diff options
| -rw-r--r-- | c/README.md | 16 | ||||
| -rw-r--r-- | c/example.c | 16 |
2 files changed, 26 insertions, 6 deletions
diff --git a/c/README.md b/c/README.md index 5026b0d..5268818 100644 --- a/c/README.md +++ b/c/README.md @@ -7,7 +7,10 @@ result: ```c #include "blake3.h" +#include <errno.h> #include <stdio.h> +#include <stdlib.h> +#include <string.h> #include <unistd.h> int main() { @@ -17,9 +20,16 @@ int main() { // Read input bytes from stdin. unsigned char buf[65536]; - ssize_t n; - while ((n = read(STDIN_FILENO, buf, sizeof(buf))) > 0) { - blake3_hasher_update(&hasher, buf, n); + while (1) { + ssize_t n = read(STDIN_FILENO, buf, sizeof(buf)); + if (n > 0) { + blake3_hasher_update(&hasher, buf, n); + } else if (n == 0) { + break; // end of file + } else { + fprintf(stderr, "read failed: %s\n", strerror(errno)); + exit(1); + } } // Finalize the hash. BLAKE3_OUT_LEN is the default output length, 32 bytes. diff --git a/c/example.c b/c/example.c index 02fe3c3..0537548 100644 --- a/c/example.c +++ b/c/example.c @@ -1,5 +1,8 @@ #include "blake3.h" +#include <errno.h> #include <stdio.h> +#include <stdlib.h> +#include <string.h> #include <unistd.h> int main() { @@ -9,9 +12,16 @@ int main() { // Read input bytes from stdin. unsigned char buf[65536]; - ssize_t n; - while ((n = read(STDIN_FILENO, buf, sizeof(buf))) > 0) { - blake3_hasher_update(&hasher, buf, n); + while (1) { + ssize_t n = read(STDIN_FILENO, buf, sizeof(buf)); + if (n > 0) { + blake3_hasher_update(&hasher, buf, n); + } else if (n == 0) { + break; // end of file + } else { + fprintf(stderr, "read failed: %s\n", strerror(errno)); + exit(1); + } } // Finalize the hash. BLAKE3_OUT_LEN is the default output length, 32 bytes. |