blob: 46cba468cf77ec888d3068ec983602ad2148b5cb [file] [log] [blame] [edit]
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <string.h>
#include "selinux_internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <regex.h>
#include <stdarg.h>
int matchmediacon(const char *media, char ** con)
{
const char *path = selinux_media_context_path();
FILE *infile;
char *ptr, *ptr2 = NULL;
int found = 0;
char current_line[PATH_MAX];
if ((infile = fopen(path, "r")) == NULL)
return -1;
while (!feof_unlocked(infile)) {
if (!fgets_unlocked(current_line, sizeof(current_line), infile)) {
return -1;
}
if (current_line[strlen(current_line) - 1])
current_line[strlen(current_line) - 1] = 0;
/* Skip leading whitespace before the partial context. */
ptr = current_line;
while (*ptr && isspace(*ptr))
ptr++;
if (!(*ptr))
continue;
/* Find the end of the media context. */
ptr2 = ptr;
while (*ptr2 && !isspace(*ptr2))
ptr2++;
if (!(*ptr2))
continue;
*ptr2++ = 0;
if (strcmp(media, ptr) == 0) {
found = 1;
break;
}
}
fclose(infile);
if (!found)
return -1;
/* Skip whitespace. */
while (*ptr2 && isspace(*ptr2))
ptr2++;
if (!(*ptr2)) {
return -1;
}
if (selinux_raw_to_trans_context(ptr2, con)) {
*con = NULL;
return -1;
}
return 0;
}