/**
* gnutls_openpgp_crt_print:
* @cert: The structure to be printed
* @format: Indicate the format to use
* @out: Newly allocated datum with (0) terminated string.
*
* This function will pretty print an OpenPGP certificate, suitable
* for display to a human.
*
* The format should be (0) for future compatibility.
*
* The output @out needs to be deallocate using gnutls_free().
*
* Returns: %GNUTLS_E_SUCCESS on success, or an error code.
**/
int
gnutls_openpgp_crt_print(gnutls_openpgp_crt_t cert,
gnutls_certificate_print_formats_t format,
gnutls_datum_t * out)
{
gnutls_buffer_st str;
int ret;
_gnutls_buffer_init(&str);
if (format == GNUTLS_CRT_PRINT_ONELINE)
print_oneline(&str, cert);
else if (format == GNUTLS_CRT_PRINT_COMPACT) {
print_oneline(&str, cert);
_gnutls_buffer_append_data(&str, "\n", 1);
print_key_fingerprint(&str, cert);
} else {
_gnutls_buffer_append_str(&str,
_
("OpenPGP Certificate Information:\n"));
print_cert(&str, cert);
}
_gnutls_buffer_append_data(&str, "\0", 1);
ret = _gnutls_buffer_to_datum(&str, out);
if (out->size > 0)
out->size--;
return ret;
}
/*
Print a pair of tag name-value pairs along each other in two columns or
each on a line if that is not sensible.
This takes a given length (in columns) into account, not just bytes.
If that length would be computed taking grapheme clusters into account, things
could be fine for the whole world of Unicode. So far we ride only on counting
possibly multibyte characters (unless mpg123_strlen() got adapted meanwhile).
*/
static void print_pair
(
FILE* out /* Output stream. */
, const int *climit /* Maximum width of columns (two values). */
, const mpg123_string *tag /* array of tag value strings */
, const size_t *len /* array of character/column lengths */
, enum tagcode f0, enum tagcode f1 /* field indices for column 0 and 1 */
){
/* Two-column printout if things match, dumb printout otherwise. */
if( tag[f0].fill && tag[f1].fill
&& len[f0] <= (size_t)climit[0] && len[f1] <= (size_t)climit[1] )
{
char cfmt[35]; /* "%s:%-XXXs%-XXXs %s:%-XXXs%-XXXs\n" plus one extra null from snprintf */
int chardiff[2];
size_t bytelen;
/* difference between character length and byte length */
bytelen = strlen(tag[f0].p);
chardiff[0] = len[f0] < bytelen ? bytelen-len[f0] : 0;
bytelen = strlen(tag[f1].p);
chardiff[1] = len[f1] < bytelen ? bytelen-len[f1] : 0;
/* Two-column format string with added padding for multibyte chars. */
snprintf( cfmt, sizeof(cfmt)-1, "%%s:%%-%ds%%-%ds %%s:%%-%ds%%-%ds\n"
, 1+namelen[0]-strlen(name[f0]), climit[0]+chardiff[0]
, 1+namelen[1]-strlen(name[f1]), climit[1]+chardiff[1] );
/* Actual printout of name and value pairs. */
fprintf(out, cfmt, name[f0], " ", tag[f0].p, name[f1], " ", tag[f1].p);
}
else
{
print_oneline(out, tag, f0, FALSE);
print_oneline(out, tag, f1, FALSE);
}
}
/**
* gnutls_openpgp_crt_print:
* @cert: The structure to be printed
* @format: Indicate the format to use
* @out: Newly allocated datum with zero terminated string.
*
* This function will pretty print an OpenPGP certificate, suitable
* for display to a human.
*
* The format should be zero for future compatibility.
*
* The output @out needs to be deallocate using gnutls_free().
*
* Returns: %GNUTLS_E_SUCCESS on success, or an error code.
