--- /dev/null
+/*
+* Copyright (c) 1983, 1993 The Regents of the University of California.
+* Copyright (c) 1993 Digital Equipment Corporation.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+* 1. Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* 2. Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in the
+* documentation and/or other materials provided with the distribution.
+* 3. All advertising materials mentioning features or use of this software
+* must display the following acknowledgement:
+* This product includes software developed by the University of
+* California, Berkeley and its contributors.
+* 4. Neither the name of the University nor the names of its contributors
+* may be used to endorse or promote products derived from this software
+* without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+* SUCH DAMAGE.
+*/
+
+#ifndef _GETSERVENT_H
+#define _GETSERVENT_H
+
+#ifdef _NETDB_H_
+/* Just in case... */
+#error netdb.h and getservent.h are incompatible
+#else
+#define _NETDB_H_
+#endif
+
+#ifdef _WIN32
+#define __PATH_SYSROOT "SYSTEMROOT"
+#define __PATH_ETC_INET "\\System32\\drivers\\etc\\"
+#define __PATH_SERVICES "services"
+#else
+/*
+* The idea here is to be able to replace "PREFIX" in __PATH_SYSROOT with a variable
+* that could, for example, point to an alternative install location.
+*/
+#define __PATH_SYSROOT "PREFIX"
+#define __PATH_ETC_INET "/etc/"
+#define __PATH_SERVICES __PATH_SYSROOT__PATH_ETC_INET"services"
+#endif
+
+#define MAXALIASES 35
+
+void endservent (void);
+struct servent *getservent(void);
+void setservent (int f);
+
+#endif /* !_GETSERVENT_H */
--- /dev/null
+/*
+ * Copyright (c) 1983, 1993 The Regents of the University of California.
+ * Copyright (c) 1993 Digital Equipment Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <netdissect-stdinc.h>
+#include <getservent.h>
+
+static FILE *servf = NULL;
+static char line[BUFSIZ+1];
+static struct servent serv;
+static char *serv_aliases[MAXALIASES];
+int _serv_stayopen;
+const char *etc_path(const char *file);
+
+/*
+* Return either "%SYSTEMROOT%\System32\drivers\etc\<file>",
+* $PREFIX/etc/<file> or simply "<file>" if those failed.
+* "<file>" is aka __PATH_SERVICES (aka "services" on Windows and
+* "/etc/services" on other platforms that would need this)
+*/
+const char *etc_path(const char *file)
+{
+ const char *env = getenv(__PATH_SYSROOT);
+ static char path[_MAX_PATH];
+
+ if (!env)
+/*
+* #ifdef _DEBUG
+* printf("Warning: Environment Variable \"%s\" invalid\nResorting to [CurrentDirectory]/%s\n",
+* __PATH_SYSROOT, file);
+* #endif
+*/
+ return (file);
+
+ snprintf(path, sizeof(path), "%s%s%s", env, __PATH_ETC_INET, file);
+ return (path);
+}
+
+void
+setservent(int f)
+{
+ if (servf == NULL)
+ servf = fopen(etc_path(__PATH_SERVICES), "r");
+ else
+ rewind(servf);
+ _serv_stayopen |= f;
+}
+
+void
+endservent(void)
+{
+ if (servf) {
+ fclose(servf);
+ servf = NULL;
+ }
+ _serv_stayopen = 0;
+}
+
+struct servent *
+getservent(void)
+{
+ char *p;
+ register char *cp, **q;
+
+ if (servf == NULL && (servf = fopen(etc_path(__PATH_SERVICES), "r")) == NULL)
+ return (NULL);
+
+again:
+ if ((p = fgets(line, BUFSIZ, servf)) == NULL)
+ return (NULL);
+ if (*p == '#')
+ goto again;
+ cp = strpbrk(p, "#\n");
+ if (cp == NULL)
+ goto again;
+ *cp = '\0';
+ serv.s_name = p;
+ p = strpbrk(p, " \t");
+ if (p == NULL)
+ goto again;
+ *p++ = '\0';
+ while (*p == ' ' || *p == '\t')
+ p++;
+ cp = strpbrk(p, ",/");
+ if (cp == NULL)
+ goto again;
+ *cp++ = '\0';
+ serv.s_port = htons((u_short)atoi(p));
+ serv.s_proto = cp;
+ q = serv.s_aliases = serv_aliases;
+ cp = strpbrk(cp, " \t");
+ if (cp != NULL)
+ *cp++ = '\0';
+ while (cp && *cp) {
+ if (*cp == ' ' || *cp == '\t') {
+ cp++;
+ continue;
+ }
+ if (q < &serv_aliases[MAXALIASES - 1])
+ *q++ = cp;
+ cp = strpbrk(cp, " \t");
+ if (cp != NULL)
+ *cp++ = '\0';
+ }
+ *q = NULL;
+ return (&serv);
+}
projects / tcpdump / commitdiff
