aboutsummaryrefslogtreecommitdiff
path: root/contrib/sendmail/libsm/vfscanf.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/sendmail/libsm/vfscanf.c')
-rw-r--r--contrib/sendmail/libsm/vfscanf.c877
1 files changed, 877 insertions, 0 deletions
diff --git a/contrib/sendmail/libsm/vfscanf.c b/contrib/sendmail/libsm/vfscanf.c
new file mode 100644
index 000000000000..d043a1135884
--- /dev/null
+++ b/contrib/sendmail/libsm/vfscanf.c
@@ -0,0 +1,877 @@
+/*
+ * Copyright (c) 2000-2001, 2004 Proofpoint, Inc. and its suppliers.
+ * All rights reserved.
+ * Copyright (c) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * By using this file, you agree to the terms and conditions set
+ * forth in the LICENSE file which can be found at the top level of
+ * the sendmail distribution.
+ */
+
+#include <sm/gen.h>
+SM_IDSTR(id, "@(#)$Id: vfscanf.c,v 1.55 2013-11-22 20:51:44 ca Exp $")
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <setjmp.h>
+#include <sm/time.h>
+#include <sm/varargs.h>
+#include <sm/config.h>
+#include <sm/io.h>
+#include <sm/signal.h>
+#include <sm/clock.h>
+#include <sm/string.h>
+#include "local.h"
+
+#define BUF 513 /* Maximum length of numeric string. */
+
+/* Flags used during conversion. */
+#define LONG 0x01 /* l: long or double */
+#define SHORT 0x04 /* h: short */
+#define QUAD 0x08 /* q: quad (same as ll) */
+#define SUPPRESS 0x10 /* suppress assignment */
+#define POINTER 0x20 /* weird %p pointer (`fake hex') */
+#define NOSKIP 0x40 /* do not skip blanks */
+
+/*
+** The following are used in numeric conversions only:
+** SIGNOK, NDIGITS, DPTOK, and EXPOK are for floating point;
+** SIGNOK, NDIGITS, PFXOK, and NZDIGITS are for integral.
+*/
+
+#define SIGNOK 0x080 /* +/- is (still) legal */
+#define NDIGITS 0x100 /* no digits detected */
+
+#define DPTOK 0x200 /* (float) decimal point is still legal */
+#define EXPOK 0x400 /* (float) exponent (e+3, etc) still legal */
+
+#define PFXOK 0x200 /* 0x prefix is (still) legal */
+#define NZDIGITS 0x400 /* no zero digits detected */
+
+/* Conversion types. */
+#define CT_CHAR 0 /* %c conversion */
+#define CT_CCL 1 /* %[...] conversion */
+#define CT_STRING 2 /* %s conversion */
+#define CT_INT 3 /* integer, i.e., strtoll or strtoull */
+#define CT_FLOAT 4 /* floating, i.e., strtod */
+
+static void scanalrm __P((int));
+static unsigned char *sm_sccl __P((char *, unsigned char *));
+static jmp_buf ScanTimeOut;
+
+/*
+** SCANALRM -- handler when timeout activated for sm_io_vfscanf()
+**
+** Returns flow of control to where setjmp(ScanTimeOut) was set.
+**
+** Parameters:
+** sig -- unused
+**
+** Returns:
+** does not return
+**
+** Side Effects:
+** returns flow of control to setjmp(ScanTimeOut).
+**
+** NOTE: THIS CAN BE CALLED FROM A SIGNAL HANDLER. DO NOT ADD
+** ANYTHING TO THIS ROUTINE UNLESS YOU KNOW WHAT YOU ARE
+** DOING.
