musl: Add getent

core/musl/build

@@ -17,3 +17,4 @@ install -Dm 755 tree.h  "$1/usr/include/sys/tree.h"
 
 # Install getconf.
 cc getconf.c -o "$1/usr/bin/getconf"
+cc getent.c  -o "$1/usr/bin/getent"

core/musl/checksums

@@ -3,3 +3,4 @@ c6de7b191139142d3f9a7b5b702c9cae1b5ee6e7f57e582da9328629408fd4e8  musl-1.2.0.tar
 c13407edd0e33be73cae72514cb234f8612e1c0e54401c9448daffd3a240158b  queue.h
 e1e498a79bf160a5766fa560f2b07b206fe89fe21a62600c77d72e00a6992f92  tree.h
 d87d0cbb3690ae2c5d8cc218349fd8278b93855dd625deaf7ae50e320aad247c  getconf.c
+b323f20c9bf560a13c877eb05428bc4a203383697bac763e7b12865db5c5922c  getent.c

core/musl/files/getent.c

@@ -0,0 +1,511 @@
+/*-
+ * Copyright (c) 2004-2006 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Luke Mewburn.
+ * Timo Teräs cleaned up the code for use in Alpine Linux with musl libc.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/socket.h>
+#include <sys/param.h>
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <netdb.h>
+#include <pwd.h>
+#include <grp.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <paths.h>
+#include <err.h>
+
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <netinet/ether.h>
+#include <netinet/in.h>
+
+enum {
+	RV_OK		= 0,
+	RV_USAGE	= 1,
+	RV_NOTFOUND	= 2,
+	RV_NOENUM	= 3
+};
+
+static int usage(const char *);
+
+static int parsenum(const char *word, unsigned long *result)
+{
+	unsigned long	num;
+	char		*ep;
+
+	if (!isdigit((unsigned char)word[0]))
+		return 0;
+	errno = 0;
+	num = strtoul(word, &ep, 10);
+	if (num == ULONG_MAX && errno == ERANGE)
+		return 0;
+	if (*ep != '\0')
+		return 0;
+	*result = num;
+	return 1;
+}
+
+/*
+ * printfmtstrings --
+ *	vprintf(format, ...),
+ *	then the aliases (beginning with prefix, separated by sep),
+ *	then a newline
+ */
+__attribute__ ((format (printf, 4, 5)))
+static void printfmtstrings(char *strings[], const char *prefix, const char *sep,
+	const char *fmt, ...)
+{
+	va_list		ap;
+	const char	*curpref;
+	size_t		i;
+
+	va_start(ap, fmt);
+	(void)vprintf(fmt, ap);
+	va_end(ap);
+
+	curpref = prefix;
+	for (i = 0; strings[i] != NULL; i++) {
+		(void)printf("%s%s", curpref, strings[i]);
+		curpref = sep;
+	}
+	(void)printf("\n");
+}
+
+static int ethers(int argc, char *argv[])
+{
+	char		hostname[MAXHOSTNAMELEN + 1], *hp;
+	struct ether_addr ea, *eap;
+	int		i, rv;
+
+	if (argc == 2) {
+		warnx("Enumeration not supported on ethers");
+		return RV_NOENUM;
+	}
+
+	rv = RV_OK;
+	for (i = 2; i < argc; i++) {
+		if ((eap = ether_aton(argv[i])) == NULL) {
+			eap = &ea;
+			hp = argv[i];
+			if (ether_hostton(hp, eap) != 0) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+		} else {
+			hp = hostname;
+			if (ether_ntohost(hp, eap) != 0) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+		}
+		(void)printf("%-17s  %s\n", ether_ntoa(eap), hp);
+	}
+	return rv;
+}
+
+static void groupprint(const struct group *gr)
+{
+	printfmtstrings(gr->gr_mem, ":", ",", "%s:%s:%u",
+			gr->gr_name, gr->gr_passwd, gr->gr_gid);
+}
+
+static int group(int argc, char *argv[])
+{
+	struct group	*gr;
+	unsigned long	id;
+	int		i, rv;
+
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((gr = getgrent()) != NULL)
+			groupprint(gr);
+	} else {
+		for (i = 2; i < argc; i++) {
+			if (parsenum(argv[i], &id))
+				gr = getgrgid((gid_t)id);
+			else
+				gr = getgrnam(argv[i]);
+			if (gr == NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+			groupprint(gr);
+		}
+	}
+	endgrent();
+	return rv;
+}
+
+static void hostsprint(const struct hostent *he)
+{
+	char	buf[INET6_ADDRSTRLEN];
+
+	if (inet_ntop(he->h_addrtype, he->h_addr, buf, sizeof(buf)) == NULL)
+		(void)strlcpy(buf, "# unknown", sizeof(buf));
+	printfmtstrings(he->h_aliases, "  ", " ", "%-16s  %s", buf, he->h_name);
