mirror of
https://sourceware.org/git/glibc.git
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Fri Dec 15 04:41:22 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
* stdio-common/Makefile (tests): Add bug10. * stdio-common/bug10.c: New file. From HJ Lu. * stdio-common/tstdiomisc.c: Make more test-suite like: exit status tells about successful run. * stdio-common/vfscanf.c [!USE_IN_LIBIO]: Use `flags' to check format correctness. Correct handling of trailing white spaces in format + EOF. Fri Dec 15 01:31:56 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu> * stdio-common/Makefile (tests): Add bug8 and bug9. * stdio-common/bug8.c, stdio-common/bug9.c: New tests. * stdio-common/vfscanf.c: Fix bug in dynamic buffer handling. * stdlib/strtod.c: Correct spelling: nominator -> numerator. Thanks to Jim Meyering. Sat Nov 25 06:05:12 1995 H.J. Lu <hjl@nynexst.com> * stdio-common/vfscanf.c: Always check width !=0. Correctly handle %%.
This commit is contained in:
Roland McGrath
parent
faf92f2a62
commit
05be689b57
26
ChangeLog
26
ChangeLog
@ -1,3 +1,29 @@
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Fri Dec 15 04:41:22 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
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* stdio-common/Makefile (tests): Add bug10.
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* stdio-common/bug10.c: New file. From HJ Lu.
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* stdio-common/tstdiomisc.c: Make more test-suite like: exit
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status tells about successful run.
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* stdio-common/vfscanf.c [!USE_IN_LIBIO]: Use `flags' to check
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format correctness.
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Correct handling of trailing white spaces in format + EOF.
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Fri Dec 15 01:31:56 1995 Ulrich Drepper <drepper@gnu.ai.mit.edu>
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* stdio-common/Makefile (tests): Add bug8 and bug9.
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* stdio-common/bug8.c, stdio-common/bug9.c: New tests.
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* stdio-common/vfscanf.c: Fix bug in dynamic buffer handling.
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* stdlib/strtod.c: Correct spelling: nominator -> numerator.
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Thanks to Jim Meyering.
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Sat Nov 25 06:05:12 1995 H.J. Lu <hjl@nynexst.com>
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* stdio-common/vfscanf.c: Always check width !=0.
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Correctly handle %%.
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Thu Dec 14 02:28:22 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
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* posix/glob.c (glob_in_dir): Cast result of opendir to __ptr_t,
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@ -39,7 +39,7 @@ distribute := _itoa.h printf-parse.h
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tests := tst-printf tstscanf test_rdwr test-popen tstgetln test-fseek \
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temptest tst-fileno test-fwrite \
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xbug errnobug \
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bug1 bug2 bug3 bug4 bug5 bug6 bug7 \
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bug1 bug2 bug3 bug4 bug5 bug6 bug7 bug8 bug9 bug10 \
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tfformat tiformat tstdiomisc
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26
stdio-common/bug10.c
Normal file
26
stdio-common/bug10.c
Normal file
@ -0,0 +1,26 @@
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#include <stdio.h>
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int main(int arc, char *argv)
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{
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int n, res;
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unsigned int val;
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char *s;
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int result = 0;
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s = "111";
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n = 0;
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res = sscanf(s, "%u %n", &val, &n);
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printf("Result of sscanf = %d\n", res);
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printf("Scanned format %%u = %u\n", val);
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printf("Possibly scanned format %%n = %d\n", n);
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result |= res != 1 || val != 111 || n != 3;
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result |= sscanf ("", " %n", &n) == EOF;
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puts (result ? "Test failed" : "All tests passed");
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return result;
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}
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26
stdio-common/bug8.c
Normal file
26
stdio-common/bug8.c
Normal file
@ -0,0 +1,26 @@
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#include <stdio.h>
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#include <string.h>
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main()
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{
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char buf[100];
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int point, x, y;
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int status = 0;
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sscanf("0x10 10", "%x %x", &x, &y);
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sprintf(buf, "%d %d", x, y);
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puts (buf);
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status |= strcmp (buf, "16 16");
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sscanf("P012349876", "P%1d%4d%4d", &point, &x, &y);
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sprintf(buf, "%d %d %d", point, x, y);
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status |= strcmp (buf, "0 1234 9876");
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puts (buf);
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sscanf("P112349876", "P%1d%4d%4d", &point, &x, &y);
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sprintf(buf, "%d %d %d", point, x, y);
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status |= strcmp (buf, "1 1234 9876");
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puts (buf);
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puts (status ? "Test failed" : "Test passed");
