about summary refs log tree commit diff
path: root/string
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1997-05-21 01:48:59 +0000
committerUlrich Drepper <drepper@redhat.com>1997-05-21 01:48:59 +0000
commit1f205a479b43e5e40672fe5b4ae8f717b28c41b1 (patch)
tree0611b2d3503d81c55b27b235119ae999f1271178 /string
parent43b0e40f85770cd1f362c3abbad41e09bd9f0b17 (diff)
downloadglibc-1f205a479b43e5e40672fe5b4ae8f717b28c41b1.tar.gz
glibc-1f205a479b43e5e40672fe5b4ae8f717b28c41b1.tar.xz
glibc-1f205a479b43e5e40672fe5b4ae8f717b28c41b1.zip
1997-05-21 02:49  Ulrich Drepper  <drepper@cygnus.com>

	* gnu-versions.h (_GNU_OBSTACK_INTERFACE_VERSION): Set to 2 since
	interface was changed with addition of _obstack_memory_used.
	Suggested by Ian Taylor <ian@cygnus.com>.

	* malloc/obstack.c: Include <config.h>.  Include <stdlib.h> only
	if __GNU_LIBRARY__ or HAVE_STDLIB_H is defined.
	Reported by Ian Taylor <ian@cygnus.com>.

	* dirent/Makefile (routines): Add versionsort.
	* dirent/dirent.h: Add prototype for versionsort.
	* dirent/versionsort.c: New file.
	* manual/filesys.texi: Add documentation for versionsort.
	* manual/string.texi: Add documentation for strverscmp.
	* string/Makefile (routines): Add strverscmp.
	(tests): Add tst-svc.
	* string/string.h: Add prototype for strverscmp.
	* string/strverscmp.c: New file.
	* string/tst-svc.c: New file.  Test for strverscmp.
	* string/tst-svc.input: New file.  Input data for tst-svc.
	* string/tst-svc.expect: New file.  Expected out from tst-svc.

	* math/Makefile (calls): Add s_signbit.

	* po/sv.po: Update.

	* resolv/nss_dns/dns-host.c: Add casts to prevent warnings.
	* sunrpc/pmap_rmt.c: Likewise.

	* string/basename.c: Don't use ISO C definition style.
	Include <config.h> is HAVE_CONFIG_H is defined.

	* sunrpc/proto.h: Add `const' wherever possible.
	* sunrpc/rpc_cout.c: Likewise.
	* sunrpc/rpc_svcout.c: Likewise.
	* sunrpc/xdr_mem.c: Likewise.
	* sunrpc/xdr_rec.c: Likewise.
	* sunrpc/xdr_stdio.c: Likewise.
	* sunrpc/rpc_parse.c: Delete comma from end of enum definition.
	* sunrpc/xdr.c: Little code cleanups.
	* sunrpc/xdr_flaot.c: Likewise.
	Patches by Matthew Wilcox <matthew.wilcox@chbs.mhs.ciba.com>.

	* sysdeps/i386/fpu/__math.h (__finite): Fix typo.

	* sysdeps/unix/sysv/linux/shmdt.c: Add cast to prevent warning.

	* time/europe: Update from tzdata1997f.
	* time/zic.c: Update from tzcode1997e.

1997-05-20 19:20  Miguel de Icaza <miguel@athena.nuclecu.unam.mx>

	* sysdeps/sparc/setjmp.S: Flush windows.
	Bug found by Richard Henderson.

1997-05-19 12:54  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* misc/efgcvt_r.c (fcvt_r, ecvt_r): Rewritten as to fit the specs.

1997-05-19 18:41  Thorsten Kukuk  <kukuk@uni-paderborn.de>

	* nis/nss_nisplus/nisplus-spwd.c (_nss_nisplus_parse_spent): Use
	atol instead of atoi.

1997-05-18 00:22  Philip Blundell <pjb27@cam.ac.uk>

	* inet/Makefile (routines): Add if_index.
	* sysdeps/unix/sysv/linux/if_index.c: New file.
	* sysdeps/stub/if_index.c: New file.
	* sysdeps/unix/sysv/linux/net/if.h: Add prototypes for routines in
	if_index.c (required by IPv6 basic API).
	* sysdeps/unix/sysv/linux/netinet/in.h: Add struct ipv6_pktinfo.