+*/
+
+/* ARGSUSED0 */
+static void
+scanalrm(sig)
+ int sig;
+{
+ longjmp(ScanTimeOut, 1);
+}
+
+/*
+** SM_VFSCANF -- convert input into data units
+**
+** Parameters:
+** fp -- file pointer for input data
+** timeout -- time intvl allowed to complete (milliseconds)
+** fmt0 -- format for finding data units
+** ap -- vectors for memory location for storing data units
+**
+** Results:
+** Success: number of data units assigned
+** Failure: SM_IO_EOF
+*/
+
+int
+sm_vfscanf(fp, timeout, fmt0, ap)
+ register SM_FILE_T *fp;
+ int SM_NONVOLATILE timeout;
+ char const *fmt0;
+ va_list SM_NONVOLATILE ap;
+{
+ register unsigned char *SM_NONVOLATILE fmt = (unsigned char *) fmt0;
+ register int c; /* character from format, or conversion */
+ register size_t width; /* field width, or 0 */
+ register char *p; /* points into all kinds of strings */
+ register int n; /* handy integer */
+ register int flags; /* flags as defined above */
+ register char *p0; /* saves original value of p when necessary */
+ int nassigned; /* number of fields assigned */
+ int nread; /* number of characters consumed from fp */
+ int base; /* base argument to strtoll/strtoull */
+
+ /* conversion function (strtoll/strtoull) */
+ ULONGLONG_T (*ccfn) __P((const char *, char **, int));
+ char ccltab[256]; /* character class table for %[...] */
+ char buf[BUF]; /* buffer for numeric conversions */
+ SM_EVENT *evt = NULL;
+
+ /* `basefix' is used to avoid `if' tests in the integer scanner */
+ static short basefix[17] =
+ { 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
+
+ if (timeout == SM_TIME_DEFAULT)
+ timeout = fp->f_timeout;
+ if (timeout == SM_TIME_IMMEDIATE)
+ {
+ /*
+ ** Filling the buffer will take time and we are wanted to
+ ** return immediately. So...
+ */
+
+ errno = EAGAIN;
+ return SM_IO_EOF;
+ }
+
+ if (timeout != SM_TIME_FOREVER)
+ {
+ if (setjmp(ScanTimeOut) != 0)
+ {
+ errno = EAGAIN;
+ return SM_IO_EOF;
+ }
+
+ evt = sm_seteventm(timeout, scanalrm, 0);
+ }
+
+ nassigned = 0;
+ nread = 0;
+ base = 0; /* XXX just to keep gcc happy */
+ ccfn = NULL; /* XXX just to keep gcc happy */
+ for (;;)
+ {
+ c = *fmt++;
+ if (c == 0)
+ {
+ if (evt != NULL)
+ sm_clrevent(evt); /* undo our timeout */
+ return nassigned;
+ }
+ if (isspace(c))
+ {
+ while ((fp->f_r > 0 || sm_refill(fp, SM_TIME_FOREVER)
+ == 0) &&
+ isspace(*fp->f_p))
+ nread++, fp->f_r--, fp->f_p++;
+ continue;
+ }
+ if (c != '%')
+ goto literal;
+ width = 0;
+ flags = 0;
+
+ /*
+ ** switch on the format. continue if done;
+ ** break once format type is derived.
+ */
+
+again: c = *fmt++;
+ switch (c)
+ {
+ case '%':
+literal:
+ if (fp->f_r <= 0 && sm_refill(fp, SM_TIME_FOREVER))
+ goto input_failure;
+ if (*fp->f_p != c)
+ goto match_failure;
+ fp->f_r--, fp->f_p++;
+ nread++;
+ continue;
+
+ case '*':
+ flags |= SUPPRESS;
+ goto again;
+ case 'h':
+ flags |= SHORT;
+ goto again;
+ case 'l':
+ if (*fmt == 'l')
+ {
+ fmt++;
+ flags |= QUAD;
+ }
+ else
+ {
+ flags |= LONG;
+ }
+ goto again;
+ case 'q':
+ flags |= QUAD;
+ goto again;
+
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ width = width * 10 + c - '0';
+ goto again;
+
+ /*
+ ** Conversions.
+ ** Those marked `compat' are for 4.[123]BSD compatibility.
+ **
+ ** (According to ANSI, E and X formats are supposed
+ ** to the same as e and x. Sorry about that.)