**/
int
gnutls_openpgp_crt_print (gnutls_openpgp_crt_t cert,
gnutls_certificate_print_formats_t format,
gnutls_datum_t * out)
{
gnutls_buffer_st str;
_gnutls_buffer_init (&str);
if (format == GNUTLS_CRT_PRINT_ONELINE)
print_oneline (&str, cert);
else
{
_gnutls_buffer_append_str (&str,
_("OpenPGP Certificate Information:\n"));
print_cert (&str, cert);
}
_gnutls_buffer_append_data (&str, "\0", 1);
out->data = str.data;
out->size = strlen (str.data);
return 0;
}
/* Print tags... limiting the UTF-8 to ASCII, if necessary. */
void print_id3_tag(mpg123_handle *mh, int long_id3, FILE *out)
{
char genre_from_v1 = 0;
enum tagcode ti;
mpg123_string tag[FIELDS];
size_t len[FIELDS];
mpg123_id3v1 *v1;
mpg123_id3v2 *v2;
/* no memory allocated here, so return is safe */
for(ti=0; ti<FIELDS; ++ti){ len[ti]=0; mpg123_init_string(&tag[ti]); }
/* extract the data */
mpg123_id3(mh, &v1, &v2);
/* Only work if something there... */
if(v1 == NULL && v2 == NULL) return;
if(v2 != NULL) /* fill from ID3v2 data */
{
len[TITLE] = transform(&tag[TITLE], v2->title);
len[ARTIST] = transform(&tag[ARTIST], v2->artist);
len[ALBUM] = transform(&tag[ALBUM], v2->album);
len[COMMENT] = transform(&tag[COMMENT], v2->comment);
len[YEAR] = transform(&tag[YEAR], v2->year);
len[GENRE] = transform(&tag[GENRE], v2->genre);
}
if(v1 != NULL) /* fill gaps with ID3v1 data */
{
/* I _could_ skip the recalculation of fill ... */
id3_gap(&tag[TITLE], 30, v1->title, &len[TITLE]);
id3_gap(&tag[ARTIST], 30, v1->artist, &len[ARTIST]);
id3_gap(&tag[ALBUM], 30, v1->album, &len[ALBUM]);
id3_gap(&tag[COMMENT], 30, v1->comment, &len[COMMENT]);
id3_gap(&tag[YEAR], 4, v1->year, &len[YEAR]);
/*
genre is special... v1->genre holds an index, id3v2 genre may contain indices in textual form and raw textual genres...
*/
if(!tag[GENRE].fill)
{
if(tag[GENRE].size >= 31 || mpg123_resize_string(&tag[GENRE],31))
{
if(v1->genre <= genre_count)
{
strncpy(tag[GENRE].p, genre_table[v1->genre], 30);
}
else
{
strncpy(tag[GENRE].p,"Unknown",30);
}
tag[GENRE].p[30] = 0;
/* V1 was plain ASCII, so strlen is fine. */
len[GENRE] = strlen(tag[GENRE].p);
tag[GENRE].fill = len[GENRE] + 1;
genre_from_v1 = 1;
}
}
}
if(tag[GENRE].fill && !genre_from_v1)
{
/*
id3v2.3 says (id)(id)blabla and in case you want ot have (blabla) write ((blabla)
also, there is
(RX) Remix
(CR) Cover
id3v2.4 says
"one or several of the ID3v1 types as numerical strings"
or define your own (write strings), RX and CR
Now I am very sure that I'll encounter hellishly mixed up id3v2 frames, so try to parse both at once.
*/
mpg123_string tmp;
mpg123_init_string(&tmp);
debug1("interpreting genre: %s\n", tag[GENRE].p);
if(mpg123_copy_string(&tag[GENRE], &tmp))
{
size_t num = 0;
size_t nonum = 0;
size_t i;
enum { nothing, number, outtahere } state = nothing;
tag[GENRE].fill = 0; /* going to be refilled */
/* number\n -> id3v1 genre */
/* (number) -> id3v1 genre */
/* (( -> ( */
for(i = 0; i < tmp.fill; ++i)
{
debug1("i=%lu", (unsigned long) i);
switch(state)
{
case nothing:
nonum = i;
if(tmp.p[i] == '(')
{
num = i+1; /* number starting as next? */
state = number;
debug1("( before number at %lu?", (unsigned long) num);
}
/* you know an encoding where this doesn't work? */
else if(tmp.p[i] >= '0' && tmp.p[i] <= '9')
{
num = i;
state = number;
debug1("direct number at %lu", (unsigned long) num);
}
else state = outtahere;
break;
case number:
/* fake number alert: (( -> ( */
if(tmp.p[i] == '(')
{
nonum = i;
state = outtahere;
debug("no, it was ((");
}
else if(tmp.p[i] == ')' || tmp.p[i] == '\n' || tmp.p[i] == 0)
{
if(i-num > 0)
{
/* we really have a number */
int gid;
char* genre = "Unknown";
tmp.p[i] = 0;
gid = atoi(tmp.p+num);
