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-rw-r--r--src/command.c320
1 files changed, 106 insertions, 214 deletions
diff --git a/src/command.c b/src/command.c
index 79f2019c3..4411b2bd0 100644
--- a/src/command.c
+++ b/src/command.c
@@ -140,6 +140,16 @@ struct _CommandEntry {
CommandListHandlerFunction listHandler;
};
+
+/* this should really be "need a non-negative integer": */
+static const char need_positive[] = "need a positive integer"; /* no-op */
+
+/* FIXME: redundant error messages */
+static const char check_integer[] = "\"%s\" is not a integer";
+static const char need_integer[] = "need an integer";
+static const char check_boolean[] = "\"%s\" is not 0 or 1";
+static const char check_non_negative[] = "\"%s\" is not an integer >= 0";
+
static char *current_command;
static int command_listNum;
@@ -159,6 +169,56 @@ static CommandEntry *newCommandEntry(void)
return cmd;
}
+static void command_error_va(int fd, int error, const char *fmt, va_list args)
+{
+ if (current_command && fd != STDERR_FILENO) {
+ fdprintf(fd, "ACK [%i@%i] {%s} ",
+ (int)error, command_listNum, current_command);
+ vfdprintf(fd, fmt, args);
+ fdprintf(fd, "\n");
+ current_command = NULL;
+ } else {
+ fdprintf(STDERR_FILENO, "ACK [%i@%i] ",
+ (int)error, command_listNum);
+ vfdprintf(STDERR_FILENO, fmt, args);
+ fdprintf(STDERR_FILENO, "\n");
+ }
+}
+
+static int mpd_fprintf__ check_uint32(int fd, mpd_uint32 *dst,
+ const char *s, const char *fmt, ...)
+{
+ char *test;
+
+ *dst = strtoul(s, &test, 10);
+ if (*test != '\0') {
+ va_list args;
+ va_start(args, fmt);
+ command_error_va(fd, ACK_ERROR_ARG, fmt, args);
+ va_end(args);
+ return -1;
+ }
+ return 0;
+}
+
+static int mpd_fprintf__ check_int(int fd, int *dst,
+ const char *s, const char *fmt, ...)
+{
+ char *test;
+
+ *dst = strtol(s, &test, 10);
+ if (*test != '\0' ||
+ (fmt == check_boolean && *dst != 0 && *dst != 1) ||
+ (fmt == check_non_negative && *dst < 0)) {
+ va_list args;
+ va_start(args, fmt);
+ command_error_va(fd, ACK_ERROR_ARG, fmt, args);
+ va_end(args);
+ return -1;
+ }
+ return 0;
+}
+
static void addCommand(char *name,
int reqPermission,
int minargs,
@@ -191,32 +251,19 @@ static int handleTagTypes(int fd, int *permission, int argc, char *argv[])
static int handlePlay(int fd, int *permission, int argc, char *argv[])
{
int song = -1;
- char *test;
- if (argc == 2) {
- song = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "need a positive integer");
- return -1;
- }
- }
+ if (argc == 2 && check_int(fd, &song, argv[1], need_positive) < 0)
+ return -1;
return playPlaylist(fd, song, 0);
}
static int handlePlayId(int fd, int *permission, int argc, char *argv[])
{
int id = -1;
- char *test;
- if (argc == 2) {
- id = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "need a positive integer");
- return -1;
- }
- }
+ if (argc == 2 && check_int(fd, &id, argv[1], need_positive) < 0)
+ return -1;
+
return playPlaylistById(fd, id, 0);
}
@@ -238,13 +285,9 @@ static int handleCurrentSong(int fd, int *permission, int argc, char *argv[])
static int handlePause(int fd, int *permission, int argc, char *argv[])
{
if (argc == 2) {
- char *test;
- int pause_flag = strtol(argv[1], &test, 10);
- if (*test != '\0' || (pause_flag != 0 && pause_flag != 1)) {
- commandError(fd, ACK_ERROR_ARG, "\"%s\" is not 0 or 1",
- argv[1]);
+ int pause_flag;
+ if (check_int(fd, &pause_flag, argv[1], check_boolean, argv[1]) < 0)
return -1;
- }
return playerSetPause(fd, pause_flag);
}
return playerPause(fd);
@@ -348,26 +391,18 @@ static int handleAddId(int fd, int *permission, int argc, char *argv[])
static int handleDelete(int fd, int *permission, int argc, char *argv[])
{
int song;
- char *test;
- song = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need a positive integer");
+ if (check_int(fd, &song, argv[1], need_positive) < 0)
return -1;
- }
return deleteFromPlaylist(fd, song);
}
static int handleDeleteId(int fd, int *permission, int argc, char *argv[])
{
int id;
- char *test;
- id = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need a positive integer");
+ if (check_int(fd, &id, argv[1], need_positive) < 0)
return -1;
- }
return deleteFromPlaylistById(fd, id);
}
@@ -436,60 +471,38 @@ static int handleRename(int fd, int *permission, int argc, char *argv[])
static int handlePlaylistChanges(int fd, int *permission,