+ */
+
+ case 'D': /* compat */
+ flags |= LONG;
+ /* FALLTHROUGH */
+ case 'd':
+ c = CT_INT;
+ ccfn = (ULONGLONG_T (*)())sm_strtoll;
+ base = 10;
+ break;
+
+ case 'i':
+ c = CT_INT;
+ ccfn = (ULONGLONG_T (*)())sm_strtoll;
+ base = 0;
+ break;
+
+ case 'O': /* compat */
+ flags |= LONG;
+ /* FALLTHROUGH */
+ case 'o':
+ c = CT_INT;
+ ccfn = sm_strtoull;
+ base = 8;
+ break;
+
+ case 'u':
+ c = CT_INT;
+ ccfn = sm_strtoull;
+ base = 10;
+ break;
+
+ case 'X':
+ case 'x':
+ flags |= PFXOK; /* enable 0x prefixing */
+ c = CT_INT;
+ ccfn = sm_strtoull;
+ base = 16;
+ break;
+
+ case 'E':
+ case 'G':
+ case 'e':
+ case 'f':
+ case 'g':
+ c = CT_FLOAT;
+ break;
+
+ case 's':
+ c = CT_STRING;
+ break;
+
+ case '[':
+ fmt = sm_sccl(ccltab, fmt);
+ flags |= NOSKIP;
+ c = CT_CCL;
+ break;
+
+ case 'c':
+ flags |= NOSKIP;
+ c = CT_CHAR;
+ break;
+
+ case 'p': /* pointer format is like hex */
+ flags |= POINTER | PFXOK;
+ c = CT_INT;
+ ccfn = sm_strtoull;
+ base = 16;
+ break;
+
+ case 'n':
+ if (flags & SUPPRESS) /* ??? */
+ continue;
+ if (flags & SHORT)
+ *SM_VA_ARG(ap, short *) = nread;
+ else if (flags & LONG)
+ *SM_VA_ARG(ap, long *) = nread;
+ else
+ *SM_VA_ARG(ap, int *) = nread;
+ continue;
+
+ /* Disgusting backwards compatibility hacks. XXX */
+ case '\0': /* compat */
+ if (evt != NULL)
+ sm_clrevent(evt); /* undo our timeout */
+ return SM_IO_EOF;
+
+ default: /* compat */
+ if (isupper(c))
+ flags |= LONG;
+ c = CT_INT;
+ ccfn = (ULONGLONG_T (*)()) sm_strtoll;
+ base = 10;
+ break;
+ }
+
+ /* We have a conversion that requires input. */
+ if (fp->f_r <= 0 && sm_refill(fp, SM_TIME_FOREVER))
+ goto input_failure;
+
+ /*
+ ** Consume leading white space, except for formats
+ ** that suppress this.
+ */
+
+ if ((flags & NOSKIP) == 0)
+ {
+ while (isspace(*fp->f_p))
+ {
+ nread++;
+ if (--fp->f_r > 0)
+ fp->f_p++;
+ else if (sm_refill(fp, SM_TIME_FOREVER))
+ goto input_failure;
+ }
+ /*
+ ** Note that there is at least one character in
+ ** the buffer, so conversions that do not set NOSKIP
+ ** can no longer result in an input failure.
+ */
+ }
+
+ /* Do the conversion. */
+ switch (c)
+ {
+ case CT_CHAR:
+ /* scan arbitrary characters (sets NOSKIP) */
+ if (width == 0)
+ width = 1;
+ if (flags & SUPPRESS)
+ {
+ size_t sum = 0;
+ for (;;)
+ {
+ if ((size_t) (n = fp->f_r) < width)
+ {
+ sum += n;
+ width -= n;
+ fp->f_p += n;
+ if (sm_refill(fp,
+ SM_TIME_FOREVER))
+ {
+ if (sum == 0)
+ goto input_failure;
+ break;
+ }
+ }
+ else
+ {
+ sum += width;
+ fp->f_r -= width;
+ fp->f_p += width;
+ break;
+ }
+ }
+ nread += sum;
+ }
+ else
+ {
+ size_t r;
+
+ r = sm_io_read(fp, SM_TIME_FOREVER,
+ (void *) SM_VA_ARG(ap, char *),
+ width);
+ if (r == 0)
+ goto input_failure;
+ nread += r;
+ nassigned++;
+ }
+ break;
+
+ case CT_CCL:
+ /* scan a (nonempty) character class (sets NOSKIP) */
+ if (width == 0)
+ width = (size_t)~0; /* `infinity' */
+
+ /* take only those things in the class */
+ if (flags & SUPPRESS)
+ {
+ n = 0;
+ while (ccltab[*fp->f_p] != '\0')
+ {
+ n++, fp->f_r--, fp->f_p++;
+ if (--width == 0)
+ break;
+ if (fp->f_r <= 0 &&
+ sm_refill(fp, SM_TIME_FOREVER))
+ {
+ if (n == 0) /* XXX how? */
+ goto input_failure;
+ break;
+ }
+ }
+ if (n == 0)
+ goto match_failure;
