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authorUlrich Drepper <drepper@redhat.com>2000-10-31 05:20:53 +0000
committerUlrich Drepper <drepper@redhat.com>2000-10-31 05:20:53 +0000
commitde153e7f50baa4ea7fac013f3b77b3a4fe314664 (patch)
tree50fb80d978c873cb63952226707a8683ba31e929 /stdio-common/tst-fmemopen.c
parent02fb3d179ddd3c88f4d4f31d4b27948b48bced2b (diff)
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Update.
* stdio-common/Makefile (tests): Add tst-fmemopen. * stdio-common/tst-fmemopen.c: New file. Test case by Ben Collins <bcollins@debian.org>. * libio/iofopncook.c (_IO_cookie_seek): Correct test for error. * libio/fmemopen.c (fmemopen_read): Return 0 at end of buffer. (fmemopen_write): Set errno at end of buffer.
Diffstat (limited to 'stdio-common/tst-fmemopen.c')
-rw-r--r--stdio-common/tst-fmemopen.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/stdio-common/tst-fmemopen.c b/stdio-common/tst-fmemopen.c
new file mode 100644
index 0000000..f22ebd5
--- /dev/null
+++ b/stdio-common/tst-fmemopen.c
@@ -0,0 +1,111 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#define TEST_FILE "test-1"
+
+int
+main (void)
+{
+ const char blah[] = "BLAH";
+ FILE *fp;
+ char *mmap_data;
+ int ch, fd;
+ struct stat fs;
+ const char *cp;
+
+ /* setup the physical file, and use it */
+ if ((fp = fopen (TEST_FILE, "w+")) == NULL)
+ exit (1);
+ if (fwrite (blah, 1, strlen (blah), fp) != strlen (blah))
+ exit (2);
+
+ rewind (fp);
+ printf ("file: ");
+ cp = blah;
+ while ((ch = getc (fp)) != EOF)
+ {
+ fputc (ch, stdout);
+ if (ch != *cp)
+ {
+ printf ("\ncharacter %d: '%c' instead of '%c'\n",
+ cp - blah, ch, *cp);
+ exit (1);
+ }
+ ++cp;
+ }
+ fputc ('\n', stdout);
+ if (ferror (fp))
+ {
+ puts ("fp: error");
+ exit (1);
+ }
+ if (feof (fp))
+ printf ("fp: EOF\n");
+ else
+ {
+ puts ("not EOF");
+ exit (1);
+ }
+ fclose (fp);
+
+ /* Now, mmap the file into a buffer, and do that too */
+ if ((fd = open (TEST_FILE, O_RDONLY)) == -1)
+ exit (3);
+ if (fstat (fd, &fs) == -1)
+ exit (4);
+
+ if ((mmap_data = (char *) mmap (NULL, fs.st_size, PROT_READ,
+ MAP_SHARED, fd, 0)) == NULL)
+ {
+ if (errno == ENOSYS)
+ exit (0);
+ exit (5);
+ }
+
+ if ((fp = fmemopen (mmap_data, fs.st_size, "r")) == NULL)
+ exit (1);
+
+ printf ("mem: ");
+ cp = blah;
+ while ((ch = getc (fp)) != EOF)
+ {
+ fputc (ch, stdout);
+ if (ch != *cp)
+ {
+ printf ("%d character: '%c' instead of '%c'\n",
+ cp - blah, ch, *cp);
+ exit (1);
+ }
+ ++cp;
+ }
+
+ fputc ('\n', stdout);
+
+ if (ferror (fp))
+ {
+ puts ("fp: error");
+ exit (1);
+ }
+ if (feof (fp))
+ printf ("fp: EOF\n");
+ else
+ {
+ puts ("not EOF");
+ exit (1);
+ }
+
+ fclose (fp);
+
+ munmap (mmap_data, fs.st_size);
+
+ unlink (TEST_FILE);
+
+ return 0;
+}