diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/vsnprintf.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/vsnprintf.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/vsnprintf.c b/nx-X11/extras/Mesa/src/mesa/main/vsnprintf.c deleted file mode 100644 index ab6c740d7..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/vsnprintf.c +++ /dev/null @@ -1,165 +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. - */ - -#ifndef __VMS -# include <sys/param.h> -#endif -#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> -#include <unistd.h> -#include <string.h> - -#ifndef roundup -#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) -#endif - -#ifdef __sgi -#define size_t ssize_t -#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( int a ) -{ - 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); -} - - - |