1997-05-17 23:29  Philip Blundell  <pjb27@cam.ac.uk>

	* sysdeps/unix/sysv/linux/netinet/in.h: Update IPv6 definitions
	for new advanced API draft.

1997-05-13 21:33  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdio-common/printf_fp.c: Only use the field width for deciding
	on padding when printing special values.
	* stdio-common/printf_fphex.c: Likewise.

1997-05-15 13:14  Miles Bader  <miles@gnu.ai.mit.edu>

	Changes by Thomas Bushnell <thomas@gnu.ai.mit.edu>:
	* hurd/hurdauth.c (_S_msg_add_auth): Implement correctly.

1997-05-12 14:50  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* hurd/hurdsig.c (_hurdsig_init): Double size of sigthread stack;
	msg_add_auth was overflowing it.

1997-05-12 21:20  Richard Henderson  <rth@tamu.edu>

	* elf/dl-lookup.c (_dl_lookup_symbol_skip): Call _dl_signal_error
	when we can't find the symbol.

1997-05-12 16:54  Ulrich Drepper  <drepper@cygnus.com>

	* posix/regex.c: Fix handling of 32-bit Windog environments.
	Patch by Arnold Robbins <arnold@skeeve.atl.ga.us>.

1997-05-10 23:26  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/m68k/syscalls.list: Add cacheflush.

1997-05-10 11:40  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/ldd.bash.in: Remove spurious quote character from version
	message.

1997-05-10 08:49  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* locale/programs/locale.c (write_charmaps): Don't get stuck in a
	loop if the file ends in a long line without newline.
	* locale/programs/charmap.c (charmap_read): Likewise.

1997-05-12 03:47  Ulrich Drepper  <drepper@cygnus.com>

	* sunrpc/rpc/xdr.h: Include more headers to be self-contained.
	* sunrpc/rpc/svc_auth.h: Likewise.
	* sunrpc/rpc/svc.h: Likewise.
	* sunrpc/rpc/rpc_msg.h: Likewise.
	* sunrpc/rpc/pmap_rmt.h: Likewise.
	* sunrpc/rpc/pmap_clnt.h: Likewise.
	* sunrpc/rpc/clnt.h: Likewise.
	* sunrpc/rpc/auth_unix.h: Likewise.
	* sysdeps/generic/rpc/auth.h: Likewise.
	Patches by Michael Deutschmann <ldeutsch@mail.netshop.net>.

1997-05-11 15:29  Philip Blundell  <pjb27@cam.ac.uk>

	* sysdeps/stub/sigaction.c (__sigaction): Correct typo.
	* sysdeps/standalone/arm/errnos.h: New file.
	* sysdeps/stub/sys/param.h: Add dummy definition of MAXSYMLINKS.
	* sysdeps/unix/arm/fork.S: New file.
	* sysdeps/unix/sysv/linux/arm/sysdep.h: New file.
	* sysdeps/stub/tempname.c (__stdio_gen_tempname): Add missing
	`streamptr' argument.
	* sysdeps/stub/vdprintf.c: Remove second copy of file (!), include
	<stdarg.h> to get va_list defined, return 0 not NULL.
	* sysdeps/unix/sysv/linux/statfsbuf.h: Include <gnu/types.h>.
	* sysdeps/unix/sysv/linux/arm/syscall.S: New file.
	* sysdeps/stub/direntry.h (struct dirent): Add missing ';'.
	* sysdeps/stub/seekdir.c (seekdir): Likewise.
	* sysdeps/stub/dirfd.c (dirfd): Argument dirp is DIR*, not FILE*.
	* sysdeps/standalone/dirstream.h: Define struct __dirstream
	not DIR; <dirent.h> provides typedef.
	* sysdeps/unix/sysv/linux/arm/clone.S: New file.
	* sysdeps/unix/sysv/linux/arm/socket.S: New file.
	* sysdeps/stub/sysconf.c (__sysconf): Fix typos.

