diff options
Diffstat (limited to 'lib-src')
| -rw-r--r-- | lib-src/update-game-score.c | 247 |
1 files changed, 122 insertions, 125 deletions
diff --git a/lib-src/update-game-score.c b/lib-src/update-game-score.c index 7393135daa9..2e526b00bd0 100644 --- a/lib-src/update-game-score.c +++ b/lib-src/update-game-score.c @@ -69,22 +69,20 @@ extern int optind, opterr; #endif int -usage(err) +usage (err) int err; { - fprintf(stdout, "Usage: update-game-score [-m MAX ] [ -r ] game/scorefile SCORE DATA\n"); - fprintf(stdout, " update-game-score -h\n"); - fprintf(stdout, " -h\t\tDisplay this help.\n"); - fprintf(stdout, " -m MAX\t\tLimit the maximum number of scores to MAX.\n"); - fprintf(stdout, " -r\t\tSort the scores in increasing order.\n"); - fprintf(stdout, " -d DIR\t\tStore scores in DIR (only if not setuid).\n"); - exit(err); + fprintf (stdout, "Usage: update-game-score [-m MAX ] [ -r ] game/scorefile SCORE DATA\n"); + fprintf (stdout, " update-game-score -h\n"); + fprintf (stdout, " -h\t\tDisplay this help.\n"); + fprintf (stdout, " -m MAX\t\tLimit the maximum number of scores to MAX.\n"); + fprintf (stdout, " -r\t\tSort the scores in increasing order.\n"); + fprintf (stdout, " -d DIR\t\tStore scores in DIR (only if not setuid).\n"); + exit (err); } -int -lock_file P_((const char *filename, void **state)); -int -unlock_file P_((const char *filename, void *state)); +int lock_file P_ ((const char *filename, void **state)); +int unlock_file P_ ((const char *filename, void *state)); struct score_entry { @@ -93,77 +91,75 @@ struct score_entry char *data; }; -int -read_scores P_((const char *filename, struct score_entry **scores, - int *count)); -int -push_score P_((struct score_entry **scores, int *count, - int newscore, char *username, char *newdata)); -void -sort_scores P_((struct score_entry *scores, int count, int reverse)); -int -write_scores P_((const char *filename, const struct score_entry *scores, - int count)); +int read_scores P_ ((const char *filename, struct score_entry **scores, + int *count)); +int push_score P_ ((struct score_entry **scores, int *count, + int newscore, char *username, char *newdata)); +void sort_scores P_ ((struct score_entry *scores, int count, int reverse)); +int write_scores P_ ((const char *filename, const struct score_entry *scores, + int count)); -void lose P_((const char *msg)) NO_RETURN; +void lose P_ ((const char *msg)) NO_RETURN; -void lose(msg) +void +lose (msg) const char *msg; { - fprintf(stderr, "%s\n", msg); - exit(1); + fprintf (stderr, "%s\n", msg); + exit (1); } -void lose_syserr P_((const char *msg)) NO_RETURN; +void lose_syserr P_ ((const char *msg)) NO_RETURN; -void lose_syserr(msg) +void +lose_syserr (msg) const char *msg; { - fprintf(stderr, "%s: %s\n", msg, strerror(errno)); - exit(1); + fprintf (stderr, "%s: %s\n", msg, strerror (errno)); + exit (1); } char * get_user_id P_ ((void)) { char *name; - struct passwd *buf = getpwuid(getuid()); + struct passwd *buf = getpwuid (getuid ()); if (!buf) { int count = 1; - int uid = (int) getuid(); + int uid = (int) getuid (); int tuid = uid; while (tuid /= 10) count++; - name = malloc(count+1); + name = malloc (count+1); if (!name) return NULL; - sprintf(name, "%d", uid); + sprintf (name, "%d", uid); return name; } return buf->pw_name; } char * -get_prefix(running_suid, user_prefix) +get_prefix (running_suid, user_prefix) int