blob: bba511795a69a2fc46fbba5386cf467bf3fe26ce (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int find_map(void **start, void **end, const char *name)
{
FILE *maps;
char *line = NULL;
size_t len = 0;
int found = 0;
maps = fopen("/proc/self/maps", "r");
if (!maps) {
fprintf(stderr, "cannot open maps\n");
return -1;
}
while (!found && getline(&line, &len, maps) != -1) {
int m = -1;
/* We care only about private r-x mappings. */
if (2 != sscanf(line, "%p-%p r-xp %*x %*x:%*x %*u %n",
start, end, &m))
continue;
if (m < 0)
continue;
if (!strncmp(&line[m], name, strlen(name)))
found = 1;
}
free(line);
fclose(maps);
return !found;
}
|
