diff options
Diffstat (limited to 'test/atomic_writer.c')
| -rw-r--r-- | test/atomic_writer.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/test/atomic_writer.c b/test/atomic_writer.c index 89edfe7..54aa2f4 100644 --- a/test/atomic_writer.c +++ b/test/atomic_writer.c @@ -31,6 +31,7 @@ #include <errno.h> #include <stdio.h> #include <stdlib.h> +#include <stdint.h> #include <string.h> #if !defined(WIN32) && !defined(__MINGW32__) @@ -184,13 +185,28 @@ main(int argc, char *argv[]) /* Write the series of integers to the file */ for (n = 0; n < num; n++) { + size_t seek_pos; /* Set up data to be written */ for (u = 0; u < num; u++) buf[u] = n; + seek_pos = n * sizeof(unsigned int); + if (sizeof(off_t) < 8) { + if (seek_pos > INT32_MAX) { + printf("WRITER: seek past range for lseek\n"); + goto error; + } + } + else { + if (seek_pos > INT64_MAX) { + printf("WRITER: seek past range for lseek\n"); + goto error; + } + } + /* Position the file to the proper location */ - if (lseek(fd, (n * sizeof(unsigned int)), SEEK_SET) < 0) { + if (lseek(fd, (off_t)seek_pos, SEEK_SET) < 0) { printf("WRITER: error from lseek\n"); goto error; } /* end if */ |