running_suid; char *user_prefix; { if (!running_suid && user_prefix == NULL) - lose("Not using a shared game directory, and no prefix given."); + lose ("Not using a shared game directory, and no prefix given."); if (running_suid) { #ifdef HAVE_SHARED_GAME_DIR return HAVE_SHARED_GAME_DIR; #else - lose("This program was compiled without HAVE_SHARED_GAME_DIR,\n and should not be suid."); + lose ("This program was compiled without HAVE_SHARED_GAME_DIR,\n and should not be suid."); #endif } return user_prefix; } int -main(argc, argv) +main (argc, argv) int argc; char **argv; { @@ -175,13 +171,13 @@ main(argc, argv) int newscore, scorecount, reverse = 0, max = MAX_SCORES; char *newdata; - srand(time(0)); + srand (time (0)); - while ((c = getopt(argc, argv, "hrm:d:")) != -1) + while ((c = getopt (argc, argv, "hrm:d:")) != -1) switch (c) { case 'h': - usage(0); + usage (0); break; case 'd': user_prefix = optarg; @@ -190,48 +186,48 @@ main(argc, argv) reverse = 1; break; case 'm': - max = atoi(optarg); + max = atoi (optarg); if (max > MAX_SCORES) max = MAX_SCORES; break; default: - usage(1); + usage (1); } if (optind+3 != argc) - usage(1); + usage (1); - running_suid = (getuid() != geteuid()); + running_suid = (getuid () != geteuid ()); - prefix = get_prefix(running_suid, user_prefix); + prefix = get_prefix (running_suid, user_prefix); - scorefile = malloc(strlen(prefix) + strlen(argv[optind]) + 2); + scorefile = malloc (strlen (prefix) + strlen (argv[optind]) + 2); if (!scorefile) - lose_syserr("Couldn't allocate score file"); + lose_syserr ("Couldn't allocate score file"); - strcpy(scorefile, prefix); - strcat(scorefile, "/"); - strcat(scorefile, argv[optind]); - newscore = atoi(argv[optind+1]); + strcpy (scorefile, prefix); + strcat (scorefile, "/"); + strcat (scorefile, argv[optind]); + newscore = atoi (argv[optind+1]); newdata = argv[optind+2]; - if (strlen(newdata) > MAX_DATA_LEN) + if (strlen (newdata) > MAX_DATA_LEN) newdata[MAX_DATA_LEN] = '\0'; - if ((user_id = get_user_id()) == NULL) - lose_syserr("Couldn't determine user id"); + if ((user_id = get_user_id ()) == NULL) + lose_syserr ("Couldn't determine user id"); - if (stat(scorefile, &buf) < 0) - lose_syserr("Failed to access scores file"); + if (stat (scorefile, &buf) < 0) + lose_syserr ("Failed to access scores file"); - if (lock_file(scorefile, &lockstate) < 0) - lose_syserr("Failed to lock scores file"); + if (lock_file (scorefile, &lockstate) < 0) + lose_syserr ("Failed to lock scores file"); - if (read_scores(scorefile, &scores, &scorecount) < 0) + if (read_scores (scorefile, &scores, &scorecount) < 0) { - unlock_file(scorefile, lockstate); - lose_syserr("Failed to read scores file"); + unlock_file (scorefile, lockstate); + lose_syserr ("Failed to read scores file"); } - push_score(&scores, &scorecount, newscore, user_id, newdata); + push_score (&scores, &scorecount, newscore, user_id, newdata); /* Limit the number of scores. If we're using reverse sorting, then we should increment the beginning of the array, to skip over the *smallest* scores. Otherwise, we just decrement the number of @@ -240,58 +236,58 @@ main(argc, argv) scorecount -= (scorecount - MAX_SCORES); if (reverse) scores += (scorecount - MAX_SCORES); - sort_scores(scores, scorecount, reverse); - if (write_scores(scorefile, scores, scorecount) < 0) + sort_scores (scores, scorecount, reverse); + if (write_scores (scorefile, scores, scorecount) < 0) { - unlock_file(scorefile, lockstate); - lose_syserr("Failed to write scores file"); + unlock_file (scorefile, lockstate); + lose_syserr ("Failed to write scores file"); } - unlock_file(scorefile, lockstate); - exit(0); + unlock_file (scorefile, lockstate); + exit (0); } int -read_score(f, score) +read_score (f, score) FILE *f; struct score_entry *score; { int c; - if (feof(f)) + if (feof (f)) return 1; - while ((c = getc(f)) != EOF - && isdigit(c)) + while ((c = getc (f)) != EOF + && isdigit (c)) { score->score *= 10; score->score += (c-48); } - while ((c = getc(f)) != EOF - && isspace(c)) + while ((c = getc (f)) != EOF + && isspace (c)) ; if (c == EOF) return -1; - ungetc(c, f); + ungetc (c, f); #ifdef HAVE_GETDELIM { size_t count = 0; - if (getdelim(&score->username, &count, ' ', f) < 1 + if (getdelim (&score->username, &count, ' ', f) < 1 || score->username == NULL) return -1; /* Trim the space */ - score->username[strlen(score->username)-1] = '\0'; + score->username[strlen (score->username)-1] = '\0'; } #else { int unameread = 0; int unamelen = 30; - char *username = malloc(unamelen); + char *username = malloc (unamelen); if (!username) return -1; - while ((c = getc(f)) != EOF - && !isspace(c)) + while ((c = getc (f)) != EOF + && !isspace (c)) { if (unameread >= unamelen-1) - if (!(username = realloc(username, unamelen *= 2))) + if (!(username = realloc (username, unamelen *= 2))) return -1; username[unameread] = c; unameread++; @@ -307,23 +303,23 @@ read_score(f, score) errno = 0; { size_t len; - if (getline(&score->data, &len, f) < 0) + if (getline (&score->data, &len, f) < 0) return -1; - score->data[strlen(score->data)-1] = '\0'; + score->data[strlen (score->data)-1] = '\0'; } #else { int cur = 0; int len = 16; - char *buf = malloc(len); + char *buf = malloc (len); if (!buf) return -1; - while ((c = getc(f)) != EOF + while ((c = getc (f)) != EOF && c != '\n') { if (cur >= len-1) { - if (!(buf = realloc(buf, len *= 2))) + if (!(buf = realloc (buf, len *= 2))) return -1; } buf[cur] = c; @@ -337,22 +333,22 @@ read_score(f, score) } int -read_scores(filename, scores, count) +read_scores (filename, scores, count) const char *filename; struct score_entry **scores; int *count; { int readval, scorecount, cursize; struct score_entry *ret; - FILE *f = fopen(filename, "r"); + FILE *f = fopen (filename, "r"); if (!f) return -1; scorecount = 0; cursize = 16; - ret = malloc(sizeof(struct score_entry) * cursize); + ret = malloc (sizeof (struct score_entry) * cursize); if (!ret) return -1; - while ((readval = read_score(f, &ret[scorecount])) == 0) + while ((readval = read_score (f, &ret[scorecount])) == 0) { /* We encoutered an error */ if (readval < 0) @@ -360,7 +356,7 @@ read_scores(filename, scores, count) scorecount++; if (scorecount >= cursize) { - ret = realloc(ret, cursize *= 2); + ret = realloc (ret, cursize *= 2); if (!ret) return -1; } @@ -371,7 +367,7 @@ read_scores(filename, scores, count) } int -score_compare(a, b) +score_compare (a, b) const void *a; const void *b; { @@ -381,7 +377,7 @@ score_compare(a, b) } int -score_compare_reverse(a, b) +score_compare_reverse (a, b) const void *a; const void *b; { @@ -391,14 +387,15 @@ score_compare_reverse(a, b) } int -push_score(scores, count, newscore, username, newdata) +push_score (scores, count, newscore, username, newdata) struct score_entry **scores; int *count; int newscore; char *username; char *newdata; { - struct score_entry *newscores = realloc(*scores, - sizeof(struct score_entry) * ((*count) + 1)); + struct score_entry *newscores + = realloc (*scores, + sizeof (struct score_entry) * ((*count) + 1)); if (!newscores) return -1; newscores[*count].score = newscore; @@ -410,49 +407,49 @@ push_score(scores, count, newscore, username, newdata) } void -sort_scores(scores, count, reverse) +sort_scores (scores, count, reverse) struct score_entry *scores; int count; int reverse; { - qsort(scores, count, sizeof(struct score_entry), + qsort (scores, count, sizeof (struct score_entry), reverse ? score_compare_reverse : score_compare); } int -write_scores(filename, scores, count) +write_scores (filename, scores, count) const char *filename; const struct score_entry * scores; int count; { FILE *f; int i; - char *tempfile = malloc(strlen(filename) + strlen(".tempXXXXXX") + 1); + char *tempfile = malloc (strlen (filename) + strlen (".tempXXXXXX") + 1); if (!tempfile) return -1; - strcpy(tempfile, filename); - strcat(tempfile, ".tempXXXXXX"); + strcpy (tempfile, filename); + strcat (tempfile, ".tempXXXXXX"); #ifdef HAVE_MKSTEMP - if (mkstemp(tempfile) < 0 + if (mkstemp (tempfile) < 0 #else - if (mktemp(tempfile) != tempfile + if (mktemp (tempfile) != tempfile #endif - || !(f = fopen(tempfile, "w"))) + || !(f = fopen (tempfile, "w"))) return -1; for (i = 0; i < count; i++) - if (fprintf(f, "%ld %s %s\n", scores[i].score, scores[i].username, + if (fprintf (f, "%ld %s %s\n", scores[i].score, scores[i].username, scores[i].data) < 0) return -1; - fclose(f); - if (rename(tempfile, filename) < 0) + fclose (f); + if (rename (tempfile, filename) < 0) return -1; - if (chmod(filename, 0644) < 0) + if (chmod (filename, 0644) < 0) return -1; return 0; } int -lock_file(filename, state) +lock_file (filename, state) const char *filename; void **state; { @@ -460,19 +457,19 @@ lock_file(filename, state) struct stat buf; int attempts = 0; char *lockext = ".lockfile"; - char *lockpath = malloc(strlen(filename) + strlen(lockext) + 60); + char *lockpath = malloc (strlen (filename) + strlen (lockext) + 60); if (!lockpath) return -1; - strcpy(lockpath, filename); - strcat(lockpath, lockext); + strcpy (lockpath, filename); + strcat (lockpath, lockext); *state = lockpath; trylock: attempts++; /* If the lock is over an hour old, delete it. */ - if (stat(lockpath, &buf) == 0 - && (difftime(buf.st_ctime, time(NULL) > 60*60))) - unlink(lockpath); - if ((fd = open(lockpath, O_CREAT | O_EXCL, 0600)) < 0) + if (stat (lockpath, &buf) == 0 + && (difftime (buf.st_ctime, time (NULL) > 60*60))) + unlink (lockpath); + if ((fd = open (lockpath, O_CREAT | O_EXCL, 0600)) < 0) { if (errno == EEXIST) { @@ -480,28 +477,28 @@ lock_file(filename, state) lose some scores. */ if (attempts > MAX_ATTEMPTS) { - unlink(lockpath); + unlink (lockpath); attempts = 0; } - sleep((rand() % 2)+1); + sleep ((rand () % 2)+1); goto trylock; } else return -1; } - close(fd); + close (fd); return 0; } int -unlock_file(filename, state) +unlock_file (filename, state) const char *filename; void *state; { char *lockpath = (char *) state; - int ret = unlink(lockpath); + int ret = unlink (lockpath); int saved_errno = errno; - free(lockpath); + free (lockpath); errno = saved_errno; return ret; } |