int argc, char *argv[])
{
- unsigned long version;
- char *test;
+ mpd_uint32 version;
- version = strtoul(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need a positive integer");
+ if (check_uint32(fd, &version, argv[1], need_positive) < 0)
return -1;
- }
return playlistChanges(fd, version);
}
static int handlePlaylistChangesPosId(int fd, int *permission,
int argc, char *argv[])
{
- unsigned long version;
- char *test;
+ mpd_uint32 version;
- version = strtoul(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need a positive integer");
+ if (check_uint32(fd, &version, argv[1], need_positive) < 0)
return -1;
- }
return playlistChangesPosId(fd, version);
}
static int handlePlaylistInfo(int fd, int *permission, int argc, char *argv[])
{
int song = -1;
- char *test;
- if (argc == 2) {
- song = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "need a positive integer");
- return -1;
- }
- }
+ if (argc == 2 && check_int(fd, &song, argv[1], need_positive) < 0)
+ return -1;
return playlistInfo(fd, song);
}
static int handlePlaylistId(int fd, int *permission, int argc, char *argv[])
{
int id = -1;
- char *test;
- if (argc == 2) {
- id = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "need a positive integer");
- return -1;
- }
- }
+ if (argc == 2 && check_int(fd, &id, argv[1], need_positive) < 0)
+ return -1;
return playlistId(fd, id);
}
@@ -597,14 +610,9 @@ static int handlePlaylistSearch(int fd, int *permission, int argc, char *argv[])
static int handlePlaylistDelete(int fd, int *permission, int argc, char *argv[]) {
char *playlist = argv[1];
int from;
- char *test;
- from = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[2]);
+ if (check_int(fd, &from, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return removeOneSongFromStoredPlaylistByPath(fd, playlist, from);
}
@@ -613,20 +621,11 @@ static int handlePlaylistMove(int fd, int *permission, int argc, char *argv[])
{
char *playlist = argv[1];
int from, to;
- char *test;
- from = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[2]);
+ if (check_int(fd, &from, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
- to = strtol(argv[3], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[3]);
+ if (check_int(fd, &to, argv[3], check_integer, argv[3]) < 0)
return -1;
- }
return moveSongInStoredPlaylistByPath(fd, playlist, from, to);
}
@@ -738,52 +737,36 @@ static int handleListAll(int fd, int *permission, int argc, char *argv[])
static int handleVolume(int fd, int *permission, int argc, char *argv[])
{
int change;
- char *test;
- change = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need an integer");
+ if (check_int(fd, &change, argv[1], need_integer) < 0)
return -1;
- }
return changeVolumeLevel(fd, change, 1);
}
static int handleSetVol(int fd, int *permission, int argc, char *argv[])
{
int level;
- char *test;
- level = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need an integer");
+ if (check_int(fd, &level, argv[1], need_integer) < 0)
return -1;
- }
return changeVolumeLevel(fd, level, 0);
}
static int handleRepeat(int fd, int *permission, int argc, char *argv[])
{
int status;
- char *test;
- status = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need an integer");
+ if (check_int(fd, &status, argv[1], need_integer) < 0)
return -1;
- }
return setPlaylistRepeatStatus(fd, status);
}
static int handleRandom(int fd, int *permission, int argc, char *argv[])
{
int status;
- char *test;
- status = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "need an integer");
+ if (check_int(fd, &status, argv[1], need_integer) < 0)
return -1;
- }
return setPlaylistRandomStatus(fd, status);
}
@@ -849,127 +832,67 @@ static int handleList(int fd, int *permission, int argc, char *argv[])
static int handleMove(int fd, int *permission, int argc, char *argv[])
{
- int from;
- int to;
- char *test;
+ int from, to;
- from = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[1]);
+ if (check_int(fd, &from, argv[1], check_integer, argv[1]) < 0)
return -1;
- }
- to = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[2]);
+ if (check_int(fd, &to, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return moveSongInPlaylist(fd, from, to);
}
static int handleMoveId(int fd, int *permission, int argc, char *argv[])
{
- int id;
- int to;
- char *test;
+ int id, to;
- id = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[1]);
