diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/linux/lnx_kmod.c')
-rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/linux/lnx_kmod.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/linux/lnx_kmod.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/linux/lnx_kmod.c deleted file mode 100644 index c211d115a..000000000 --- a/nx-X11/programs/Xserver/hw/xfree86/os-support/linux/lnx_kmod.c +++ /dev/null @@ -1,113 +0,0 @@ -/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_kmod.c,v 3.5 2001/10/01 13:44:14 eich Exp $ */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#include <sys/wait.h> -#include <signal.h> -#include "xf86_OSlib.h" -#include "xf86.h" - - -#define MODPROBE_PATH_FILE "/proc/sys/kernel/modprobe" -#define MAX_PATH 1024 - - -#if 0 -/* XFree86 #defines execl to be the xf86execl() function which does - * a fork AND exec. We don't want that. We want the regular, - * standard execl(). - */ -#ifdef execl -#undef execl -#endif -#endif - - -/* - * Load a Linux kernel module. - * This is used by the DRI/DRM to load a DRM kernel module when - * the X server starts. It could be used for other purposes in the future. - * Input: - * modName - name of the kernel module (Ex: "tdfx") - * Return: - * 0 for failure, 1 for success - */ -int -xf86LoadKernelModule(const char *modName) -{ - char mpPath[MAX_PATH] = ""; - int fd = -1, status, n; - pid_t pid; - - /* get the path to the modprobe program */ - fd = open(MODPROBE_PATH_FILE, O_RDONLY); - if (fd >= 0) { - int count = read(fd, mpPath, MAX_PATH - 1); - if (count <= 0) { - mpPath[0] = 0; - } - else if (mpPath[count - 1] == '\n') { - mpPath[count - 1] = 0; /* replaces \n with \0 */ - } - close(fd); - /* if this worked, mpPath will be "/sbin/modprobe" or similar. */ - } - - if (mpPath[0] == 0) { - /* we failed to get the path from the system, use a default */ - strcpy(mpPath, "/sbin/modprobe"); - } - - /* now fork/exec the modprobe command */ - /* - * It would be good to capture stdout/stderr so that it can be directed - * to the log file. modprobe errors currently are missing from the log - * file. - */ - switch (pid = fork()) { - case 0: /* child */ - /* change real/effective user ID to 0/0 as we need to - * preinstall agpgart module for some DRM modules - */ - if (setreuid(0,0)) { - xf86Msg(X_WARNING,"LoadKernelModule: " - "Setting of real/effective user Id to 0/0 failed"); - } - setenv("PATH","/sbin",1); - n = execl(mpPath, "modprobe", modName, NULL); - xf86Msg(X_WARNING,"LoadKernelModule %s\n",strerror(errno)); - exit(EXIT_FAILURE); /* if we get here the child's exec failed */ - break; - case -1: /* fork failed */ - return 0; - default: /* fork worked */ - { - /* XXX we loop over waitpid() because it sometimes fails on - * the first attempt. Don't know why! - */ - int count = 0, p; - do { - p = waitpid(pid, &status, 0); - } while (p == -1 && count++ < 4); - - if (p == -1) { - return 0; - } - - if (WIFEXITED(status) && WEXITSTATUS(status) == 0) { - return 1; /* success! */ - } - else { - return 0; - } - } - } - - /* never get here */ - return 0; -} |