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