diff options
| -rw-r--r-- | contrib/getdents/.gitignore | 1 | ||||
| -rw-r--r-- | contrib/getdents_c/.gitignore | 1 | ||||
| -rw-r--r-- | contrib/getdents_c/Makefile | 2 | ||||
| -rw-r--r-- | contrib/getdents_c/getdents.c | 39 | 
4 files changed, 43 insertions, 0 deletions
| diff --git a/contrib/getdents/.gitignore b/contrib/getdents/.gitignore new file mode 100644 index 0000000..6dae481 --- /dev/null +++ b/contrib/getdents/.gitignore @@ -0,0 +1 @@ +/getdents diff --git a/contrib/getdents_c/.gitignore b/contrib/getdents_c/.gitignore new file mode 100644 index 0000000..2f94993 --- /dev/null +++ b/contrib/getdents_c/.gitignore @@ -0,0 +1 @@ +/getdents_c diff --git a/contrib/getdents_c/Makefile b/contrib/getdents_c/Makefile new file mode 100644 index 0000000..95e47dc --- /dev/null +++ b/contrib/getdents_c/Makefile @@ -0,0 +1,2 @@ +getdents_c: *.c Makefile +	gcc getdents.c -o getdents_c diff --git a/contrib/getdents_c/getdents.c b/contrib/getdents_c/getdents.c new file mode 100644 index 0000000..98c2346 --- /dev/null +++ b/contrib/getdents_c/getdents.c @@ -0,0 +1,39 @@ +// See ../getdents/getdents.go for some info on why +// this exists. + +#include <fcntl.h> +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdint.h> +#include <sys/stat.h> +#include <sys/syscall.h> +#include <errno.h> + +int main(int argc, char *argv[]) +{ +    if(argc < 2) { +        printf("Usage: %s PATH\n", argv[0]); +        printf("Run getdents(2) on PATH\n"); +        exit(1); +    } + +    const char *path = argv[1]; +    int fd = open(path, O_RDONLY); +    if (fd == -1) { +        perror("open"); +        exit(1); +    } + +    char tmp[10000]; +    int sum = 0; +    for ( ; ; ) { +        int n = syscall(SYS_getdents64, fd, tmp, sizeof(tmp)); +        printf("getdents64 fd%d: n=%d, errno=%d\n", fd, n, errno); +        if (n <= 0) { +            printf("total %d bytes\n", sum); +            break; +        } +        sum += n; +    } +} | 