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return status;
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}
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22
stdio-common/bug9.c
Normal file
22
stdio-common/bug9.c
Normal file
@ -0,0 +1,22 @@
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#include <stdio.h>
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#include <string.h>
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int
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main()
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{
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char buf[100];
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int a, b;
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int status = 0;
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sscanf ("12ab", "%dab%n", &a, &b);
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sprintf (buf, "%d, %d", a, b);
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puts (buf);
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status |= strcmp (buf, "12, 4");
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sscanf ("12ab100", "%dab%n100", &a, &b);
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sprintf (buf, "%d, %d", a, b);
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puts (buf);
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status |= strcmp (buf, "12, 4");
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return status;
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}
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@ -1,40 +1,49 @@
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#include <stdio.h>
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void
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int
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t1 ()
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{
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int n = -1;
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sscanf ("abc ", "abc %n", &n);
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printf ("t1: count=%d\n", n);
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return n != 5;
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}
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void
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int
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t2 ()
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{
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int result = 0;
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int n;
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long N;
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int retval;
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#define SCAN(INPUT, FORMAT, VAR) \
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#define SCAN(INPUT, FORMAT, VAR, EXP_RES, EXP_VAL) \
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VAR = -1; \
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retval = sscanf (INPUT, FORMAT, &VAR); \
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printf ("sscanf (\"%s\", \"%s\", &x) => %d, x = %ld\n", \
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INPUT, FORMAT, retval, VAR);
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INPUT, FORMAT, retval, VAR); \
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result |= retval != EXP_RES || VAR != EXP_VAL
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SCAN ("12345", "%ld", N);
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SCAN ("12345", "%llllld", N);
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SCAN ("12345", "%LLLLLd", N);
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SCAN ("test ", "%*s%n", n);
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SCAN ("test ", "%2*s%n", n);
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SCAN ("12 ", "%l2d", n);
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SCAN ("12 ", "%2ld", N);
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SCAN ("12345", "%ld", N, 1, 12345);
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SCAN ("12345", "%llllld", N, 0, -1);
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SCAN ("12345", "%LLLLLd", N, 0, -1);
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SCAN ("test ", "%*s%n", n, 0, 4);
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SCAN ("test ", "%2*s%n", n, 0, -1);
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SCAN ("12 ", "%l2d", n, 0, -1);
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SCAN ("12 ", "%2ld", N, 1, 12);
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return result;
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}
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int
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main ()
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{
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t1 ();
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t2 ();
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int result = 0;
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fflush (stdout);
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return 0;
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result |= t1 ();
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result |= t2 ();
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result |= fflush (stdout) == EOF;
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return result;
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}
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@ -34,10 +34,6 @@ Cambridge, MA 02139, USA. */
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#define LONGLONG long
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#endif
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#ifdef USE_IN_LIBIO
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# include <libioP.h>
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# include <libio.h>
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/* Those are flags in the conversion format. */
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# define LONG 0x01 /* l: long or double */
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# define LONGDBL 0x02 /* L: long long or long double */
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@ -48,11 +44,15 @@ Cambridge, MA 02139, USA. */
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# define WIDTH 0x40 /* width */
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#ifdef USE_IN_LIBIO
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# include <libioP.h>
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# include <libio.h>
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# define va_list _IO_va_list
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# define ungetc(c, s) _IO_ungetc (c, s)
