diff options
| -rw-r--r-- | regress/lib/libc/open_memstream/open_memstreamtest.c | 70 |
1 files changed, 58 insertions, 12 deletions
diff --git a/regress/lib/libc/open_memstream/open_memstreamtest.c b/regress/lib/libc/open_memstream/open_memstreamtest.c index 09194908e9b..b9c0221b1a5 100644 --- a/regress/lib/libc/open_memstream/open_memstreamtest.c +++ b/regress/lib/libc/open_memstream/open_memstreamtest.c @@ -1,4 +1,4 @@ -/* $OpenBSD: open_memstreamtest.c,v 1.1 2013/01/01 17:43:07 mpi Exp $ */ +/* $OpenBSD: open_memstreamtest.c,v 1.2 2013/03/25 03:33:28 guenther Exp $ */ /* * Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org> * @@ -23,6 +23,9 @@ #define OFFSET 16384 +const char start[] = "start"; +const char hello[] = "hello"; + int main(void) { @@ -30,7 +33,7 @@ main(void) char *buf = (char *)0xff; size_t size = 0; off_t off; - int i = 0, failures = 0; + int i, failures = 0; if ((fp = open_memstream(&buf, &size)) == NULL) { warn("open_memstream failed"); @@ -63,31 +66,74 @@ main(void) failures++; } - if (fprintf(fp, "hello") == EOF) { + if (fprintf(fp, hello) == EOF) { warnx("fprintf failed. (6)"); failures++; } - if (fclose(fp) == EOF) { - warnx("fclose failed. (7)"); + if (fflush(fp) == EOF) { + warnx("fflush failed. (7)"); + failures++; + } + + if (size != OFFSET + sizeof(hello)-1) { + warnx("failed, size %zu should be %u. (8)", + size, OFFSET + sizeof(hello)-1); + failures++; + } + + if (fseek(fp, 0, SEEK_SET) != 0) { + warnx("failed to fseek. (9)"); + failures++; + } + + if (fprintf(fp, start) == EOF) { + warnx("fprintf failed. (10)"); + failures++; + } + + if (fflush(fp) == EOF) { + warnx("fflush failed. (11)"); failures++; } - if (size != OFFSET + 5) { - warnx("failed, size %zu should be %u\n", size, OFFSET + 5); + if (size != sizeof(start)-1) { + warnx("failed, size %zu should be %u. (12)", + size, sizeof(start)-1); failures++; } /* Needed for sparse files */ - while (i != OFFSET) - if (buf[i++] != '\0') { - warnx("failed, buffer non zero'ed (offset %d). (8)", i); + if (strncmp(buf, start, sizeof(start)-1) != 0) { + warnx("failed, buffer didn't start with '%s'. (13)", start); + failures++; + } + for (i = sizeof(start)-1; i < OFFSET; i++) + if (buf[i] != '\0') { + warnx("failed, buffer non zero (offset %d). (14)", i); failures++; break; } - if (memcmp(buf + OFFSET, "hello", 5) != 0) { - warnx("written string incorrect. (9)"); + if (memcmp(buf + OFFSET, hello, sizeof(hello)-1) != 0) { + warnx("written string incorrect. (15)"); + failures++; + } + + /* verify that simply seeking past the end doesn't increase the size */ + if (fseek(fp, 100, SEEK_END) != 0) { + warnx("failed to fseek. (16)"); + failures++; + } + + if (fclose(fp) == EOF) { + warnx("fclose failed. (17)"); + failures++; + } + + if (size != OFFSET + sizeof(hello)-1) { + warnx("failed, size %zu should be %u. (18)", + size, OFFSET + sizeof(hello)-1); failures++; } |