LINUX下正则表达式匹配IP地址

我爱佳娃 — Wed, 04 Apr 2007 08:47:00 GMT

regex_t rt1_;

int cflags = RE_SYNTAX_AWK;
cflags &= ~REG_NOSUB;

if (regcomp (&rt1_, // match: Interesting ports on 10.45.8.12:
  "([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\\.([0-9]{1,2}|1[0-9][0-9]|2[0-4][0-9]|25[0-5])",
  cflags) != 0)
{
     ulogEx(ULOG_LL_WARNING, MESW_DEV_NM,MON_ULOG_MID,MON_ULOG_EC_TRACE,
      "%s: reg comp error!\n\n", __func__);
}

static char ip [32];

regmatch_t rm [1];
memset (&rm, 0, sizeof rm);
if (0 == regexec (&rt1_, pline, 1, rm, 0))
{
  strncpy (ip, &pline[rm[0].rm_so], rm[0].rm_eo-rm[0].rm_so+1);
  ip [rm[0].rm_eo-rm[0].rm_so] = '\0';

  return ip;
}
else
  return NULL;

regfree (&rt1_);

我爱佳娃 2007-04-04 16:47 发表评论

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LINUX下正则表达式匹配IP地址