+ }
+ else
+ {
+ p0 = p = SM_VA_ARG(ap, char *);
+ while (ccltab[*fp->f_p] != '\0')
+ {
+ fp->f_r--;
+ *p++ = *fp->f_p++;
+ if (--width == 0)
+ break;
+ if (fp->f_r <= 0 &&
+ sm_refill(fp, SM_TIME_FOREVER))
+ {
+ if (p == p0)
+ goto input_failure;
+ break;
+ }
+ }
+ n = p - p0;
+ if (n == 0)
+ goto match_failure;
+ *p = 0;
+ nassigned++;
+ }
+ nread += n;
+ break;
+
+ case CT_STRING:
+ /* like CCL, but zero-length string OK, & no NOSKIP */
+ if (width == 0)
+ width = (size_t)~0;
+ if (flags & SUPPRESS)
+ {
+ n = 0;
+ while (!isspace(*fp->f_p))
+ {
+ n++, fp->f_r--, fp->f_p++;
+ if (--width == 0)
+ break;
+ if (fp->f_r <= 0 &&
+ sm_refill(fp, SM_TIME_FOREVER))
+ break;
+ }
+ nread += n;
+ }
+ else
+ {
+ p0 = p = SM_VA_ARG(ap, char *);
+ while (!isspace(*fp->f_p))
+ {
+ fp->f_r--;
+ *p++ = *fp->f_p++;
+ if (--width == 0)
+ break;
+ if (fp->f_r <= 0 &&
+ sm_refill(fp, SM_TIME_FOREVER))
+ break;
+ }
+ *p = 0;
+ nread += p - p0;
+ nassigned++;
+ }
+ continue;
+
+ case CT_INT:
+ /* scan an integer as if by strtoll/strtoull */
+#if SM_CONF_BROKEN_SIZE_T
+ if (width == 0 || width > sizeof(buf) - 1)
+ width = sizeof(buf) - 1;
+#else /* SM_CONF_BROKEN_SIZE_T */
+ /* size_t is unsigned, hence this optimisation */
+ if (--width > sizeof(buf) - 2)
+ width = sizeof(buf) - 2;
+ width++;
+#endif /* SM_CONF_BROKEN_SIZE_T */
+ flags |= SIGNOK | NDIGITS | NZDIGITS;
+ for (p = buf; width > 0; width--)
+ {
+ c = *fp->f_p;
+
+ /*
+ ** Switch on the character; `goto ok'
+ ** if we accept it as a part of number.
+ */
+
+ switch (c)
+ {
+
+ /*
+ ** The digit 0 is always legal, but is
+ ** special. For %i conversions, if no
+ ** digits (zero or nonzero) have been
+ ** scanned (only signs), we will have
+ ** base==0. In that case, we should set
+ ** it to 8 and enable 0x prefixing.
+ ** Also, if we have not scanned zero digits
+ ** before this, do not turn off prefixing
+ ** (someone else will turn it off if we
+ ** have scanned any nonzero digits).
+ */
+
+ case '0':
+ if (base == 0)
+ {
+ base = 8;
+ flags |= PFXOK;
+ }
+ if (flags & NZDIGITS)
+ flags &= ~(SIGNOK|NZDIGITS|NDIGITS);
+ else
+ flags &= ~(SIGNOK|PFXOK|NDIGITS);
+ goto ok;
+
+ /* 1 through 7 always legal */
+ case '1': case '2': case '3':
+ case '4': case '5': case '6': case '7':
+ base = basefix[base];
+ flags &= ~(SIGNOK | PFXOK | NDIGITS);
+ goto ok;
+
+ /* digits 8 and 9 ok iff decimal or hex */
+ case '8': case '9':
+ base = basefix[base];
+ if (base <= 8)
+ break; /* not legal here */
+ flags &= ~(SIGNOK | PFXOK | NDIGITS);
+ goto ok;
+
+ /* letters ok iff hex */
+ case 'A': case 'B': case 'C':
+ case 'D': case 'E': case 'F':
+ case 'a': case 'b': case 'c':
+ case 'd': case 'e': case 'f':
+
+ /* no need to fix base here */
+ if (base <= 10)
+ break; /* not legal here */
+ flags &= ~(SIGNOK | PFXOK | NDIGITS);
+ goto ok;
+
+ /* sign ok only as first character */
+ case '+': case '-':
+ if (flags & SIGNOK)
+ {
+ flags &= ~SIGNOK;
+ goto ok;
+ }
+ break;
+
+ /* x ok iff flag still set & 2nd char */
+ case 'x': case 'X':
+ if (flags & PFXOK && p == buf + 1)
+ {
+ base = 16; /* if %i */
+ flags &= ~PFXOK;
+ goto ok;
+ }
+ break;
+ }
+
+ /*
+ ** If we got here, c is not a legal character
+ ** for a number. Stop accumulating digits.
