diff options
Diffstat (limited to 'usr.bin/printf/printf.c')
| -rw-r--r-- | usr.bin/printf/printf.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/usr.bin/printf/printf.c b/usr.bin/printf/printf.c index 8569f5f..7ed0c21 100644 --- a/usr.bin/printf/printf.c +++ b/usr.bin/printf/printf.c @@ -1,4 +1,5 @@ /*- + * Copyright 2010 Nexenta Systems, Inc. All rights reserved. * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * @@ -69,6 +70,11 @@ static const char rcsid[] = #define PF(f, func) do { \ char *b = NULL; \ + int dollar = 0; \ + if (*f == '$') { \ + dollar++; \ + *f = '%'; \ + } \ if (havewidth) \ if (haveprec) \ (void)asprintf(&b, f, fieldwidth, precision, func); \ @@ -82,6 +88,8 @@ static const char rcsid[] = (void)fputs(b, stdout); \ free(b); \ } \ + if (dollar) \ + *f = '$'; \ } while (0) static int asciicode(void); @@ -96,6 +104,8 @@ static const char static char *mknum(char *, char); static void usage(void); +static int myargc; +static char **myargv; static char **gargv; int @@ -146,7 +156,13 @@ main(int argc, char *argv[]) chopped = escape(fmt, 1, &len); /* backslash interpretation */ rval = end = 0; gargv = ++argv; + for (;;) { + char **maxargv = gargv; + + myargv = gargv; + for (myargc = 0; gargv[myargc]; myargc++) + /* nop */; start = fmt; while (fmt < format + len) { if (fmt[0] == '%') { @@ -168,7 +184,10 @@ main(int argc, char *argv[]) start = fmt; } else fmt++; + if (gargv > maxargv) + maxargv = gargv; } + gargv = maxargv; if (end == 1) { warnx("missing format character"); @@ -202,6 +221,22 @@ printf_doformat(char *start, int *rval) char convch, nextch; fmt = start + 1; + + /* look for "n$" field index specifier */ + fmt += strspn(fmt, skip2); + if ((*fmt == '$') && (fmt != (start + 1))) { + int idx = atoi(start + 1); + if (idx <= myargc) { + gargv = &myargv[idx - 1]; + } else { + gargv = &myargv[myargc]; + } + start = fmt; + fmt++; + } else { + fmt = start + 1; + } + /* skip to field width */ fmt += strspn(fmt, skip1); if (*fmt == '*') { |
