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-rw-r--r--config/nsinstall.c411
1 files changed, 411 insertions, 0 deletions
diff --git a/config/nsinstall.c b/config/nsinstall.c
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index 0000000000..363ae3eefd
--- /dev/null
+++ b/config/nsinstall.c
@@ -0,0 +1,411 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/*
+** Netscape portable install command.
+**
+** Brendan Eich, 7/20/95
+*/
+#include <stdio.h> /* OSF/1 requires this before grp.h, so put it first */
+#include <assert.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <limits.h>
+#include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <utime.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "pathsub.h"
+
+#ifdef HAVE_GETOPT_H
+# include <getopt.h>
+#endif
+
+#ifdef SUNOS4
+# include "sunos4.h"
+#endif
+
+#ifdef NEXTSTEP
+# include <bsd/libc.h>
+#endif
+
+#ifdef __QNX__
+# include <unix.h>
+#endif
+
+#ifdef NEED_S_ISLNK
+# if !defined(S_ISLNK) && defined(S_IFLNK)
+# define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK)
+# endif
+#endif
+
+#ifndef _DIRECTORY_SEPARATOR
+# define _DIRECTORY_SEPARATOR "/"
+#endif /* _DIRECTORY_SEPARATOR */
+
+#ifdef NEED_FCHMOD_PROTO
+extern int fchmod(int fildes, mode_t mode);
+#endif
+
+static void usage(void) {
+ fprintf(stderr,
+ "usage: %s [-C cwd] [-L linkprefix] [-m mode] [-o owner] [-g group]\n"
+ " %*s [-DdltR] file [file ...] directory\n",
+ program, (int)strlen(program), "");
+ exit(2);
+}
+
+static int mkdirs(char* path, mode_t mode) {
+ char* cp;
+ struct stat sb;
+ int res;
+ int l;
+
+ /* strip trailing "/." */
+ l = strlen(path);
+ if (l > 1 && path[l - 1] == '.' && path[l - 2] == '/') path[l - 2] = 0;
+
+ while (*path == '/' && path[1] == '/') path++;
+ for (cp = strrchr(path, '/'); cp && cp != path && *(cp - 1) == '/'; cp--)
+ ;
+ if (cp && cp != path) {
+ *cp = '\0';
+ if ((lstat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
+ mkdirs(path, mode) < 0) {
+ return -1;
+ }
+ *cp = '/';
+ }
+
+ res = mkdir(path, mode);
+ if ((res != 0) && (errno == EEXIST))
+ return 0;
+ else
+ return res;
+}
+
+static uid_t touid(char* owner) {
+ struct passwd* pw;
+ uid_t uid;
+ char* cp;
+
+ pw = getpwnam(owner);
+ if (pw) return pw->pw_uid;
+ uid = strtol(owner, &cp, 0);
+ if (uid == 0 && cp == owner) fail("cannot find uid for %s", owner);
+ return uid;
+}
+
+static gid_t togid(char* group) {
+ struct group* gr;
+ gid_t gid;
+ char* cp;
+
+ gr = getgrnam(group);
+ if (gr) return gr->gr_gid;
+ gid = strtol(group, &cp, 0);
+ if (gid == 0 && cp == group) fail("cannot find gid for %s", group);
+ return gid;
+}
+
+static void copyfile(char* name, char* toname, mode_t mode, char* group,
+ char* owner, int dotimes, uid_t uid, gid_t gid) {
+ int fromfd, tofd = -1, cc, wc, exists;
+ char buf[BUFSIZ], *bp;
+ struct stat sb, tosb;
+ struct utimbuf utb;
+
+ exists = (lstat(toname, &tosb) == 0);
+
+ fromfd = open(name, O_RDONLY);
+ if (fromfd < 0 || fstat(fromfd, &sb) < 0) fail("cannot access %s", name);
+ if (exists) {
+ if (S_ISREG(tosb.st_mode)) {
+ /* See if we can open it. This is more reliable than 'access'. */
+ tofd = open(toname, O_CREAT | O_WRONLY, 0666);
+ }
+ if (tofd < 0) {
+ (void)(S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
+ }
+ }
+ if (tofd < 0) {
