From: drh <drh@noemail.net>
Date: Wed, 29 Oct 2014 18:20:18 +0000 (+0000)
Subject: Fix the %c format character in sqlite3VXPrintf() so that it correctly
X-Git-Tag: version-3.8.8~204
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=af8f513f9d9414b8aae11f9470e4a8789e7cf74e;p=thirdparty%2Fsqlite.git

Fix the %c format character in sqlite3VXPrintf() so that it correctly
handles precisions larger than 70.

FossilOrigin-Name: 08a27440f19b7fc884464832e6105af1bf008172
---

diff --git a/manifest b/manifest
index 209baf8beb..c8c7eafdd4 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C In\sthe\sOP_Column\sopcode,\swhen\sextracting\sa\sfield\sthat\sis\spast\sthe\send\sof\na\sshort\srecord\s(because\sthe\srow\swas\soriginally\sinserted\sprior\sto\sALTER\sTABLE\nADD\sCOLUMN)\sthen\smake\ssure\sthe\soutput\sregister\sis\sfully\sNULL\sand\sdoes\snot\ncontain\sleftover\sflags\s(such\sas\sMEM_Ephem)\sfrom\sits\sprevious\suse.\nFix\sfor\sticket\s[43107840f1c02].
-D 2014-10-29T00:58:38.898
+C Fix\sthe\s%c\sformat\scharacter\sin\ssqlite3VXPrintf()\sso\sthat\sit\scorrectly\nhandles\sprecisions\slarger\sthan\s70.
+D 2014-10-29T18:20:18.932
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in cf57f673d77606ab0f2d9627ca52a9ba1464146a
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -223,7 +223,7 @@ F src/pcache.h 9b559127b83f84ff76d735c8262f04853be0c59a
 F src/pcache1.c e412cb585f777c840ddce0500eddc5c6043c2bb5
 F src/pragma.c 3f3e959390a10c0131676f0e307acce372777e0f
 F src/prepare.c b7b7bf020bd4c962f7c8aed5a3c542c7dfe9f9c7
-F src/printf.c c31012ac23e458081df4a32634b60424e0cdfaf3
+F src/printf.c 10a2493593c8e4a538915cd3674bd7a67f70c488
 F src/random.c ba2679f80ec82c4190062d756f22d0c358180696
 F src/resolve.c 4965007d6497b6a4d7a6d98751cc39712885f952
 F src/rowset.c eccf6af6d620aaa4579bd3b72c1b6395d9e9fa1e
@@ -232,7 +232,7 @@ F src/shell.c 282f8f5278e0c78eb442217531172ec9e1538796
 F src/sqlite.h.in 737b7dd0f3f81fe183646d22828b39f85ef3e68c
 F src/sqlite3.rc 992c9f5fb8285ae285d6be28240a7e8d3a7f2bad
 F src/sqlite3ext.h 17d487c3c91b0b8c584a32fbeb393f6f795eea7d
-F src/sqliteInt.h 90519c3b3e8ee90adfce013234c4bd07275d77b5
+F src/sqliteInt.h 4f86ac648ea398c1bb3db036062934cde257ea23
 F src/sqliteLimit.h 164b0e6749d31e0daa1a4589a169d31c0dec7b3d
 F src/status.c 81712116e826b0089bb221b018929536b2b5406f
 F src/table.c f142bba7903e93ca8d113a5b8877a108ad1a27dc
@@ -772,7 +772,7 @@ F test/permutations.test cef25f5e8499a15846eccd06785f17f4180407ab
 F test/pragma.test 19d0241a007bcdd77fc2606ec60fc60357e7fc8b
 F test/pragma2.test aea7b3d82c76034a2df2b38a13745172ddc0bc13
 F test/printf.test ec9870c4dce8686a37818e0bf1aba6e6a1863552
-F test/printf2.test bed79b4c3e5da08ba88ad637c0bf62586843cfb1
+F test/printf2.test b4acd4bf8734243257f01ddefa17c4fb090acc8a
 F test/progress.test a282973d1d17f08071bc58a77d6b80f2a81c354d
 F test/ptrchng.test ef1aa72d6cf35a2bbd0869a649b744e9d84977fc
 F test/queryonly.test 5f653159e0f552f0552d43259890c1089391dcca
@@ -1209,7 +1209,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P f84af4adcc34d7a4c72027bf5b038a1a45a4c307
-R c2870e402bb1970025fb678b8c13d710
+P 24780f8ddc1683fc62180e6961dc6bfe1168f4df
+R c12283d048765bdbe52bad70443f70c1
 U drh
-Z 3a55744e14b55dcc32cb71f070af972c
+Z 8aeb3112f50d033e0580c4400e41dd66
diff --git a/manifest.uuid b/manifest.uuid
index ea9bca8740..bd48a08b43 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-24780f8ddc1683fc62180e6961dc6bfe1168f4df
\ No newline at end of file
+08a27440f19b7fc884464832e6105af1bf008172
\ No newline at end of file
diff --git a/src/printf.c b/src/printf.c
index f000da7fcc..85d237f0e7 100644
--- a/src/printf.c
+++ b/src/printf.c
@@ -212,7 +212,7 @@ void sqlite3VXPrintf(
   const et_info *infop;      /* Pointer to the appropriate info structure */
   char *zOut;                /* Rendering buffer */
   int nOut;                  /* Size of the rendering buffer */
-  char *zExtra;              /* Malloced memory used by some conversion */
+  char *zExtra = 0;          /* Malloced memory used by some conversion */
 #ifndef SQLITE_OMIT_FLOATING_POINT
   int  exp, e2;              /* exponent of real numbers */
   int nsd;                   /* Number of significant digits returned */
@@ -336,7 +336,6 @@ void sqlite3VXPrintf(
         break;
       }
     }
-    zExtra = 0;
 
