X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=mymail.c;h=877215cb1d0509e2822ecf1a7864b989b840adb5;hb=72cd948c9f36ae5e79bf3317aa4e2cda0232c9ee;hp=da9bed10fb61104186f596d8aea521fe6d881d89;hpb=2784e69f483494bdaa06056a4384a85b410a4f6a;p=mymail.git diff --git a/mymail.c b/mymail.c index da9bed1..877215c 100644 --- a/mymail.c +++ b/mymail.c @@ -19,13 +19,6 @@ * */ -/* - - To use it as a super-history-search for bash: - mymail --bash <(history) - -*/ - #define _GNU_SOURCE #include @@ -37,16 +30,23 @@ #include #include #include +#include #define VERSION "0.1" #define BUFFER_SIZE 16384 struct parsable_field { - char *regexp; - char *db_filename; + char *name; + char *regexp_string; + regex_t regexp; }; +char *db_filename; +char *search_pattern; + +int action_index; + /********************************************************************/ /* malloc with error checking. */ @@ -71,12 +71,55 @@ void usage(FILE *out) { 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[BUFFER_SIZE]; + char *name, *value; + regex_t regexp; + + 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); + } + + while(fgets(raw_line, BUFFER_SIZE, db_file)) { + name = raw_line; + value = raw_line; + while(*value && *value != ' ') value++; + *value = '\0'; value++; + while(*value && *value == ' ') value++; + + /* printf("LINE [%s] %s", name, value); */ + + if(strcmp("mail", name) == 0) { + strcpy(current_mail, value); + /* printf("READING [%s]\n", current_mail); */ + } else { + if(strcmp(search_name, name) == 0 && regexec(®exp, value, 0, 0, 0) == 0) { + printf("%s", current_mail); + } + } + } +} + + +/*********************************************************************/ + void read_file(const char *input_filename, int nb_fields_to_parse, struct parsable_field *fields_to_parse, - FILE **db_files) { + FILE *db_file) { char raw_line[BUFFER_SIZE]; FILE *file; - int in_header; + int in_header, new_header; + unsigned int position_in_file; file = fopen(input_filename, "r"); @@ -86,23 +129,48 @@ void read_file(const char *input_filename, } in_header = 0; + new_header = 0; + + position_in_file = 0; while(fgets(raw_line, BUFFER_SIZE, file)) { if(strncmp(raw_line, "From ", 5) == 0) { if(in_header) { - fprintf(stderr, "Got a 'From ' in the header.\n"); + fprintf(stderr, + "Got a 'From ' in the header in %s:%u.\n", + input_filename, position_in_file); + fprintf(stderr, "%s", raw_line); exit(EXIT_FAILURE); } in_header = 1; + new_header = 1; } else if(strncmp(raw_line, "\n", 1) == 0) { if(in_header) { in_header = 0; } } + /* if(in_header) { */ + /* printf("LINE.H %s", raw_line); */ + /* } else { */ + /* printf("LINE.B %s", raw_line); */ + /* } */ + if(in_header) { - printf("LINE.H %s", raw_line); - } else { - printf("LINE.B %s", raw_line); + int f; + regmatch_t matches; + if(new_header) { + fprintf(db_file, "mail %s:%d\n", input_filename, position_in_file); + new_header = 0; + } + for(f = 0; f < nb_fields_to_parse; f++) { + if(regexec(&fields_to_parse[f].regexp, raw_line, 1, &matches, 0) == 0) { + fprintf(db_file, "%s %s", + fields_to_parse[f].name, + raw_line + matches.rm_eo); + } + } } + + position_in_file += strlen(raw_line); } fclose(file); @@ -117,7 +185,7 @@ int ignore_entry(const char *name) { void process_entry(const char *dir_name, int nb_fields_to_parse, struct parsable_field *fields_to_parse, - FILE **db_files) { + FILE *db_file) { DIR *dir; struct dirent *dir_e; struct stat sb; @@ -143,14 +211,14 @@ void process_entry(const char *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_entry(subname, nb_fields_to_parse, fields_to_parse, db_files); + process_entry(subname, nb_fields_to_parse, fields_to_parse, db_file); } } closedir(dir); } else { if(S_ISREG(sb.st_mode)) { - printf("Processing regular file '%s'.