+}
+
+static int hosts(int argc, char *argv[])
+{
+	struct hostent	*he;
+	char		addr[IN6ADDRSZ];
+	int		i, rv;
+
+	sethostent(1);
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((he = gethostent()) != NULL)
+			hostsprint(he);
+	} else {
+		for (i = 2; i < argc; i++) {
+			if (inet_pton(AF_INET6, argv[i], (void *)addr) > 0)
+				he = gethostbyaddr(addr, IN6ADDRSZ, AF_INET6);
+			else if (inet_pton(AF_INET, argv[i], (void *)addr) > 0)
+				he = gethostbyaddr(addr, INADDRSZ, AF_INET);
+			else if ((he = gethostbyname2(argv[i], AF_INET6)) == NULL)
+				he = gethostbyname2(argv[i], AF_INET);
+			if (he == NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+			hostsprint(he);
+		}
+	}
+	endhostent();
+	return rv;
+}
+
+static int ahosts_ex(int family, int flags, int argc, char *argv[])
+{
+	static const char *socktypes[] = {
+		[SOCK_STREAM]		= "STREAM",
+		[SOCK_DGRAM]		= "DGRAM",
+		[SOCK_RAW]		= "RAW",
+		[SOCK_RDM]		= "RDM",
+		[SOCK_SEQPACKET]	= "SEQPACKET",
+		[SOCK_DCCP]		= "DCCP",
+		[SOCK_PACKET]		= "PACKET",
+	};
+	const char *sockstr;
+	char sockbuf[16], buf[INET6_ADDRSTRLEN];
+	struct addrinfo *res, *r, hint;
+	void *addr;
+	int i;
+
+	if (argc == 2)
+		return hosts(argc, argv);
+
+	hint = (struct addrinfo) {
+		.ai_family = family,
+		.ai_flags = AI_ADDRCONFIG | AI_CANONNAME | flags,
+	};
+
+	for (i = 2; i < argc; i++) {
+		if (getaddrinfo(argv[i], 0, &hint, &res) != 0)
+			return RV_NOTFOUND;
+
+		for (r = res; r; r = r->ai_next) {
+			sockstr = NULL;
+			if (r->ai_socktype >= 0 && r->ai_socktype < sizeof(socktypes)/sizeof(socktypes[0]))
+				sockstr = socktypes[r->ai_socktype];
+			if (!sockstr) {
+				sprintf(buf, "%d", r->ai_socktype);
+				sockstr = sockbuf;
+			}
+			switch (r->ai_family) {
+			case AF_INET:
+				addr = &((struct sockaddr_in*) r->ai_addr)->sin_addr;
+				break;
+			case AF_INET6:
+				addr = &((struct sockaddr_in6*) r->ai_addr)->sin6_addr;
+				break;
+			default:
+				continue;
+			}
+			if (inet_ntop(r->ai_family, addr, buf, sizeof(buf)) == NULL)
+				(void)strlcpy(buf, "# unknown", sizeof(buf));
+			printf("%-15s %-6s %s\n", buf, sockstr, r->ai_canonname ?: "");
+		}
+	}
+
+	return RV_OK;
+}
+
+static int ahosts(int argc, char *argv[])
+{
+	return ahosts_ex(AF_UNSPEC, 0, argc, argv);
+}
+
+static int ahostsv4(int argc, char *argv[])
+{
+	return ahosts_ex(AF_INET, 0, argc, argv);
+}
+
+static int ahostsv6(int argc, char *argv[])
+{
+	return ahosts_ex(AF_INET6, AI_V4MAPPED, argc, argv);
+}
+
+static void networksprint(const struct netent *ne)
+{
+	char		buf[INET6_ADDRSTRLEN];
+	struct	in_addr	ianet;
+
+	ianet = inet_makeaddr(ne->n_net, 0);
+	if (inet_ntop(ne->n_addrtype, &ianet, buf, sizeof(buf)) == NULL)
+		(void)strlcpy(buf, "# unknown", sizeof(buf));
+	printfmtstrings(ne->n_aliases, "  ", " ", "%-16s  %s", ne->n_name, buf);
+}
+
+static int networks(int argc, char *argv[])
+{
+	struct netent	*ne;
+	in_addr_t	net;
+	int		i, rv;
+
+	setnetent(1);
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((ne = getnetent()) != NULL)
+			networksprint(ne);
+	} else {
+		for (i = 2; i < argc; i++) {
+			net = inet_network(argv[i]);
+			if (net != INADDR_NONE)
+				ne = getnetbyaddr(net, AF_INET);
+			else
+				ne = getnetbyname(argv[i]);
+			if (ne != NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+			networksprint(ne);
+		}
+	}
+	endnetent();
+	return rv;
+}
+
+static void passwdprint(struct passwd *pw)
+{
+	(void)printf("%s:%s:%u:%u:%s:%s:%s\n",
+		pw->pw_name, pw->pw_passwd, pw->pw_uid,
+		pw->pw_gid, pw->pw_gecos, pw->pw_dir, pw->pw_shell);
+}
+
+static int passwd(int argc, char *argv[])
+{
+	struct passwd	*pw;
+	unsigned long	id;
+	int		i, rv;
+