     /*
     ** At this point, variables are initialized as follows:
@@ -627,13 +626,16 @@ void sqlite3VXPrintf(
         }else{
           c = va_arg(ap,int);
         }
-        buf[0] = (char)c;
-        if( precision>=0 ){
-          for(idx=1; idx<precision; idx++) buf[idx] = (char)c;
-          length = precision;
-        }else{
-          length =1;
+        if( precision>1 ){
+          width -= precision-1;
+          if( width>1 && !flag_leftjustify ){
+            sqlite3AppendChar(pAccum, width-1, ' ');
+            width = 0;
+          }
+          sqlite3AppendChar(pAccum, precision-1, c);
         }
+        length = 1;
+        buf[0] = c;
         bufpt = buf;
         break;
       case etSTRING:
@@ -734,11 +736,14 @@ void sqlite3VXPrintf(
     ** the output.
     */
     width -= length;
-    if( width>0 && !flag_leftjustify ) sqlite3AppendSpace(pAccum, width);
+    if( width>0 && !flag_leftjustify ) sqlite3AppendChar(pAccum, width, ' ');
     sqlite3StrAccumAppend(pAccum, bufpt, length);
-    if( width>0 && flag_leftjustify ) sqlite3AppendSpace(pAccum, width);
+    if( width>0 && flag_leftjustify ) sqlite3AppendChar(pAccum, width, ' ');
 
-    if( zExtra ) sqlite3_free(zExtra);
+    if( zExtra ){
+      sqlite3_free(zExtra);
+      zExtra = 0;
+    }
   }/* End for loop over the format string */
 } /* End of function */
 
@@ -791,11 +796,11 @@ static int sqlite3StrAccumEnlarge(StrAccum *p, int N){
 }
 
 /*
-** Append N space characters to the given string buffer.
+** Append N copies of character c to the given string buffer.
 */
-void sqlite3AppendSpace(StrAccum *p, int N){
+void sqlite3AppendChar(StrAccum *p, int N, char c){
   if( p->nChar+N >= p->nAlloc && (N = sqlite3StrAccumEnlarge(p, N))<=0 ) return;
-  while( (N--)>0 ) p->zText[p->nChar++] = ' ';
+  while( (N--)>0 ) p->zText[p->nChar++] = c;
 }
 
 /*
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 5114ccccf4..f4785411d5 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -3543,7 +3543,7 @@ int sqlite3OpenTempDatabase(Parse *);
 void sqlite3StrAccumInit(StrAccum*, char*, int, int);
 void sqlite3StrAccumAppend(StrAccum*,const char*,int);
 void sqlite3StrAccumAppendAll(StrAccum*,const char*);
-void sqlite3AppendSpace(StrAccum*,int);
+void sqlite3AppendChar(StrAccum*,int,char);
 char *sqlite3StrAccumFinish(StrAccum*);
 void sqlite3StrAccumReset(StrAccum*);
 void sqlite3SelectDestInit(SelectDest*,int,int);
diff --git a/test/printf2.test b/test/printf2.test
index 4cb1783bfb..21deeb779d 100644
--- a/test/printf2.test
+++ b/test/printf2.test
@@ -95,5 +95,25 @@ do_execsql_test printf2-2.3 {
   SELECT printf('%s=(%d/%g/%s)',a) FROM t1 ORDER BY a;
 } {-1=(0/0/) 1=(0/0/) 1.5=(0/0/) abc=(0/0/)}
 
+# The precision of the %c conversion causes the character to repeat.
+#
+do_execsql_test printf2-3.1 {
+  SELECT printf('|%110.100c|','*');
+} {{|          ****************************************************************************************************|}}
+do_execsql_test printf2-3.2 {
+  SELECT printf('|%-110.100c|','*');
+} {{|****************************************************************************************************          |}}
+do_execsql_test printf2-3.3 {
+  SELECT printf('|%9.8c|%-9.8c|','*','*');
+} {{| ********|******** |}}
+do_execsql_test printf2-3.4 {
+  SELECT printf('|%8.8c|%-8.8c|','*','*');
+} {|********|********|}
+do_execsql_test printf2-3.5 {
+  SELECT printf('|%7.8c|%-7.8c|','*','*');
+} {|********|********|}
+
+
+
 
 finish_test