+ if (check_int(fd, &id, argv[1], check_integer, argv[1]) < 0)
return -1;
- }
- to = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[2]);
+ if (check_int(fd, &to, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return moveSongInPlaylistById(fd, id, to);
}
static int handleSwap(int fd, int *permission, int argc, char *argv[])
{
- int song1;
- int song2;
- char *test;
+ int song1, song2;
- song1 = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[1]);
+ if (check_int(fd, &song1, argv[1], check_integer, argv[1]) < 0)
return -1;
- }
- song2 = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "\"%s\" is not a integer",
- argv[2]);
+ if (check_int(fd, &song2, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return swapSongsInPlaylist(fd, song1, song2);
}
static int handleSwapId(int fd, int *permission, int argc, char *argv[])
{
- int id1;
- int id2;
- char *test;
+ int id1, id2;
- id1 = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[1]);
+ if (check_int(fd, &id1, argv[1], check_integer, argv[1]) < 0)
return -1;
- }
- id2 = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG, "\"%s\" is not a integer",
- argv[2]);
+ if (check_int(fd, &id2, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return swapSongsInPlaylistById(fd, id1, id2);
}
static int handleSeek(int fd, int *permission, int argc, char *argv[])
{
- int song;
- int seek_time;
- char *test;
+ int song, seek_time;
- song = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[1]);
+ if (check_int(fd, &song, argv[1], check_integer, argv[1]) < 0)
return -1;
- }
- seek_time = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[2]);
+ if (check_int(fd, &seek_time, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return seekSongInPlaylist(fd, song, seek_time);
}
static int handleSeekId(int fd, int *permission, int argc, char *argv[])
{
- int id;
- int seek_time;
- char *test;
+ int id, seek_time;
- id = strtol(argv[1], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[1]);
+ if (check_int(fd, &id, argv[1], check_integer, argv[1]) < 0)
return -1;
- }
- seek_time = strtol(argv[2], &test, 10);
- if (*test != '\0') {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer", argv[2]);
+ if (check_int(fd, &seek_time, argv[2], check_integer, argv[2]) < 0)
return -1;
- }
return seekSongInPlaylistById(fd, id, seek_time);
}
@@ -1000,15 +923,9 @@ static int handlePassword(int fd, int *permission, int argc, char *argv[])
static int handleCrossfade(int fd, int *permission, int argc, char *argv[])
{
int xfade_time;
- char *test;
- xfade_time = strtol(argv[1], &test, 10);
- if (*test != '\0' || xfade_time < 0) {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer >= 0", argv[1]);
+ if (check_int(fd, &xfade_time, argv[1], check_non_negative, argv[1]) < 0)
return -1;
- }
-
setPlayerCrossFade(xfade_time);
return 0;
@@ -1017,30 +934,18 @@ static int handleCrossfade(int fd, int *permission, int argc, char *argv[])
static int handleEnableDevice(int fd, int *permission, int argc, char *argv[])
{
int device;
- char *test;
- device = strtol(argv[1], &test, 10);
- if (*test != '\0' || device < 0) {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer >= 0", argv[1]);
+ if (check_int(fd, &device, argv[1], check_non_negative, argv[1]) < 0)
return -1;
- }
-
return enableAudioDevice(fd, device);
}
static int handleDisableDevice(int fd, int *permission, int argc, char *argv[])
{
int device;
- char *test;
- device = strtol(argv[1], &test, 10);
- if (*test != '\0' || device < 0) {
- commandError(fd, ACK_ERROR_ARG,
- "\"%s\" is not a integer >= 0", argv[1]);
+ if (check_int(fd, &device, argv[1], check_non_negative, argv[1]) < 0)
return -1;
- }
-
return disableAudioDevice(fd, device);
}
@@ -1331,19 +1236,6 @@ mpd_fprintf_ void commandError(int fd, int error, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
-
- if (current_command && fd != STDERR_FILENO) {
- fdprintf(fd, "ACK [%i@%i] {%s} ",
- (int)error, command_listNum, current_command);
- vfdprintf(fd, fmt, args);
- fdprintf(fd, "\n");
- current_command = NULL;
- } else {
- fdprintf(STDERR_FILENO, "ACK [%i@%i] ",
- (int)error, command_listNum);
- vfdprintf(STDERR_FILENO, fmt, args);
- fdprintf(STDERR_FILENO, "\n");
- }
-
+ command_error_va(fd, error, fmt, args);
va_end(args);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 06:06:17 +0000