shithub: libtags

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flac: skip over cover image properly

--- a/flac.c

+++ b/flac.c

@@ -46,12 +46,17 @@

 			mime = ctx->buf+20;

 			if(n >= sz || n >= ctx->bufsz-1 || ctx->read(ctx, mime, n) != n)

 				return -1;

+			sz -= n;

 			mime[n] = 0;

 			ctx->read(ctx, d, 4); /* description */

+			sz -= 4;

 			offset = beuint(d) + ctx->seek(ctx, 0, 1) + 20;

 			ctx->read(ctx, d, 20);

+			sz -= 20;

 			n = beuint(&d[16]);

 			tagscallcb(ctx, Timage, "", mime, offset, n, nil);

+			if(ctx->seek(ctx, sz, 1) <= 0)

+				return -1;

 		}else if((d[0] & 0x7f) == 4){ /* 4 = vorbis comment */

 			int i, numtags, tagsz, vensz;

 			char *k, *v;