changeset 1083:8f0a577dcdd3

blkid cleanup: more whitespace (including fixing a strange unindented if block), convert strange fstype inclusion to OLDTOY(), use "<1" arg so calling with no arguments doesn't hang, convert typedef to normal struct.
author Rob Landley <rob@landley.net>
date Mon, 07 Oct 2013 15:04:09 -0500
parents b895518fdc40
children 4f30bf230196
files toys/pending/blkid.c
diffstat 1 files changed, 56 insertions(+), 77 deletions(-) [+]
line wrap: on
line diff
--- a/toys/pending/blkid.c	Mon Oct 07 14:37:41 2013 -0500
+++ b/toys/pending/blkid.c	Mon Oct 07 15:04:09 2013 -0500
@@ -4,7 +4,8 @@
  *
  * See ftp://ftp.kernel.org/pub/linux/utils/util-linux/v2.24/libblkid-docs/api-index-full.html
 
-USE_BLKID(NEWTOY(blkid, NULL, TOYFLAG_BIN))
+USE_BLKID(NEWTOY(blkid, "<1", TOYFLAG_BIN))
+USE_BLKID(OLDTOY(fstype, blkid, "<1", TOYFLAG_BIN))
 
 config BLKID
   bool "blkid"
@@ -12,8 +13,8 @@
   help
     usage: blkid [block device...]
     Prints type, label and UUID of filesystem.
+*/
 
-*/
 #define FOR_blkid
 #include "toys.h"
 
@@ -25,15 +26,14 @@
 /* may need to check endianess for C2I */
 #define C2I(a,b,c,d) (a|(b<<8)|(c<<16)|(d<<24))
 
-typedef struct fs_info{
+struct fs_info {
   unsigned uuid_off;
   unsigned lab_off;
   short uuid_t;
   short lab_len;
-}fs_info_t;
+};
 
-//#define SET_FS(t) (fs_info_t){t##_UUID,t##_LABEL,t##_UUID_T,t##_LABEL_SZ}
-#define SET_FS(t) (fs_info_t)t##_INFO
+#define SET_FS(t) (struct fs_info)t##_INFO
 
 #define ADFS_MAGIC			0xadf5
 #define ADFS_TYPE			short
@@ -120,18 +120,20 @@
 #define XFS_MAGIC			C2I('X','F','S','B')
 #define XFS_INFO			{32,108,16,12}
 
-#if (CFG_BLKID)
-char *toutf8(unsigned short * ws){	/* hack for NTFS utf16 */
+/* hack for NTFS utf16 */
+char *toutf8(unsigned short *ws)
+{
   static char buf[16];
   int i=0;
+
   while((buf[i++]=*ws++));
   return buf;
 }
-#endif
 
 /* TODO if no args use proc/partitions */
-void do_blkid(int fd, char *name){	
-  fs_info_t fs;
+void do_blkid(int fd, char *name)
+{
+  struct fs_info fs;
   char *fstype;
   unsigned char buf[66560];  /*toybuf is only 4096, could rework logic*/
   int sb_read;
@@ -139,102 +141,79 @@
   sb_read = read(fd, &buf, sizeof(buf));
   if (sb_read < 1) return;
 
-  if MATCH(buf,ADFS){
+  if MATCH(buf,ADFS) {
     fstype="adfs";
     if (CFG_BLKID) fs=SET_FS(ADFS);
-  }else if MATCH(buf,BFS){
+  } else if MATCH(buf,BFS) {
     fstype="bfs";
     if (CFG_BLKID) fs=SET_FS(BFS);
-  }else if MATCH(buf,CRAMFS){
+  } else if MATCH(buf,CRAMFS) {
     fstype="cramfs";
     if (CFG_BLKID) fs=SET_FS(CRAMFS);
-  }else if MATCH3(buf,EXT){
+  } else if MATCH3(buf,EXT) {
     fstype=(buf[EXT3_BYTE]&BIT(2))?((buf[EXT4_BYTE]&BIT(6))?"ext4":"ext3"):"ext2";
     if (CFG_BLKID) fs=SET_FS(EXT);
-  }else if MATCH(buf,F2FS){
+  } else if MATCH(buf,F2FS) {
     fstype="f2fs";
     if (CFG_BLKID) fs=SET_FS(F2FS);
-  }else if MATCH(buf,NILFS){
+  } else if MATCH(buf,NILFS) {
     fstype="nilfs";
     if (CFG_BLKID) fs=SET_FS(NILFS);
-  }else if MATCH(buf,NTFS){
+  } else if MATCH(buf,NTFS) {
     fstype="ntfs";
     if (CFG_BLKID) fs=SET_FS(NTFS);
-  }else if MATCH(buf,XIAFS){
+  } else if MATCH(buf,XIAFS) {
     fstype="xiafs";
     if (CFG_BLKID) fs=SET_FS(XIAFS);
 /*below here would require more than 1 toybuf*/
-  }else if MATCH(buf,REISER){
+  } else if MATCH(buf,REISER) {
     fstype="reiserfs";
     if (CFG_BLKID) fs=SET_FS(REISER);
-  }else if MATCH(buf,JFS){
+  } else if MATCH(buf,JFS) {
     fstype="jfs";
     if (CFG_BLKID) fs=SET_FS(JFS);
-  }else if MATCH(buf,BTRFS){
+  } else if MATCH(buf,BTRFS) {
     fstype="btrfs";
     if (CFG_BLKID) fs=SET_FS(BTRFS);
-  }else if MATCH(buf,REISERB){
+  } else if MATCH(buf,REISERB) {
     fstype="reiserfs";
     if (CFG_BLKID) fs=SET_FS(REISERB);
-  }else return;
+  } else return;
 
