mirror of
https://github.com/carlospolop/hacktricks
synced 2024-12-13 14:53:03 +00:00
37 lines
849 B
C
37 lines
849 B
C
// gcc consumer.c -o consumer -lrt
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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int main() {
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const char *name = "/my_shared_memory";
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const int SIZE = 4096; // Size of the shared memory object
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// Open the shared memory object
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int shm_fd = shm_open(name, O_RDONLY, 0666);
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if (shm_fd == -1) {
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perror("shm_open");
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return EXIT_FAILURE;
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}
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// Memory map the shared memory
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void *ptr = mmap(0, SIZE, PROT_READ, MAP_SHARED, shm_fd, 0);
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if (ptr == MAP_FAILED) {
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perror("mmap");
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return EXIT_FAILURE;
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}
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// Read from the shared memory
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printf("Consumer received: %s\n", (char *)ptr);
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// Cleanup
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munmap(ptr, SIZE);
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close(shm_fd);
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shm_unlink(name); // Optionally unlink
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return 0;
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}
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