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check for mistyped env vars

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This commit is contained in:
van Hauser
2020-02-16 18:16:10 +01:00
parent 4cccdb89c0
commit 204059c61a
11 changed files with 75 additions and 16 deletions
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37
src/afl-common.c
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@ -29,6 +29,7 @@
#include "debug.h"
#include "alloc-inl.h"
#include "envs.h"
/* Detect @@ in args. */
#ifndef __glibc__
@ -276,3 +277,39 @@ char** get_wine_argv(u8* own_loc, char** argv, int argc) {
}
void check_environment_vars(char** envp) {
int index = 0, found = 0;
char* env;
while ((env = envp[index++]) != NULL) {
if (strncmp(env, "ALF_", 4) == 0) {
WARNF("Potentially mistyped AFL environment variable: %s", env);
found++;
} else if (strncmp(env, "AFL_", 4) == 0) {
int i = 0, match = 0;
while (match == 0 && afl_environment_variables[i] != NULL)
if (strncmp(env, afl_environment_variables[i],
strlen(afl_environment_variables[i])) == 0 &&
env[strlen(afl_environment_variables[i])] == '=')
match = 1;
else
i++;
if (match == 0) {
WARNF("Mistyped AFL environment variable: %s", env);
found++;
}
}
}
if (found) sleep(2);
}