1997-05-01 06:35  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/powerpc/Dist: New file.
	* sysdeps/powerpc/Makefile: New file.
	* sysdeps/powerpc/fclrexcpt.c: New file.
	* sysdeps/powerpc/fegetenv.c: New file.
	* sysdeps/powerpc/fegetround.c: New file.
	* sysdeps/powerpc/feholdexcpt.c: New file.
	* sysdeps/powerpc/fenvbits.h: New file.
	* sysdeps/powerpc/fenv_const.c: New file.
	* sysdeps/powerpc/fenv_libc.h: New file.
	* sysdeps/powerpc/fesetenv.c: New file.
	* sysdeps/powerpc/fesetround.c: New file.
	* sysdeps/powerpc/feupdateenv.c: New file.
	* sysdeps/powerpc/fgetexcptflg.c: New file.
	* sysdeps/powerpc/fraiseexcpt.c: New file.
	* sysdeps/powerpc/fsetexcptflg.c: New file.
	* sysdeps/powerpc/ftestexcept.c: New file.
	* sysdeps/powerpc/mathbits.h: New file.

	* sysdeps/powerpc/dl-machine.h: Wrap in #ifndef dl_machine_h;
	define elf_machine_lookup_noexec_p, elf_machine_lookup_noplt_p,
	ELF_MACHINE_RELOC_NOPLT; consequent changes to elf_machine_rela.

	* sysdeps/powerpc/__math.h: Remove definition for hypot and __sgn.

	* sysdep/powerpc/fpu_control.h: Correct IEEE default mode.

	* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Don't use .text, but
	instead .section ".text".

1997-04-25 05:06  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/powerpc/__longjmp.S: Use symbolic register numbering.
	* sysdeps/powerpc/bsd-_setjmp.S: Likewise.
	* sysdeps/powerpc/bsd-setjmp.S: Likewise.
	* sysdeps/powerpc/setjmp.S: Likewise.

	* sysdeps/unix/sysv/linux/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/socket.S: Likewise.
	* sysdeps/unix/sysv/linux/syscall.S: Likewise.

1997-04-20 04:37  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/powerpc/strchr.s: New file.
	* sysdeps/powerpc/strcmp.s: New (ugly) file.
	* sysdeps/powerpc/memset.s: New file.
	* string/tester.c: Include prototype and _GNU_SOURCE to make
	standalone compilation possible. Give strcmp a better
	test. Give memset a better test.

1997-04-05 06:34  Geoff Keating  <geoffk@ozemail.com.au>

	* sysdeps/powerpc/strlen.s: Fixed bugs (how did it ever pass its
	tests before?). Changed to symbolic register numbering as an
	experiment.
	* sysdeps/powerpc/ffs.c: Don't include bstring.h, it doesn't
	exist.
	* sysdeps/rs6000/ffs.c: Likewise.

1997-05-12 02:28  Ulrich Drepper  <drepper@cygnus.com>

	* time/sys/time.h: Make second argument of setitimer const.
	Patch by Michael Deutschmann <ldeutsch@mail.netshop.net>.
	* sysdeps/stub/setitimer.c: Likewise.
	* sysdeps/mach/hurd/setitimer.c: Likewise.
Diffstat (limited to 'string')
-rw-r--r--string/Makefile8
-rw-r--r--string/basename.c7
-rw-r--r--string/string.h3
-rw-r--r--string/strverscmp.c111
-rw-r--r--string/tester.c76
-rw-r--r--string/tst-strlen.c2
-rw-r--r--string/tst-svc.c45
-rw-r--r--string/tst-svc.expect26
-rw-r--r--string/tst-svc.input26
9 files changed, 300 insertions, 4 deletions
diff --git a/string/Makefile b/string/Makefile
index 8f35f207f6..6704dbf4e0 100644
--- a/string/Makefile
+++ b/string/Makefile
@@ -24,7 +24,7 @@ subdir	:= string
 headers	:= string.h strings.h memory.h endian.h bytesex.h \
 	   argz.h envz.h
 
