libnjb 2.2.7

setowner.c
#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;
}