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[PATCH] selinux patch

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https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=142713

/sbin/udevstart segfaults on an ATIIXP chipset which is not supported
well by the kernel yet. There, /proc/ide/hda/media can not be read
(EIO error) and udevstart seems to give a null-pointer to an SELinux
function checking the media-type.
This commit is contained in:
harald@redhat.com 2004-12-17 03:59:22 +01:00 committed by Greg KH
parent 83c35223ed
commit b817644b5b
1 changed files with 26 additions and 17 deletions
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43
selinux.h
View File

@ -30,31 +30,40 @@ static inline int selinux_get_media(char *path, int mode, char **media)
FILE *fp;
char buf[PATH_MAX];
char mediabuf[PATH_MAX];
int ret = -1;
*media = NULL;
if (!(mode && S_IFBLK)) {
return -1;
}
snprintf(buf,sizeof(buf), "/proc/ide/%s/media", basename(path));
snprintf(buf, sizeof(buf), "/proc/ide/%s/media", basename(path));
fp=fopen(buf,"r");
if (fp) {
if (fgets(mediabuf,sizeof(mediabuf), fp)) {
int size = strlen(mediabuf);
while (size-- > 0) {
if (isspace(mediabuf[size])) {
mediabuf[size]='\0';
} else {
break;
}
}
*media = strdup(mediabuf);
info("selinux_get_media(%s)->%s \n", path, *media);
if (!fp)
goto out;
mediabuf[0] = '\0';
if (fgets(mediabuf, sizeof(mediabuf), fp) == NULL)
goto close_out;
int size = strlen(mediabuf);
while (size-- > 0) {
if (isspace(mediabuf[size])) {
mediabuf[size]='\0';
} else {
break;
}
fclose(fp);
return 0;
} else {
return -1;
}
*media = strdup(mediabuf);
info("selinux_get_media(%s)->%s \n", path, *media);
ret = 0;
close_out:
fclose(fp);
out:
return ret;
}
static inline void selinux_setfilecon(char *file, unsigned int mode)