\n", dir_name); - read_file(dir_name, nb_fields_to_parse, fields_to_parse, db_files); + /* printf("Processing regular file '%s'.\n", dir_name); */ + read_file(dir_name, nb_fields_to_parse, fields_to_parse, db_file); } } } @@ -166,11 +234,24 @@ enum static struct option long_options[] = { { "help", no_argument, 0, 'h' }, + { "db-prefix", 1, 0, 'p' }, + { "search-pattern", 1, 0, 's' }, + { "index", 0, 0, 'i' }, { 0, 0, 0, 0 } }; static struct parsable_field fields_to_parse[] = { - { "^[Tt][Oo]:", "/tmp/mymail-to" } + { + "from", + "^\\([Ff][Rr][Oo][Mm]:\\|From\\) *", + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + }, + + { + "dest", + "^\\([Tt][Oo]\\|[Cc][Cc]\\|[Bb][Cc][Cc]\\): *", + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } + }, }; int main(int argc, char **argv) { @@ -178,11 +259,13 @@ int main(int argc, char **argv) { const int nb_fields_to_parse = sizeof(fields_to_parse) / sizeof(struct parsable_field); char c; int f; - FILE **db_files; + + action_index = 0; + search_pattern = 0; setlocale(LC_ALL, ""); - while ((c = getopt_long(argc, argv, "h", + while ((c = getopt_long(argc, argv, "hip:s:", long_options, NULL)) != -1) { switch(c) { @@ -191,12 +274,33 @@ int main(int argc, char **argv) { show_help = 1; break; + case 'i': + action_index = 1; + break; + + case 'p': + db_filename = strdup(optarg); + break; + + case 's': + if(search_pattern) { + fprintf(stderr, + "mymail: Search pattern already defined.\n"); + exit(EXIT_FAILURE); + } + search_pattern = strdup(optarg); + break; + default: error = 1; break; } } + if(!db_filename) { + db_filename = strdup("/tmp/mymail"); + } + if(error) { usage(stderr); exit(EXIT_FAILURE); @@ -207,30 +311,77 @@ int main(int argc, char **argv) { exit(EXIT_SUCCESS); } - db_files = safe_malloc(nb_fields_to_parse * sizeof(FILE *)); - - for(f = 0; f < nb_fields_to_parse; f++) { - db_files[f] = fopen(fields_to_parse[f].db_filename, "w"); - if(!db_files[f]) { + if(action_index) { + FILE *db_file = fopen(db_filename, "w"); + if(!db_file) { fprintf(stderr, "mymail: Can not open \"%s\" for writing: %s\n", - fields_to_parse[f].db_filename, + db_filename, strerror(errno)); + exit(EXIT_FAILURE); } - } - while(optind < argc) { - process_entry(argv[optind], - nb_fields_to_parse, fields_to_parse, - db_files); - optind++; - } + 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, + fields_to_parse[f].name); + exit(EXIT_FAILURE); + } + } + + while(optind < argc) { + process_entry(argv[optind], + nb_fields_to_parse, fields_to_parse, db_file); + optind++; + } + + fclose(db_file); - for(f = 0; f < nb_fields_to_parse; f++) { - fclose(db_files[f]); + for(f = 0; f < nb_fields_to_parse; f++) { + regfree(&fields_to_parse[f].regexp); + } } - free(db_files); + else { + if(search_pattern) { + FILE *db_file; + char *search_name; + char *search_regexp_string; + search_name = search_pattern; + search_regexp_string = search_pattern; + while(*search_regexp_string && *search_regexp_string != ' ') search_regexp_string++; + *search_regexp_string = '\0'; search_regexp_string++; + while(*search_regexp_string && *search_regexp_string == ' ') search_regexp_string++; + 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_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); + } + } exit(EXIT_SUCCESS); }