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# define inchar() ((c = _IO_getc(s)), ++read_in, c)
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# define inchar() ((c = _IO_getc (s)), ++read_in, c)
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# define conv_error() return ((errp != NULL && (*errp |= 2)), \
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(c == EOF || _IO_ungetc(c, s)), done)
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(c == EOF || _IO_ungetc (c, s)), done)
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# define input_error() return ((errp != NULL && (*errp |= 1)), \
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done == 0 ? EOF : done)
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@ -69,8 +69,8 @@ Cambridge, MA 02139, USA. */
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} \
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} while (0)
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#else
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# define inchar() ((c = getc(s)) == EOF ? EOF : (++read_in, c))
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# define conv_error() return (ungetc(c, s), done)
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# define inchar() ((c = getc (s)), ++read_in, c)
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# define conv_error() return (ungetc (c, s), done)
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# define input_error() return (done == 0 ? EOF : done)
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# define memory_error() return ((errno = ENOMEM), EOF)
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# define ARGCHECK(s, format) \
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@ -111,9 +111,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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register int do_assign; /* Whether to do an assignment. */
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register int width; /* Maximum field width. */
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int group_flag; /* %' modifier flag. */
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#ifdef USE_IN_LIBIO
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int flags; /* Trace flags for current format element. */
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#endif
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/* Type modifiers. */
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int is_short, is_long, is_long_double;
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@ -145,11 +143,15 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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/* Character-buffer pointer. */
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register char *str, **strptr;
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size_t strsize;
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/* We must not react on white spaces immediately because they can
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possibly be matched even if in the input stream no character is
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available anymore. */
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int skip_space = 0;
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/* Workspace. */
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char *tw; /* Temporary pointer. */
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char *wp = NULL; /* Workspace. */
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size_t wpsize = 0; /* Currently used bytes in workspace. */
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size_t wpmax = 0; /* Maximal size of workspace. */
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size_t wpsize; /* Currently used bytes in workspace. */
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#define ADDW(Ch) \
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do \
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{ \
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@ -158,7 +160,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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char *old = wp; \
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wpmax = 200 > 2 * wpmax ? 200 : 2 * wpmax; \
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wp = (char *) alloca (wpmax); \
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if (wpsize > 0) \
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if (old != NULL) \
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memcpy (wp, old, wpsize); \
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} \
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wp[wpsize++] = (Ch); \
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@ -220,27 +222,37 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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fc = *f++;
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if (fc != '%')
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{
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/* Remember to skip spaces. */
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if (isspace (fc))
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{
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skip_space = 1;
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continue;
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}
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/* Characters other than format specs must just match. */
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if (c == EOF)
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input_error ();
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if (isspace (fc))
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/* We saw an white space as the last character in the format
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string. Now it's time to skip all leading white
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spaces. */
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if (skip_space)
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{
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/* Whitespace characters match any amount of whitespace. */
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while (isspace (c))
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inchar ();
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continue;
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(void) inchar ();
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skip_space = 0;
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}
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else if (c == fc)
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(void) inchar ();
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else
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conv_error ();
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continue;