+ */
+
+ break;
+ ok:
+ /* c is legal: store it and look at the next. */
+ *p++ = c;
+ if (--fp->f_r > 0)
+ fp->f_p++;
+ else if (sm_refill(fp, SM_TIME_FOREVER))
+ break; /* SM_IO_EOF */
+ }
+
+ /*
+ ** If we had only a sign, it is no good; push
+ ** back the sign. If the number ends in `x',
+ ** it was [sign] '0' 'x', so push back the x
+ ** and treat it as [sign] '0'.
+ */
+
+ if (flags & NDIGITS)
+ {
+ if (p > buf)
+ (void) sm_io_ungetc(fp, SM_TIME_DEFAULT,
+ *(unsigned char *)--p);
+ goto match_failure;
+ }
+ c = ((unsigned char *)p)[-1];
+ if (c == 'x' || c == 'X')
+ {
+ --p;
+ (void) sm_io_ungetc(fp, SM_TIME_DEFAULT, c);
+ }
+ if ((flags & SUPPRESS) == 0)
+ {
+ ULONGLONG_T res;
+
+ *p = 0;
+ res = (*ccfn)(buf, (char **)NULL, base);
+ if (flags & POINTER)
+ *SM_VA_ARG(ap, void **) =
+ (void *)(long) res;
+ else if (flags & QUAD)
+ *SM_VA_ARG(ap, LONGLONG_T *) = res;
+ else if (flags & LONG)
+ *SM_VA_ARG(ap, long *) = res;
+ else if (flags & SHORT)
+ *SM_VA_ARG(ap, short *) = res;
+ else
+ *SM_VA_ARG(ap, int *) = res;
+ nassigned++;
+ }
+ nread += p - buf;
+ break;
+
+ case CT_FLOAT:
+ /* scan a floating point number as if by strtod */
+ if (width == 0 || width > sizeof(buf) - 1)
+ width = sizeof(buf) - 1;
+ flags |= SIGNOK | NDIGITS | DPTOK | EXPOK;
+ for (p = buf; width; width--)
+ {
+ c = *fp->f_p;
+
+ /*
+ ** This code mimicks the integer conversion
+ ** code, but is much simpler.
+ */
+
+ switch (c)
+ {
+
+ case '0': case '1': case '2': case '3':
+ case '4': case '5': case '6': case '7':
+ case '8': case '9':
+ flags &= ~(SIGNOK | NDIGITS);
+ goto fok;
+
+ case '+': case '-':
+ if (flags & SIGNOK)
+ {
+ flags &= ~SIGNOK;
+ goto fok;
+ }
+ break;
+ case '.':
+ if (flags & DPTOK)
+ {
+ flags &= ~(SIGNOK | DPTOK);
+ goto fok;
+ }
+ break;
+ case 'e': case 'E':
+
+ /* no exponent without some digits */
+ if ((flags&(NDIGITS|EXPOK)) == EXPOK)
+ {
+ flags =
+ (flags & ~(EXPOK|DPTOK)) |
+ SIGNOK | NDIGITS;
+ goto fok;
+ }
+ break;
+ }
+ break;
+ fok:
+ *p++ = c;
+ if (--fp->f_r > 0)
+ fp->f_p++;
+ else if (sm_refill(fp, SM_TIME_FOREVER))
+ break; /* SM_IO_EOF */
+ }
+
+ /*
+ ** If no digits, might be missing exponent digits
+ ** (just give back the exponent) or might be missing
+ ** regular digits, but had sign and/or decimal point.
