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#include <errno.h>
#include <fcntl.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
int
main (int argc, char *argv[])
{
struct stat st;
static const char *pat[] = {
".?.?.?.?.?.?.?argc",
"(.?)(.?)(.?)(.?)(.?)(.?)(.?)argc",
"((((((((((.?))))))))))((((((((((.?))))))))))((((((((((.?))))))))))"
"((((((((((.?))))))))))((((((((((.?))))))))))((((((((((.?))))))))))"
"((((((((((.?))))))))))argc" };
size_t len;
int fd;
int testno, i, j, k, l;
char *string;
char *buf;
if (argc < 2)
abort ();
fd = open (argv[1], O_RDONLY);
if (fd < 0)
{
printf ("Couldn't open %s: %s\n", argv[1], strerror (errno));
abort ();
}
if (fstat (fd, &st) < 0)
{
printf ("Couldn't fstat %s: %s\n", argv[1], strerror (errno));
abort ();
}
buf = malloc (st.st_size + 1);
if (buf == NULL)
{
printf ("Couldn't allocate buffer: %s\n", strerror (errno));
abort ();
}
if (read (fd, buf, st.st_size) != (ssize_t) st.st_size)
{
printf ("Couldn't read %s", argv[1]);
abort ();
}
close (fd);
buf[st.st_size] = '\0';
string = buf;
len = st.st_size;
for (testno = 0; testno < 4; ++testno)
for (i = 0; i < sizeof (pat) / sizeof (pat[0]); ++i)
{
regex_t rbuf;
struct re_pattern_buffer rpbuf;
int err;
printf ("test %d pattern %d", testno, i);
if (testno < 2)
{
err = regcomp (&rbuf, pat[i],
REG_EXTENDED | (testno ? REG_NOSUB : 0));
if (err != 0)
{
char errstr[300];
putchar ('\n');
regerror (err, &rbuf, errstr, sizeof (errstr));
puts (errstr);
return err;
}
}
else
{
const char *s;
re_set_syntax (RE_SYNTAX_POSIX_EGREP
| (testno == 3 ? RE_NO_SUB : 0));
memset (&rpbuf, 0, sizeof (rpbuf));
s = re_compile_pattern (pat[i], strlen (pat[i]), &rpbuf);
if (s != NULL)
{
printf ("\n%s\n", s);
abort ();
}
/* Just so that this can be tested with earlier glibc as well. */
if (testno == 3)
rpbuf.no_sub = 1;
}
if (testno < 2)
{
regmatch_t pmatch[71];
err = regexec (&rbuf, string, 71, pmatch, 0);
if (err == REG_NOMATCH)
{
puts ("\nregexec failed");
abort ();
}
if (testno == 0)
{
if (pmatch[0].rm_eo != pmatch[0].rm_so + 11
|| pmatch[0].rm_eo > len
|| string + pmatch[0].rm_so >= strchr (string, 'R')
|| strncmp (string + pmatch[0].rm_so,
"n (int argc",
sizeof "n (int argc" - 1)
!= 0)
{
puts ("\nregexec without REG_NOSUB did not find the correct match");
abort ();
}
if (i > 0)
for (j = 0, l = 1; j < 7; ++j)
for (k = 0; k < (i == 1 ? 1 : 10); ++k, ++l)
if (pmatch[l].rm_so != pmatch[0].rm_so + j
|| pmatch[l].rm_eo != pmatch[l].rm_so + 1)
{
printf ("\npmatch[%d] incorrect\n", l);
abort ();
}
}
}
else
{
struct re_registers regs;
int match;
memset (®s, 0, sizeof (regs));
match = re_search (&rpbuf, string, len, 0, len,
®s);
if (match < 0)
{
puts ("\nre_search failed");
abort ();
}
if (match + 11 > len
|| string + match >= strchr (string, 'R')
|| strncmp (string + match,
"n (int argc",
sizeof "n (int argc" - 1)
!= 0)
{
puts ("\nre_search did not find the correct match");
abort ();
}
if (testno == 2)
{
if (regs.num_regs != 2 + (i == 0 ? 0 : i == 1 ? 7 : 70))
{
printf ("\nincorrect num_regs %d\n", regs.num_regs);
abort ();
}
if (regs.start[0] != match || regs.end[0] != match + 11)
{
printf ("\nincorrect regs.{start,end}[0] = { %d, %d}\n",
regs.start[0], regs.end[0]);
abort ();
}
if (regs.start[regs.num_regs - 1] != -1
|| regs.end[regs.num_regs - 1] != -1)
{
puts ("\nincorrect regs.{start,end}[num_regs - 1]");
abort ();
}
if (i > 0)
for (j = 0, l = 1; j < 7; ++j)
for (k = 0; k < (i == 1 ? 1 : 10); ++k, ++l)
if (regs.start[l] != match + j
|| regs.end[l] != regs.start[l] + 1)
{
printf ("\nregs.{start,end}[%d] incorrect\n", l);
abort ();
}
}
}
putchar ('\n');
if (testno < 2)
regfree (&rbuf);
else
regfree (&rpbuf);
}
exit (0);
}
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