55 lines
895 B
C
55 lines
895 B
C
#include <unistd.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include "selinux_internal.h"
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#include "policy.h"
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#include <limits.h>
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#define SELINUX_INITCON_DIR "/initial_contexts/"
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int security_get_initial_context(const char * name, char ** con)
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{
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char path[PATH_MAX];
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char *buf;
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size_t size;
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int fd, ret;
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if (!selinux_mnt) {
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errno = ENOENT;
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return -1;
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}
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snprintf(path, sizeof path, "%s%s%s",
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selinux_mnt, SELINUX_INITCON_DIR, name);
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fd = open(path, O_RDONLY);
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if (fd < 0)
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return -1;
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size = selinux_page_size;
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buf = malloc(size);
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if (!buf) {
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ret = -1;
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goto out;
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}
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memset(buf, 0, size);
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ret = read(fd, buf, size - 1);
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if (ret < 0)
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goto out2;
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*con = strdup(buf);
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if (!(*con)) {
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ret = -1;
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goto out2;
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}
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ret = 0;
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out2:
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free(buf);
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out:
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close(fd);
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return ret;
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}
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