libnjb 2.2.6
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#include "common.h" #include <string.h> static char *prompt (const char *prompt, char *buffer, size_t bufsz, int required) { char *cp, *bp; while (1) { fprintf(stdout, "%s> ", prompt); if ( fgets(buffer, bufsz, stdin) == NULL ) { if (ferror(stdin)) { perror("fgets"); } else { fprintf(stderr, "EOF on stdin\n"); } return NULL; } cp = strrchr(buffer, '\n'); if ( cp != NULL ) *cp= '\0'; bp = buffer; while ( bp != cp ) { if ( *bp != ' ' ) return bp; bp++; } if (! required) return bp; } } int main (int argc, char **argv) { njb_t njbs[NJB_MAX_DEVICES], *njb; int n, opt, debug; char newowner[80]; char *pown; char *ownerstring; extern char *optarg; char *lang; debug = 0; while ( (opt = getopt(argc, argv, "D:")) != -1 ) { switch (opt) { case 'D': debug= atoi(optarg); break; default: fprintf(stderr, "usage: %s [ -D debuglvl ]\n", argv[0]); return 1; } } if ( debug ) NJB_Set_Debug(debug); /* * Check environment variables $LANG and $LC_CTYPE * to see if we want to support UTF-8 unicode * $LANG = "xx_XX.UTF-8" or $LC_CTYPE = "?" * trigger unicode support. */ lang = getenv("LANG"); if (lang != NULL) { if (strlen(lang) > 5) { if (!strcmp(&lang[strlen(lang)-5], "UTF-8")) { NJB_Set_Unicode(NJB_UC_UTF8); } } } if (NJB_Discover(njbs, 0, &n) == -1) { fprintf(stderr, "could not locate any jukeboxes\n"); return 1; } if ( n == 0 ) { fprintf(stderr, "No NJB devices found\n"); return 1; } njb = njbs; if ( NJB_Open(njb) == -1 ) { NJB_Error_Dump(njb,stderr); return 1; } if ( (pown = prompt("New ownerstring", newowner, 80, 1)) == NULL ) return 1; if ( NJB_Set_Owner_String (njb, newowner) == -1 ) { NJB_Error_Dump(njb,stderr); return 1; } ownerstring = NJB_Get_Owner_String(njb); printf("New owner string: %s\n", ownerstring); free(ownerstring); NJB_Close(njb); return 0; }