-routines	:= strcat strchr strcmp strcoll strcpy strcspn		\
+routines	:= strcat strchr strcmp strcoll strcpy strcspn strverscmp	\
 		   strdup strndup	\
 		   strerror _strerror strerror_r strlen strnlen		\
 		   strncat strncmp strncpy				\
@@ -40,7 +40,8 @@ routines	:= strcat strchr strcmp strcoll strcpy strcspn		\
 		   envz basename					\
 		   strcoll_l strxfrm_l
 
-tests		:= tester testcopy test-ffs tst-strlen stratcliff
+tests		:= tester testcopy test-ffs tst-strlen stratcliff \
+	           tst-svc
 distribute	:= memcopy.h pagecopy.h
 
 
@@ -50,3 +51,6 @@ tester-ENV = LANGUAGE=C
 CFLAGS-tester.c = -fno-builtin
 CFLAGS-tst-strlen.c = -fno-builtin
 CFLAGS-stratcliff.c = -fno-builtin
+
+tests: $(objpfx)tst-svc.out
+	cmp tst-svc.expect $(objpfx)tst-svc.out
diff --git a/string/basename.c b/string/basename.c
index 4f06843aeb..f24e0ac1b4 100644
--- a/string/basename.c
+++ b/string/basename.c
@@ -17,10 +17,15 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
 #include <string.h>
 
 char *
-basename (const char *filename)
+basename (filename)
+     const char *filename;
 {
   char *p = strrchr (filename, '/');
   return p ? p + 1 : (char *) filename;
diff --git a/string/string.h b/string/string.h
index 7a6ad1235f..4a79dcecc2 100644
--- a/string/string.h
+++ b/string/string.h
@@ -241,6 +241,9 @@ extern char *strsep __P ((char **__stringp, __const char *__delim));
 #endif
 
 #ifdef	__USE_GNU
+/* Compare S1 and S2 as strings holding name & indices/version numbers.  */
+extern int strverscmp __P ((__const char *__s1, __const char *__s2));
+
 /* Return a string describing the meaning of the signal number in SIG.  */
 extern char *strsignal __P ((int __sig));
 
diff --git a/string/strverscmp.c b/string/strverscmp.c
new file mode 100644
index 0000000000..388df75dfd
--- /dev/null
+++ b/string/strverscmp.c
@@ -0,0 +1,111 @@
+/* Compare strings while treating digits characters numerically.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jean-François Bignolles <bignolle@ecoledoc.ibp.fr>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <string.h>
+#include <ctype.h>
+
+/* states: S_N: normal, S_I: comparing integral part, S_F: comparing
+           Fractionnal parts, S_Z: idem but with leading Zeroes only */
+#define  S_N    0x0
+#define  S_I    0x4
+#define  S_F    0x8
+#define  S_Z    0xC
+
+/* result_type: CMP: return diff; LEN: compare using len_diff/diff */
+#define  CMP    2
+#define  LEN    3
+
+
+/* Compare S1 and S2 as strings holding indices/version numbers,
+   returning less than, equal to or greater than zero if S1 is less than,
+   equal to or greater than S2 (for more info, see the texinfo doc).
+*/
+
+int
+strverscmp (s1, s2)
+     const char *s1;
+     const char *s2;
+{
+  const unsigned char *p1 = (const unsigned char *) s1;
+  const unsigned char *p2 = (const unsigned char *) s2;
+  unsigned char c1, c2;
+  int state;
+  int diff;
+
+  /* Symbol(s)    0       [1-9]   others  (padding)
+     Transition   (10) 0  (01) d  (00) x  (11) -   */
+  static const unsigned int next_state[] =
+  {
+      /* state    x    d    0    - */
+      /* S_N */  S_N, S_I, S_Z, S_N,
+      /* S_I */  S_N, S_I, S_I, S_I,
+      /* S_F */  S_N, S_F, S_F, S_F,
+      /* S_Z */  S_N, S_F, S_Z, S_Z
+  };
+
+  static const int result_type[] =
+  {
+      /* state   x/x  x/d  x/0  x/-  d/x  d/d  d/0  d/-
+                 0/x  0/d  0/0  0/-  -/x  -/d  -/0  -/- */
+
+      /* S_N */  CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
+                 CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
+      /* S_I */  CMP, -1,  -1,  CMP, +1,  LEN, LEN, CMP,
+                 +1,  LEN, LEN, CMP, CMP, CMP, CMP, CMP,
+      /* S_F */  CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
+                 CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
+      /* S_Z */  CMP, +1,  +1,  CMP, -1,  CMP, CMP, CMP,
+                 -1,  CMP, CMP, CMP
+  };
+
+  if (p1 == p2)
+    return 0;
+
+  c1 = *p1++;
+  c2 = *p2++;
+  /* Hint: '0' is a digit too.  */
+  state = S_N | (c1 == '0') + (isdigit (c1) != 0);
+
+  while ((diff = c1 - c2) == 0 && c1 != '\0')
+    {
+      state = next_state[state];
+      c1 = *p1++;
+      c2 = *p2++;
+      state |= (c1 == '0') + (isdigit (c1) != 0);
+    }
+
+  state = result_type[state << 2 | ((c2 == '0') + (isdigit (c2) != 0))];
+
+  switch (state)
+  {
+    case CMP:
+      return diff;
+
+    case LEN:
+      while (isdigit (*p1++))
+	if (!isdigit (*p2++))
+	  return 1;
+
+      return isdigit (*p2) ? -1 : diff;
+
+    default:
+      return state;
+  }
+}
diff --git a/string/tester.c b/string/tester.c
index b815539737..dcd7342ba3 100644
--- a/string/tester.c
+++ b/string/tester.c
@@ -1,3 +1,6 @@
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
 #include <ansidecl.h>
 #include <errno.h>
 #include <stdio.h>
@@ -28,6 +31,7 @@ DEFUN(check, (thing, number), int thing AND int number)
 }
 