-if (CFG_BLKID  && !strncmp("blkid",toys.which->name,5) ){
-  printf("%s:",name);
-  if ( fs.lab_len > 0 )
-    printf(" LABEL=\"%.*s\"", fs.lab_len, (char *)&buf[fs.lab_off]);
-  else if ( fs.lab_len < 0 )
-    printf(" LABEL=\"%.*s\"", -fs.lab_len,
-      toutf8((unsigned short *)&buf[fs.lab_off]));
-  if ( fs.uuid_off > 0 ){
-    if ( fs.uuid_t == 16 )
-      printf(" UUID=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
-      "%02x%02x%02x%02x%02x%02x\"",
-      buf[fs.uuid_off], buf[fs.uuid_off+1],
-      buf[fs.uuid_off+2], buf[fs.uuid_off+3],
-      buf[fs.uuid_off+4], buf[fs.uuid_off+5],
-      buf[fs.uuid_off+6], buf[fs.uuid_off+7],
-      buf[fs.uuid_off+8], buf[fs.uuid_off+9],
-      buf[fs.uuid_off+10], buf[fs.uuid_off+11],
-      buf[fs.uuid_off+12], buf[fs.uuid_off+13],
-      buf[fs.uuid_off+14], buf[fs.uuid_off+15]);
-    if ( fs.uuid_t == 8 )
-      printf(" UUID=\"%02X%02X%02X%02X%02X%02X%02X%02X\"",
-      buf[fs.uuid_off+7], buf[fs.uuid_off+6],
-      buf[fs.uuid_off+5], buf[fs.uuid_off+4],
-      buf[fs.uuid_off+3], buf[fs.uuid_off+2],
-      buf[fs.uuid_off+1], buf[fs.uuid_off]);
-  }
-  printf(" TYPE=\"%s\"",fstype);
-}else /* fstype */
-  write(1,fstype,strlen(fstype));	/* avoid printf overhead in fstype */
+  if (CFG_BLKID && !strncmp("blkid",toys.which->name,5) ) {
+    printf("%s:",name);
+    if (fs.lab_len > 0)
+      printf(" LABEL=\"%.*s\"", fs.lab_len, (char *)&buf[fs.lab_off]);
+    else if (fs.lab_len < 0)
+      printf(" LABEL=\"%.*s\"", -fs.lab_len,
+        toutf8((unsigned short *)&buf[fs.lab_off]));
+    if (fs.uuid_off > 0) {
+      if (fs.uuid_t == 16)
+        printf(" UUID=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
+        "%02x%02x%02x%02x%02x%02x\"",
+        buf[fs.uuid_off], buf[fs.uuid_off+1],
+        buf[fs.uuid_off+2], buf[fs.uuid_off+3],
+        buf[fs.uuid_off+4], buf[fs.uuid_off+5],
+        buf[fs.uuid_off+6], buf[fs.uuid_off+7],
+        buf[fs.uuid_off+8], buf[fs.uuid_off+9],
+        buf[fs.uuid_off+10], buf[fs.uuid_off+11],
+        buf[fs.uuid_off+12], buf[fs.uuid_off+13],
+        buf[fs.uuid_off+14], buf[fs.uuid_off+15]);
+      if (fs.uuid_t == 8)
+        printf(" UUID=\"%02X%02X%02X%02X%02X%02X%02X%02X\"",
+        buf[fs.uuid_off+7], buf[fs.uuid_off+6],
+        buf[fs.uuid_off+5], buf[fs.uuid_off+4],
+        buf[fs.uuid_off+3], buf[fs.uuid_off+2],
+        buf[fs.uuid_off+1], buf[fs.uuid_off]);
+    }
+    printf(" TYPE=\"%s\"",fstype);
+
+  /* avoid printf overhead in fstype */
+  } else write(1,fstype,strlen(fstype));
   putchar('\n');
 }
 
-#if (CFG_BLKID)
 void blkid_main(void)
 {
   loopfiles(toys.optargs, do_blkid);
 }
-#endif
-
-
-/* fstype.c - Prints type of filesystem(s).
- *
- * Copyright 2013 Brad Conroy <bconroy@uis.edu>
-
-USE_FSTYPE(NEWTOY(fstype, NULL, TOYFLAG_BIN))
-
-config FSTYPE
-  bool "fstype"
-  default n
-  help
-    usage: fstype [block device...]
-    Prints type of filesystem.
-*/
-#define FOR_fstype
-#include "toys.h"
-void do_blkid(int fd, char *name);
-void fstype_main(void)
-{
-  loopfiles(toys.optargs, do_blkid);
-}