+ */
+
+ if (flags & NDIGITS)
+ {
+ if (flags & EXPOK)
+ {
+ /* no digits at all */
+ while (p > buf)
+ (void) sm_io_ungetc(fp,
+ SM_TIME_DEFAULT,
+ *(unsigned char *)--p);
+ goto match_failure;
+ }
+
+ /* just a bad exponent (e and maybe sign) */
+ c = *(unsigned char *) --p;
+ if (c != 'e' && c != 'E')
+ {
+ (void) sm_io_ungetc(fp, SM_TIME_DEFAULT,
+ c); /* sign */
+ c = *(unsigned char *)--p;
+ }
+ (void) sm_io_ungetc(fp, SM_TIME_DEFAULT, c);
+ }
+ if ((flags & SUPPRESS) == 0)
+ {
+ double res;
+
+ *p = 0;
+ res = strtod(buf, (char **) NULL);
+ if (flags & LONG)
+ *SM_VA_ARG(ap, double *) = res;
+ else
+ *SM_VA_ARG(ap, float *) = res;
+ nassigned++;
+ }
+ nread += p - buf;
+ break;
+ }
+ }
+input_failure:
+ if (evt != NULL)
+ sm_clrevent(evt); /* undo our timeout */
+ return nassigned ? nassigned : -1;
+match_failure:
+ if (evt != NULL)
+ sm_clrevent(evt); /* undo our timeout */
+ return nassigned;
+}
+
+/*
+** SM_SCCL -- sequenced character comparison list
+**
+** Fill in the given table from the scanset at the given format
+** (just after `['). Return a pointer to the character past the
+** closing `]'. The table has a 1 wherever characters should be
+** considered part of the scanset.
+**
+** Parameters:
+** tab -- array flagging "active" char's to match (returned)
+** fmt -- character list (within "[]")
+**
+** Results:
+*/
+
+static unsigned char *
+sm_sccl(tab, fmt)
+ register char *tab;
+ register unsigned char *fmt;
+{
+ register int c, n, v;
+
+ /* first `clear' the whole table */
+ c = *fmt++; /* first char hat => negated scanset */
+ if (c == '^')
+ {
+ v = 1; /* default => accept */
+ c = *fmt++; /* get new first char */
+ }
+ else
+ v = 0; /* default => reject */
+
+ /* should probably use memset here */
+ for (n = 0; n < 256; n++)
+ tab[n] = v;
+ if (c == 0)
+ return fmt - 1; /* format ended before closing ] */
+
+ /*
+ ** Now set the entries corresponding to the actual scanset
+ ** to the opposite of the above.
+ **
+ ** The first character may be ']' (or '-') without being special;
+ ** the last character may be '-'.
+ */
+
+ v = 1 - v;
+ for (;;)
+ {
+ tab[c] = v; /* take character c */
+doswitch:
+ n = *fmt++; /* and examine the next */
+ switch (n)
+ {
+
+ case 0: /* format ended too soon */
+ return fmt - 1;
+
+ case '-':
+ /*
+ ** A scanset of the form
+ ** [01+-]
+ ** is defined as `the digit 0, the digit 1,
+ ** the character +, the character -', but
+ ** the effect of a scanset such as
+ ** [a-zA-Z0-9]
+ ** is implementation defined. The V7 Unix
+ ** scanf treats `a-z' as `the letters a through
+ ** z', but treats `a-a' as `the letter a, the
+ ** character -, and the letter a'.
+ **
+ ** For compatibility, the `-' is not considerd
+ ** to define a range if the character following
+ ** it is either a close bracket (required by ANSI)
+ ** or is not numerically greater than the character
+ ** we just stored in the table (c).
+ */
+
+ n = *fmt;
+ if (n == ']' || n < c)
+ {
+ c = '-';
+ break; /* resume the for(;;) */
+ }
+ fmt++;
+ do
+ {
+ /* fill in the range */
+ tab[++c] = v;
+ } while (c < n);
+#if 1 /* XXX another disgusting compatibility hack */
+
+ /*
+ ** Alas, the V7 Unix scanf also treats formats
+ ** such as [a-c-e] as `the letters a through e'.
+ ** This too is permitted by the standard....
+ */
+
+ goto doswitch;
+#else
+ c = *fmt++;
+ if (c == 0)
+ return fmt - 1;
+ if (c == ']')
+ return fmt;
+ break;
+#endif
+
+ case ']': /* end of scanset */
+ return fmt;
+
+ default: /* just another character */
+ c = n;
+ break;
+ }
+ }
+ /* NOTREACHED */
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-10 12:17:46 +0000