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}
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#ifdef USE_IN_LIBIO
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/* That is the start of the coversion string. */
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/* This is the start of the conversion string. */
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flags = 0;
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#endif
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/* Initialize state of modifiers. */
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argpos = 0;
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@ -248,6 +260,9 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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group_flag = 0;
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is_short = is_long = is_long_double = malloc_string = 0;
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/* Prepare temporary buffer. */
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wpsize = 0;
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|
||||
/* Check for a positional parameter specification. */
|
||||
if (isdigit (*f))
|
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{
|
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@ -270,9 +285,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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switch (*f++)
|
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{
|
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case '*':
|
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#ifdef USE_IN_LIBIO
|
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flags = SUPPRESS;
|
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#endif
|
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do_assign = 0;
|
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break;
|
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case '\'':
|
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@ -280,11 +293,9 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
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break;
|
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}
|
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|
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#ifdef USE_IN_LIBIO
|
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/* We have seen width. */
|
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if (isdigit (*f))
|
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flags |= WIDTH;
|
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#endif
|
||||
|
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/* Find the maximum field width. */
|
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width = 0;
|
||||
@ -303,44 +314,36 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
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{
|
||||
case 'h':
|
||||
/* int's are short int's. */
|
||||
#ifdef USE_IN_LIBIO
|
||||
if (flags & ~(SUPPRESS | WIDTH))
|
||||
/* Signal illegal format element. */
|
||||
conv_error ();
|
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flags |= SHORT;
|
||||
#endif
|
||||
is_short = 1;
|
||||
break;
|
||||
case 'l':
|
||||
if (is_long)
|
||||
{
|
||||
/* A double `l' is equivalent to an `L'. */
|
||||
#ifdef USE_IN_LIBIO
|
||||
if ((flags & ~(SUPPRESS | WIDTH)) && (flags & LONGDBL))
|
||||
if ((flags & ~(SUPPRESS | WIDTH)))
|
||||
conv_error ();
|
||||
flags &= ~LONG;
|
||||
flags |= LONGDBL;
|
||||
#endif
|
||||
is_longlong = 1;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* int's are long int's. */
|
||||
#ifdef USE_IN_LIBIO
|
||||
flags |= LONG;
|
||||
#endif
|
||||
is_long = 1;
|
||||
}
|
||||
break;
|
||||
case 'q':
|
||||
case 'L':
|
||||
/* double's are long double's, and int's are long long int's. */
|
||||
#ifdef USE_IN_LIBIO
|
||||
if (flags & ~(SUPPRESS | WIDTH))
|
||||
/* Signal illegal format element. */
|
||||
conv_error ();
|
||||
flags |= LONGDBL;
|
||||
#endif
|
||||
is_long_double = 1;
|
||||
break;
|
||||
case 'a':
|
||||
@ -356,15 +359,20 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
|
||||
/* Find the conversion specifier. */
|
||||
fc = *f++;
|
||||
if (fc != '[' && fc != 'c' && fc != 'n')
|
||||
/* Eat whitespace. */
|
||||
while (isspace (c))
|
||||
(void) inchar ();
|
||||
if (skip_space || (fc != '[' && fc != 'c' && fc != 'n'))
|
||||
{
|
||||
/* Eat whitespace. */
|
||||
while (isspace (c))
|
||||
(void) inchar ();
|
||||
skip_space = 0;
|
||||
}
|
||||
|
||||
switch (fc)
|
||||
{
|
||||
case '%': /* Must match a literal '%'. */
|
||||
if (c != fc)
|
||||
conv_error ();
|
||||
inchar ();
|
||||
break;
|
||||
|
||||
case 'n': /* Answer number of assignments done. */
|
||||
@ -444,7 +452,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
{ \
|
||||
/* We lose. Oh well. \
|
||||
Terminate the string and stop converting, \
|
||||
so at least we don't swallow any input. */ \
|
||||
so at least we don't skip any input. */ \
|
||||
(*strptr)[strsize] = '\0'; \
|
||||
++done; \
|
||||
conv_error (); \
|
||||
@ -513,7 +521,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
}
|
||||
|
||||
/* Look for a leading indication of base. */
|
||||
if (c == '0')
|
||||
if (width != 0 && c == '0')
|
||||
{
|
||||
if (width > 0)
|
||||
--width;
|
||||
@ -521,7 +529,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
|
||||
(void) inchar ();
|
||||
|
||||
if (tolower (c) == 'x')
|
||||
if (width != 0 && tolower (c) == 'x')
|
||||
{
|
||||
if (base == 0)
|
||||
base = 16;
|
||||
@ -540,7 +548,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
base = 10;
|
||||
|
||||
/* Read the number into workspace. */
|
||||
do
|
||||
while (c != EOF && width != 0)
|
||||
{
|
||||
if (base == 16 ? !isxdigit (c) :
|
||||
(!isdigit (c) || c - '0' >= base))
|
||||
@ -548,8 +556,9 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
ADDW (c);
|
||||
if (width > 0)
|
||||
--width;
|
||||
|
||||
(void) inchar ();
|
||||
}
|
||||
while (inchar () != EOF && width != 0);
|
||||
|
||||
if (wpsize == 0 ||
|
||||
(wpsize == 1 && (wp[0] == '+' || wp[0] == '-')))
|
||||
@ -739,6 +748,12 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
|
||||
}
|
||||
}
|
||||
|
||||
/* The last thing we saw int the format string was a white space.
|
||||
Consume the last white spaces. */
|
||||
if (skip_space)
|
||||
while (isspace (c))
|
||||
(void) inchar ();
|
||||
|
||||
return ((c == EOF || ungetc (c, s)), done);
|
||||
}
|
||||
|
||||
|
||||
@ -911,9 +911,9 @@ INTERNAL (STRTOF) (nptr, endptr, group)
|
||||
{
|
||||
if (num[0] >= d1)
|
||||
{
|
||||
/* The nominator of the number occupies fewer bits than
|
||||
/* The numerator of the number occupies fewer bits than
|
||||
the denominator but the one limb is bigger than the
|
||||
high limb of the nominator. */
|
||||
high limb of the numerator. */
|
||||
n1 = 0;
|
||||
n0 = num[0];
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user