAGIC_TOKEN, VERSION); + + while(optind < argc) { + recursive_index_mbox(db_file, + argv[optind], + nb_fields_to_parse, fields_to_parse); + optind++; + } + + fclose(db_file); + + for(f = 0; f < nb_fields_to_parse; f++) { + regfree(&fields_to_parse[f].regexp); + } } + else { + + if(nb_search_conditions > 0) { + struct search_condition search_conditions[MAX_NB_SEARCH_CONDITIONS]; + char *search_field, *search_regexp_string; + int m, n; + + for(n = 0; n < nb_search_conditions; n++) { + search_field = search_condition_strings[n]; + search_regexp_string = segment_next_field(search_condition_strings[n]); + + if(search_field[0] == '!') { + search_field++; + search_conditions[n].negation = 1; + } else { + search_conditions[n].negation = 0; + } + + search_conditions[n].field_id = -1; + for(m = 0; (m < MAX_ID) && search_conditions[n].field_id == -1; m++) { + if(strncmp(field_names[m], search_field, strlen(search_field)) == 0) { + search_conditions[n].field_id = m; + } + } + + if(search_conditions[n].field_id == -1) { + fprintf(stderr, + "mymail: Syntax error in field name \"%s\".\n", + search_field); + exit(EXIT_FAILURE); + } + + if(regcomp(&search_conditions[n].regexp, + search_regexp_string, + REG_ICASE)) { + fprintf(stderr, + "mymail: Syntax error in regexp \"%s\" for field \"%s\".\n", + search_regexp_string, + field_names[search_conditions[n].field_id]); + exit(EXIT_FAILURE); + } + } + + /* Recursive search if db_root_path is set */ + + if(db_root_path) { + regex_t db_filename_regexp; + if(regcomp(&db_filename_regexp, + db_filename_regexp_string, + 0)) { + fprintf(stderr, + "mymail: Syntax error in regexp \"%s\".\n", + db_filename_regexp_string); + exit(EXIT_FAILURE); + } + + recursive_search_in_db(db_root_path, &db_filename_regexp, + nb_search_conditions, search_conditions); + + regfree(&db_filename_regexp); + } + + /* Search in all db files listed in db_filename_list */ + + if(db_filename_list) { + char db_filename[PATH_MAX + 1]; + char *s, *t; + FILE *db_file; + + s = db_filename_list; + + while(*s) { + t = db_filename; + while(*s == ';') { s++; } + while(*s && *s != ';') { *t++ = *s++; } + *t++ = '\0'; + + if(db_filename[0]) { + db_file = fopen(db_filename, "r"); + + if(!db_file) { + fprintf(stderr, + "mymail: Cannot open \"%s\" for reading: %s\n", + argv[optind], + strerror(errno)); + exit(EXIT_FAILURE); + } + + search_in_db(nb_search_conditions, search_conditions, db_file); + + fclose(db_file); + } + } + } + + /* Search in all db files listed in the command arguments */ + + while(optind < argc) { + FILE *db_file = fopen(argv[optind], "r"); + + if(!db_file) { + fprintf(stderr, + "mymail: Cannot open \"%s\" for reading: %s\n", + argv[optind], + strerror(errno)); + exit(EXIT_FAILURE); + } + + search_in_db(nb_search_conditions, search_conditions, db_file); + + fclose(db_file); + optind++; + } + + for(n = 0; n < nb_search_conditions; n++) { + regfree(&search_conditions[n].regexp); + free(search_condition_strings[n]); + } + } + } + + free(db_filename); + free(db_filename_regexp_string); + free(db_root_path); + free(db_filename_list); + exit(EXIT_SUCCESS); }