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((pw = getpwent()) != NULL)
+			passwdprint(pw);
+	} else {
+		for (i = 2; i < argc; i++) {
+			if (parsenum(argv[i], &id))
+				pw = getpwuid((uid_t)id);
+			else
+				pw = getpwnam(argv[i]);
+			if (pw == NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+			passwdprint(pw);
+		}
+	}
+	endpwent();
+	return rv;
+}
+
+static void protocolsprint(struct protoent *pe)
+{
+	printfmtstrings(pe->p_aliases, "  ", " ",
+			"%-16s  %5d", pe->p_name, pe->p_proto);
+}
+
+static int protocols(int argc, char *argv[])
+{
+	struct protoent	*pe;
+	unsigned long	id;
+	int		i, rv;
+
+	setprotoent(1);
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((pe = getprotoent()) != NULL)
+			protocolsprint(pe);
+	} else {
+		for (i = 2; i < argc; i++) {
+			if (parsenum(argv[i], &id))
+				pe = getprotobynumber((int)id);
+			else
+				pe = getprotobyname(argv[i]);
+			if (pe == NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+			protocolsprint(pe);
+		}
+	}
+	endprotoent();
+	return rv;
+}
+
+static void servicesprint(struct servent *se)
+{
+	printfmtstrings(se->s_aliases, "  ", " ",
+			"%-16s  %5d/%s",
+			se->s_name, ntohs(se->s_port), se->s_proto);
+
+}
+
+static int services(int argc, char *argv[])
+{
+	struct servent	*se;
+	unsigned long	id;
+	char		*proto;
+	int		i, rv;
+
+	setservent(1);
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((se = getservent()) != NULL)
+			servicesprint(se);
+	} else {
+		for (i = 2; i < argc; i++) {
+			proto = strchr(argv[i], '/');
+			if (proto != NULL)
+				*proto++ = '\0';
+			if (parsenum(argv[i], &id))
+				se = getservbyport(htons(id), proto);
+			else
+				se = getservbyname(argv[i], proto);
+			if (se == NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+			servicesprint(se);
+		}
+	}
+	endservent();
+	return rv;
+}
+
+static int shells(int argc, char *argv[])
+{
+	const char	*sh;
+	int		i, rv;
+
+	setusershell();
+	rv = RV_OK;
+	if (argc == 2) {
+		while ((sh = getusershell()) != NULL)
+			(void)printf("%s\n", sh);
+	} else {
+		for (i = 2; i < argc; i++) {
+			setusershell();
+			while ((sh = getusershell()) != NULL) {
+				if (strcmp(sh, argv[i]) == 0) {
+					(void)printf("%s\n", sh);
+					break;
+				}
+			}
+			if (sh == NULL) {
+				rv = RV_NOTFOUND;
+				break;
+			}
+		}
+	}
+	endusershell();
+	return rv;
+}
+
+static struct getentdb {
+	const char	*name;
+	int		(*callback)(int, char *[]);
+} databases[] = {
+	{	"ethers",	ethers,		},
+	{	"group",	group,		},
+	{	"hosts",	hosts,		},
+	{	"ahosts",	ahosts,		},
+	{	"ahostsv4",	ahostsv4,	},
+	{	"ahostsv6",	ahostsv6,	},
+	{	"networks",	networks,	},
+	{	"passwd",	passwd,		},
+	{	"protocols",	protocols,	},
+	{	"services",	services,	},
+	{	"shells",	shells,		},
+
+	{	NULL,		NULL,		},
+};
+
+static int usage(const char *arg0)
+{
+	struct getentdb	*curdb;
+	size_t i;
+
+	(void)fprintf(stderr, "Usage: %s database [key ...]\n", arg0);
+	(void)fprintf(stderr, "\tdatabase may be one of:");
+	for (i = 0, curdb = databases; curdb->name != NULL; curdb++, i++) {
+		if (i % 7 == 0)
+			(void)fputs("\n\t\t", stderr);
+		(void)fprintf(stderr, "%s%s", i % 7 == 0 ? "" : " ",
+		    curdb->name);
+	}
+	(void)fprintf(stderr, "\n");
+	exit(RV_USAGE);
+	/* NOTREACHED */
+}
+
+int
+main(int argc, char *argv[])
+{
+	struct getentdb	*curdb;
+
+	if (argc < 2)
+		usage(argv[0]);
+	for (curdb = databases; curdb->name != NULL; curdb++)
+		if (strcmp(curdb->name, argv[1]) == 0)
+			return (*curdb->callback)(argc, argv);
+
+	warn("Unknown database `%s'", argv[1]);
+	usage(argv[0]);
+	/* NOTREACHED */
+}

core/musl/sources

@@ -3,3 +3,4 @@ files/cdefs.h
 files/queue.h
 files/tree.h
 files/getconf.c
+files/getent.c

core/musl/version

@@ -1 +1 @@
-1.2.0 1
+1.2.0 2