39 lines
535 B
C
39 lines
535 B
C
#include <pthread.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <errno.h>
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#define LOOPS 1000
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uid_t uid;
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void *subthread(void *dummy)
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{
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setuid(uid);
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}
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int main(void)
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{
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pthread_t tid[LOOPS];
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int i, ret;
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uid = getuid();
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for(i=0; i < LOOPS; i++) {
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ret = pthread_create(&tid[i], NULL, &subthread, NULL);
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if(ret != 0) {
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perror("pthread_create");
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return 1;
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}
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}
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for(i=0; i < LOOPS; i++) {
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ret = pthread_join(tid[i], NULL);
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if(ret != 0) {
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perror("pthread_join");
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}
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}
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return 0;
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}
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