diff options
Diffstat (limited to 'gnulib/tests/test-ptsname_r.c')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/tests/test-ptsname_r.c | 240 |
2 files changed, 240 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/tests/test-ptsname_r.c b/gnulib/tests/test-ptsname_r.c new file mode 100644 index 0000000..76521fe --- /dev/null +++ b/gnulib/tests/test-ptsname_r.c @@ -0,0 +1,240 @@ +/* Test of ptsname_r(3). + Copyright (C) 2010-2011 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +#include <stdlib.h> + +#include "signature.h" +SIGNATURE_CHECK (ptsname_r, int, (int, char *, size_t)); + +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/stat.h> + +#include "same-inode.h" + +#include "macros.h" + +/* Compare two slave names. + On some systems, there are hard links in the /dev/ directory. + For example, on OSF/1 5.1, + /dev/ttyp0 == /dev/pts/0 + /dev/ttyp9 == /dev/pts/9 + /dev/ttypa == /dev/pts/10 + /dev/ttype == /dev/pts/14 + */ +static int +same_slave (const char *slave_name1, const char *slave_name2) +{ + struct stat statbuf1; + struct stat statbuf2; + + return (strcmp (slave_name1, slave_name2) == 0 + || (stat (slave_name1, &statbuf1) >= 0 + && stat (slave_name2, &statbuf2) >= 0 + && SAME_INODE (statbuf1, statbuf2))); +} + +static char * +null_ptr (void) +{ + return NULL; +} + +static void +test_errors (int fd, const char *slave) +{ + char buffer[256]; + size_t len; + size_t buflen_max; + size_t buflen; + int result; + + len = strlen (slave); + buflen_max = len + 5; + if (buflen_max > sizeof buffer) + buflen_max = sizeof buffer; + for (buflen = 0; buflen <= buflen_max; buflen++) + { + memset (buffer, 'X', sizeof buffer); + errno = 0; + result = ptsname_r (fd, buffer, buflen); + if (buflen > len) + { + ASSERT (result == 0); + ASSERT (buffer[0] == '/'); + } + else + { + ASSERT (result != 0); + ASSERT (result == errno); + ASSERT (errno == ERANGE); + ASSERT (buffer[0] == 'X'); + } + } + + errno = 0; + result = ptsname_r (fd, null_ptr (), 0); + ASSERT (result != 0); + ASSERT (result == errno); + ASSERT (errno == EINVAL); +} + +int +main (void) +{ +#if HAVE_DECL_ALARM + /* Declare failure if test takes too long, by using default abort + caused by SIGALRM. */ + signal (SIGALRM, SIG_DFL); + alarm (5); +#endif + + { + char buffer[256]; + int result; + + errno = 0; + result = ptsname_r (-1, buffer, sizeof buffer); + ASSERT (result != 0); + ASSERT (result == errno); + ASSERT (errno == EBADF || errno == ENOTTY); + } + + { + int fd; + char buffer[256]; + int result; + + /* Open the controlling tty of the current process. */ + fd = open ("/dev/tty", O_RDONLY); + if (fd < 0) + { + fprintf (stderr, "Skipping test: cannot open controlling tty\n"); + return 77; + } + + result = ptsname_r (fd, buffer, sizeof buffer); + /* The result is usually NULL, because /dev/tty is a slave, not a + master. */ + if (result == 0) + { + ASSERT (memcmp (buffer, "/dev/", 5) == 0); + } + + close (fd); + } + +#if defined __sun + /* Solaris has BSD-style /dev/pty[p-r][0-9a-f] files, but the function + ptsname() does not work on them. */ + { + int fd; + char buffer[256]; + int result; + + /* Open the controlling tty of the current process. */ + fd = open ("/dev/ptmx", O_RDWR | O_NOCTTY); + if (fd < 0) + { + fprintf (stderr, "Skipping test: cannot open pseudo-terminal\n"); + return 77; + } + + result = ptsname_r (fd, buffer, sizeof buffer); + ASSERT (result == 0); + ASSERT (memcmp (buffer, "/dev/pts/", 9) == 0); + + test_errors (fd, buffer); + + close (fd); + } + +#else + + /* Try various master names of MacOS X: /dev/pty[p-w][0-9a-f] */ + { + int char1; + int char2; + + for (char1 = 'p'; char1 <= 'w'; char1++) + for (char2 = '0'; char2 <= 'f'; (char2 == '9' ? char2 = 'a' : char2++)) + { + char master_name[32]; + int fd; + + sprintf (master_name, "/dev/pty%c%c", char1, char2); + fd = open (master_name, O_RDONLY); + if (fd >= 0) + { + char buffer[256]; + int result; + char slave_name[32]; + + result = ptsname_r (fd, buffer, sizeof buffer); + ASSERT (result == 0); + sprintf (slave_name, "/dev/tty%c%c", char1, char2); + ASSERT (same_slave (buffer, slave_name)); + + test_errors (fd, buffer); + + close (fd); + } + } + } + + /* Try various master names of *BSD: /dev/pty[p-sP-S][0-9a-v] */ + { + int upper; + int char1; + int char2; + + for (upper = 0; upper <= 1; upper++) + for (char1 = (upper ? 'P' : 'p'); char1 <= (upper ? 'S' : 's'); char1++) + for (char2 = '0'; char2 <= 'v'; (char2 == '9' ? char2 = 'a' : char2++)) + { + char master_name[32]; + int fd; + + sprintf (master_name, "/dev/pty%c%c", char1, char2); + fd = open (master_name, O_RDONLY); + if (fd >= 0) + { + char buffer[256]; + int result; + char slave_name[32]; + + result = ptsname_r (fd, buffer, sizeof buffer); + ASSERT (result == 0); + sprintf (slave_name, "/dev/tty%c%c", char1, char2); + ASSERT (same_slave (buffer, slave_name)); + + test_errors (fd, buffer); + + close (fd); + } + } + } + +#endif + + return 0; +} |