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-rw-r--r--support/vsnprintf.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/support/vsnprintf.c b/support/vsnprintf.c
deleted file mode 100644
index a2dfb4e..0000000
--- a/support/vsnprintf.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Revision 12: http://theos.com/~deraadt/snprintf.c
- *
- * Copyright (c) 1997 Theo de Raadt
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <signal.h>
-#include <stdio.h>
-#if __STDC__
-#include <stdarg.h>
-#include <stdlib.h>
-#else
-#include <varargs.h>
-#endif
-#include <setjmp.h>
-
-#ifndef roundup
-#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
-#endif
-
-static int pgsize;
-static char *curobj;
-static int caught;
-static sigjmp_buf bail;
-
-#define EXTRABYTES 2 /* XXX: why 2? you don't want to know */
-
-static char *
-msetup(str, n)
- char *str;
- size_t n;
-{
- char *e;
-
- if (n == 0)
- return NULL;
- if (pgsize == 0)
- pgsize = getpagesize();
- curobj = (char *)malloc(n + EXTRABYTES + pgsize * 2);
- if (curobj == NULL)
- return NULL;
- e = curobj + n + EXTRABYTES;
- e = (char *)roundup((unsigned long)e, pgsize);
- if (mprotect(e, pgsize, PROT_NONE) == -1) {
- free(curobj);
- curobj = NULL;
- return NULL;
- }
- e = e - n - EXTRABYTES;
- *e = '\0';
- return (e);
-}
-
-static void
-mcatch()
-{
- siglongjmp(bail, 1);
-}
-
-static void
-mcleanup(str, n, p)
- char *str;
- size_t n;
- char *p;
-{
- strncpy(str, p, n-1);
- str[n-1] = '\0';
- if (mprotect((caddr_t)(p + n + EXTRABYTES), pgsize,
- PROT_READ|PROT_WRITE|PROT_EXEC) == -1)
- mprotect((caddr_t)(p + n + EXTRABYTES), pgsize,
- PROT_READ|PROT_WRITE);
- free(curobj);
-}
-
-int
-#if __STDC__
-vsnprintf(char *str, size_t n, char const *fmt, va_list ap)
-#else
-vsnprintf(str, n, fmt, ap)
- char *str;
- size_t n;
- char *fmt;
- char *ap;
-#endif
-{
- struct sigaction osa, nsa;
- char *p;
- int ret = n + 1; /* if we bail, indicated we overflowed */
-
- memset(&nsa, 0, sizeof nsa);
- nsa.sa_handler = mcatch;
- sigemptyset(&nsa.sa_mask);
-
- p = msetup(str, n);
- if (p == NULL) {
- *str = '\0';
- return 0;
- }
- if (sigsetjmp(bail, 1) == 0) {
- if (sigaction(SIGSEGV, &nsa, &osa) == -1) {
- mcleanup(str, n, p);
- return (0);
- }
- ret = vsprintf(p, fmt, ap);
- }
- mcleanup(str, n, p);
- (void) sigaction(SIGSEGV, &osa, NULL);
- return (ret);
-}
-
-int
-#if __STDC__
-snprintf(char *str, size_t n, char const *fmt, ...)
-#else
-snprintf(str, n, fmt, va_alist)
- char *str;
- size_t n;
- char *fmt;
- va_dcl
-#endif
-{
- va_list ap;
-#if __STDC__
- va_start(ap, fmt);
-#else
- va_start(ap);
-#endif
-
- return (vsnprintf(str, n, fmt, ap));
- va_end(ap);
-}
-
-
-