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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 13:40:54 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 13:40:54 +0000 |
commit | 317c0644ccf108aa23ef3fd8358bd66c2840bfc0 (patch) | |
tree | c417b3d25c86b775989cb5ac042f37611b626c8a /utils/corrupt_rdb.c | |
parent | Initial commit. (diff) | |
download | redis-upstream/5%7.2.4.tar.xz redis-upstream/5%7.2.4.zip |
Adding upstream version 5:7.2.4.upstream/5%7.2.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | utils/corrupt_rdb.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/utils/corrupt_rdb.c b/utils/corrupt_rdb.c new file mode 100644 index 0000000..df9c93e --- /dev/null +++ b/utils/corrupt_rdb.c @@ -0,0 +1,45 @@ +/* Trivia program to corrupt an RDB file in order to check the RDB check + * program behavior and effectiveness. + * + * Copyright (C) 2016 Salvatore Sanfilippo. + * This software is released in the 3-clause BSD license. */ + +#include <stdio.h> +#include <fcntl.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <unistd.h> +#include <time.h> + +int main(int argc, char **argv) { + struct stat stat; + int fd, cycles; + + if (argc != 3) { + fprintf(stderr,"Usage: <filename> <cycles>\n"); + exit(1); + } + + srand(time(NULL)); + char *filename = argv[1]; + cycles = atoi(argv[2]); + fd = open(filename,O_RDWR); + if (fd == -1) { + perror("open"); + exit(1); + } + fstat(fd,&stat); + + while(cycles--) { + unsigned char buf[32]; + unsigned long offset = rand()%stat.st_size; + int writelen = 1+rand()%31; + int j; + + for (j = 0; j < writelen; j++) buf[j] = (char)rand(); + lseek(fd,offset,SEEK_SET); + printf("Writing %d bytes at offset %lu\n", writelen, offset); + write(fd,buf,writelen); + } + return 0; +} |