/* get that genre */
if(gid >= 0 && gid <= genre_count) genre = genre_table[gid];
debug1("found genre: %s", genre);
if(tag[GENRE].fill) mpg123_add_string(&tag[GENRE], ", ");
mpg123_add_string(&tag[GENRE], genre);
nonum = i+1; /* next possible stuff */
state = nothing;
debug1("had a number: %i", gid);
}
else
{
/* wasn't a number, nonum is set */
state = outtahere;
debug("no (num) thing...");
}
}
else if(!(tmp.p[i] >= '0' && tmp.p[i] <= '9'))
{
/* no number at last... */
state = outtahere;
debug("nothing numeric here");
}
else
{
debug("still number...");
}
break;
default: break;
}
if(state == outtahere) break;
}
if(nonum < tmp.fill-1)
{
if(tag[GENRE].fill) mpg123_add_string(&tag[GENRE], ", ");
mpg123_add_string(&tag[GENRE], tmp.p+nonum);
}
/* Do not like that ... assumes plain ASCII ... */
len[GENRE] = strlen(tag[GENRE].p);
}
mpg123_free_string(&tmp);
}
if(long_id3)
{
fprintf(out,"\n");
/* print id3v2 */
print_oneline(out, tag, TITLE, TRUE);
print_oneline(out, tag, ARTIST, TRUE);
print_oneline(out, tag, ALBUM, TRUE);
print_oneline(out, tag, YEAR, TRUE);
print_oneline(out, tag, GENRE, TRUE);
print_oneline(out, tag, COMMENT, TRUE);
fprintf(out,"\n");
}
else
{
/* We are trying to be smart here and conserve some vertical space.
So we will skip tags not set, and try to show them in two parallel
columns if they are short, which is by far the most common case. */
int linelimit;
/* Overhead is Name + ": " and also plus " " for right column. */
const int overhead[2] = { namelen[0]+2, namelen[1]+4 };
int climit[2];
/* Adapt formatting width to terminal if possible. */
linelimit = term_width(fileno(out));
if(linelimit < 0)
linelimit=overhead[0]+30+overhead[1]+30; /* the old style, based on ID3v1 */
if(linelimit > 200)
linelimit = 200; /* Not too wide. Also for format string safety. */
/* Divide the space between the two columns, not wasting any. */
climit[1] = linelimit/2-overhead[0];
climit[0] = linelimit-linelimit/2-overhead[1];
debug3("linelimits: %i < %i | %i >", linelimit, climit[0], climit[1]);
if(climit[0] <= 0 || climit[1] <= 0)
{
/* Ensure disabled column printing, no play with signedness in comparisons. */
climit[0] = 0;
climit[1] = 0;
}
fprintf(out,"\n"); /* Still use one separator line. Too ugly without. */
print_pair(out, climit, tag, len, TITLE, ARTIST);
print_pair(out, climit, tag, len, COMMENT, ALBUM );
print_pair(out, climit, tag, len, YEAR, GENRE );
}
for(ti=0; ti<FIELDS; ++ti) mpg123_free_string(&tag[ti]);
if(v2 != NULL && APPFLAG(MPG123APP_LYRICS))
{
/* find and print texts that have USLT IDs */
size_t i;
for(i=0; i<v2->texts; ++i)
{
if(!memcmp(v2->text[i].id, "USLT", 4))
{
/* split into lines, ensure usage of proper local line end */
size_t a=0;
size_t b=0;
char lang[4]; /* just a 3-letter ASCII code, no fancy encoding */
mpg123_string innline;
mpg123_string outline;
mpg123_string *uslt = &v2->text[i].text;
memcpy(lang, &v2->text[i].lang, 3);
lang[3] = 0;
printf("Lyrics begin, language: %s; %s\n\n", lang, v2->text[i].description.fill ? v2->text[i].description.p : "");
mpg123_init_string(&innline);
mpg123_init_string(&outline);
while(a < uslt->fill)
{
b = a;
while(b < uslt->fill && uslt->p[b] != '\n' && uslt->p[b] != '\r') ++b;
/* Either found end of a line or end of the string (null byte) */
mpg123_set_substring(&innline, uslt->p, a, b-a);
transform(&outline, &innline);
printf(" %s\n", outline.p);
if(uslt->p[b] == uslt->fill) break; /* nothing more */
/* Swallow CRLF */
if(uslt->fill-b > 1 && uslt->p[b] == '\r' && uslt->p[b+1] == '\n') ++b;
a = b + 1; /* next line beginning */
}
mpg123_free_string(&innline);
mpg123_free_string(&outline);
printf("\nLyrics end.\n");
}
}
}
}