 /* Complain if first two args don't strcmp as equal.  */
+void equal(CONST char *a, CONST char *b, int number);
 void
 DEFUN(equal, (a, b, number), CONST char *a AND CONST char *b AND int number)
 {
@@ -54,6 +58,41 @@ DEFUN(main, (argc, argv), int argc AND char **argv)
   check(strcmp("a\203", "a") > 0, 8);		/* Tricky if char signed. */
   check(strcmp("a\203", "a\003") > 0, 9);
 
+  {
+    char buf1[0x40], buf2[0x40];
+    int i, j;
+    for (i=0; i < 0x10; i++)
+      for (j = 0; j < 0x10; j++)
+      {
+	int k;
+	for (k = 0; k < 0x3f; k++)
+	  {
+	    buf1[j] = '0' ^ (k & 4);
+	    buf2[j] = '4' ^ (k & 4);
+	  }
+	buf1[i] = buf1[0x3f] = 0;
+	buf2[j] = buf2[0x3f] = 0;
+	for (k = 0; k < 0xf; k++)
+	  {
+	    int cnum = 0x10+0x10*k+0x100*j+0x1000*i;
+	    check(strcmp(buf1+i,buf2+j) == 0, cnum);
+	    buf1[i+k] = 'A' + i + k;
+	    buf1[i+k+1] = 0;
+	    check(strcmp(buf1+i,buf2+j) > 0, cnum+1);
+	    check(strcmp(buf2+j,buf1+i) < 0, cnum+2);
+	    buf2[j+k] = 'B' + i + k;
+	    buf2[j+k+1] = 0;
+	    check(strcmp(buf1+i,buf2+j) < 0, cnum+3);
+	    check(strcmp(buf2+j,buf1+i) > 0, cnum+4);
+	    buf2[j+k] = 'A' + i + k;
+	    buf1[i] = 'A' + i + 0x80;
+	    check(strcmp(buf1+i,buf2+j) > 0, cnum+5);
+	    check(strcmp(buf2+j,buf1+i) < 0, cnum+6);
+	    buf1[i] = 'A' + i;
+	  }
+      }
+   }
+
   /* Test strcpy next because we need it to set up other tests.  */
   it = "strcpy";
   check(strcpy(one, "abcd") == one, 1);	/* Returned value. */
@@ -672,6 +711,43 @@ DEFUN(main, (argc, argv), int argc AND char **argv)
   (void) memset(one+2, 010045, 1);
   equal(one, "ax\045xe", 6);		/* Unsigned char convert. */
 
