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mpd_add_to_playlist.c (2751B)

      1 #include <mpd/client.h>
      2 #include <stdio.h>
      3 #include <stdlib.h>
      4 #include <string.h>
      5 // #define DEBUG
      6 #ifdef DEBUG
      7 #define D(x)                                                                   \
      8   do {                                                                         \
      9     x;                                                                         \
     10   } while (0)
     11 #else
     12 #define D(x)                                                                   \
     13   do {                                                                         \
     14   } while (0)
     15 #endif
     16 #define DEFAULT_HOST "localhost"
     17 #define DEFAULT_PORT 6600
     18 struct mpd_connection *conn() {
     19   // Read host from environment variable, use default if not set
     20   const char *host = getenv("MPD_HOST");
     21   if (host == NULL || strlen(host) == 0) {
     22     host = DEFAULT_HOST;
     23   }
     24   D(printf("Using host: %s\n", host));
     25 
     26   // Read port from environment variable, use default if not set
     27   unsigned port = DEFAULT_PORT;
     28   const char *port_str = getenv("MPD_PORT");
     29   if (port_str != NULL && strlen(port_str) > 0) {
     30     port = (unsigned)atoi(port_str);
     31   }
     32   D(printf("Using port: %u\n", port));
     33 
     34   D(printf("%s %s:%u\n", "Connecting to", host, port));
     35 
     36   struct mpd_connection *c = mpd_connection_new(host, port, 0);
     37   if (c == NULL) {
     38     fprintf(stderr, "Failed to create MPD connection object\n");
     39     return NULL;
     40   }
     41 
     42   if (mpd_connection_get_error(c) != MPD_ERROR_SUCCESS) {
     43     fprintf(stderr, "Error connecting to MPD (%s:%u): %s\n", host, port,
     44             mpd_connection_get_error_message(c));
     45     mpd_connection_free(c);
     46     return NULL;
     47   }
     48 #ifdef PASS
     49   const char *pass = PASS;
     50   if (mpd_run_password(c, pass) == false) {
     51     fprintf(stderr, "Bad password\n");
     52     mpd_connection_free(c);
     53     return NULL;
     54   }
     55 #endif
     56   D(printf("%s %s:%u\n", "Connected to", host, port));
     57   return c;
     58 }
     59 int main(int argc, char *argv[]) {
     60   // Check for playlist name argument
     61   if (argc < 2) {
     62     printf("Usage: %s PLAYLIST_NAME\n", argv[0]);
     63     return 1;
     64   }
     65 
     66   const char *playlist = argv[1];
     67   D(printf("Using playlist: %s\n", playlist));
     68 
     69   struct mpd_connection *c = conn();
     70   if (c == NULL)
     71     return -1;
     72 
     73   struct mpd_song *curr = mpd_run_current_song(c);
     74   if (curr == NULL) {
     75     printf("No song is currently playing\n");
     76     mpd_connection_free(c);
     77     return -1;
     78   }
     79 
     80   const char *curr_uri = mpd_song_get_uri(curr);
     81   D(printf("Currently playing: %s\n", curr_uri));
     82 
     83   if (mpd_run_playlist_add(c, playlist, curr_uri)) {
     84     printf("%s %s %s %s\n", "Added", curr_uri, "to playlist", playlist);
     85   } else {
     86     printf("%s\n", "Some error");
     87     mpd_song_free(curr);
     88     mpd_connection_free(c);
     89     return -1;
     90   }
     91   // Free resources
     92   mpd_song_free(curr);
     93   mpd_connection_free(c);
     94 
     95   return 0;
     96 }