+  /* Test for more complex versions of memset, for all alignments and
+     lengths up to 256. This test takes a little while, perhaps it should
+     be made weaker? */
+  {
+    char data[512];
+    int i;
+    int j;
+    int k;
+    int c;
+    
+    for (i = 0; i < 512; i++)
+      data[i] = 'x';
+    for (c = 0; c <= 'y'; c += 'y')  /* check for memset(,0,) and
+					memset(,'y',) */
+      for (j = 0; j < 256; j++)
+	for (i = 0; i < 256; i++)
+	  {
+	    memset(data+i,c,j);
+	    for (k = 0; k < i; k++)
+	      if (data[k] != 'x')
+		goto fail;
+	    for (k = i; k < i+j; k++)
+	      {
+		if (data[k] != c)
+		  goto fail;
+		data[k] = 'x';
+	      }
+	    for (k = i+j; k < 512; k++)
+	      if (data[k] != 'x')
+		goto fail;
+	    continue;
+
+	  fail:
+	    check(0,7+i+j*256+(c != 0)*256*256); 
+	  }
+  }
+
   /* bcopy - much like memcpy.
      Berklix manual is silent about overlap, so don't test it.  */
   it = "bcopy";
diff --git a/string/tst-strlen.c b/string/tst-strlen.c
index b9efe1da29..4acd4045f5 100644
--- a/string/tst-strlen.c
+++ b/string/tst-strlen.c
@@ -34,7 +34,7 @@ main(int argc, char *argv[])
 		  return 1;
 		}
 	    }
-        }
+	}
     }
   return 0;
 }
diff --git a/string/tst-svc.c b/string/tst-svc.c
new file mode 100644
index 0000000000..c6add5b4b1
--- /dev/null
+++ b/string/tst-svc.c
@@ -0,0 +1,45 @@
+/* Test for strverscmp() */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define  MAX_STRINGS      256
+#define  MAX_LINE_SIZE    32
+
+int
+compare (const void *p1, const void *p2)
+{
+  return strverscmp (*((char **) p1), *((char **) p2));
+}
+
+int
+main (int argc, char *argv[])
+{
+  char line[MAX_LINE_SIZE + 1];
+  char *str[MAX_STRINGS];
+  int  count = 0;
+  int  i, n;
+
+  while (count < MAX_STRINGS && fgets (line, MAX_LINE_SIZE, stdin) != NULL)
+    {
+      n = strlen (line) - 1;
+
+      if (line[n] == '\n')
+        line[n] = '\0';
+
+      str[count] = strdup (line);
+
+      if (str[count] == NULL)
+        exit (EXIT_FAILURE);
+
+      ++count;
+    }
+
+  qsort (str, count, sizeof (char *), compare);
+
+  for (i = 0; i < count; ++i)
+    puts (str[i]);
+
+  exit (EXIT_SUCCESS);
+}
diff --git a/string/tst-svc.expect b/string/tst-svc.expect
new file mode 100644
index 0000000000..f906c4fc0b
--- /dev/null
+++ b/string/tst-svc.expect
@@ -0,0 +1,26 @@
+000
+001
+00
+00a
+01
+01a
+0
+0a
+20
+21
+22
+212
+foo
+foo-0.4
+foo-0.4a
+foo-0.4b
+foo-0.5
+foo-0.10.5
+foo-3.01
+foo-3.0
+foo-3.0.0
+foo-3.0.1
+foo-3.2
+foo-3.10
+foo00
+foo0
diff --git a/string/tst-svc.input b/string/tst-svc.input
new file mode 100644
index 0000000000..b80ee82b07
--- /dev/null
+++ b/string/tst-svc.input
@@ -0,0 +1,26 @@
+0a
+00
+0
+01
+001
+01a
+00a
+000
+20
+212
+21
+22
+foo0
+foo00
+foo-0.4
+foo-3.0
+foo
+foo-3.0.0
+foo-3.0.1
+foo-0.5
+foo-0.4b
+foo-3.10
+foo-3.2
+foo-3.01
+foo-0.4a
+foo-0.10.5