+ tofd = open(toname, O_CREAT | O_WRONLY, 0666);
+ if (tofd < 0) fail("cannot create %s", toname);
+ }
+
+ bp = buf;
+ while ((cc = read(fromfd, bp, sizeof buf)) > 0) {
+ while ((wc = write(tofd, bp, (unsigned int)cc)) > 0) {
+ if ((cc -= wc) == 0) break;
+ bp += wc;
+ }
+ if (wc < 0) fail("cannot write to %s", toname);
+ }
+ if (cc < 0) fail("cannot read from %s", name);
+
+ if (ftruncate(tofd, sb.st_size) < 0) fail("cannot truncate %s", toname);
+#if !defined(VMS)
+ if (dotimes) {
+ utb.actime = sb.st_atime;
+ utb.modtime = sb.st_mtime;
+ if (utime(toname, &utb) < 0) fail("cannot set times of %s", toname);
+ }
+# ifdef HAVE_FCHMOD
+ if (fchmod(tofd, mode) < 0)
+# else
+ if (chmod(toname, mode) < 0)
+# endif
+ fail("cannot change mode of %s", toname);
+#endif
+ if ((owner || group) && fchown(tofd, uid, gid) < 0)
+ fail("cannot change owner of %s", toname);
+
+ /* Must check for delayed (NFS) write errors on close. */
+ if (close(tofd) < 0) fail("cannot write to %s", toname);
+ close(fromfd);
+#if defined(VMS)
+ if (chmod(toname, (mode & (S_IREAD | S_IWRITE))) < 0)
+ fail("cannot change mode of %s", toname);
+ if (dotimes) {
+ utb.actime = sb.st_atime;
+ utb.modtime = sb.st_mtime;
+ if (utime(toname, &utb) < 0) fail("cannot set times of %s", toname);
+ }
+#endif
+}
+
+static void copydir(char* from, char* to, mode_t mode, char* group, char* owner,
+ int dotimes, uid_t uid, gid_t gid) {
+ DIR* dir;
+ struct dirent* ep;
+ struct stat sb;
+ char *base, *destdir, *direntry, *destentry;
+
+ base = xbasename(from);
+
+ /* create destination directory */
+ destdir = xmalloc((unsigned int)(strlen(to) + 1 + strlen(base) + 1));
+ sprintf(destdir, "%s%s%s", to, _DIRECTORY_SEPARATOR, base);
+ if (mkdirs(destdir, mode) != 0) {
+ fail("cannot make directory %s\n", destdir);
+ free(destdir);
+ return;
+ }
+
+ if (!(dir = opendir(from))) {
+ fail("cannot open directory %s\n", from);
+ free(destdir);
+ return;
+ }
+
+ direntry = xmalloc((unsigned int)PATH_MAX);
+ destentry = xmalloc((unsigned int)PATH_MAX);
+
+ while ((ep = readdir(dir))) {
+ if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0) continue;
+
+ sprintf(direntry, "%s/%s", from, ep->d_name);
+ sprintf(destentry, "%s%s%s", destdir, _DIRECTORY_SEPARATOR, ep->d_name);
+
+ if (stat(direntry, &sb) == 0 && S_ISDIR(sb.st_mode))
+ copydir(direntry, destdir, mode, group, owner, dotimes, uid, gid);
+ else
+ copyfile(direntry, destentry, mode, group, owner, dotimes, uid, gid);
+ }
+
+ free(destdir);
+ free(direntry);
+ free(destentry);
+ closedir(dir);
+}
+
+int main(int argc, char** argv) {
+ int onlydir, dodir, dolink, dorelsymlink, dotimes, opt, len, lplen, tdlen,
+ bnlen, exists;
+ mode_t mode = 0755;
+ char *linkprefix, *owner, *group, *cp, *cwd, *todir, *toname, *name, *base,
+ *linkname, buf[BUFSIZ];
+ uid_t uid;
+ gid_t gid;
+ struct stat sb, tosb, fromsb;
+
+ program = argv[0];
+ cwd = linkname = linkprefix = owner = group = 0;
+ onlydir = dodir = dolink = dorelsymlink = dotimes = lplen = 0;
+
+ while ((opt = getopt(argc, argv, "C:DdlL:Rm:o:g:t")) != EOF) {
+ switch (opt) {
+ case 'C':
+ cwd = optarg;
+ break;
+ case 'D':
+ onlydir = 1;
+ break;
+ case 'd':
+ dodir = 1;
+ break;
+ case 'L':
+ linkprefix = optarg;
+ lplen = strlen(linkprefix);
+ dolink = 1;
+ break;
+ case 'R':
+ dolink = dorelsymlink = 1;
+ break;
+ case 'm':
+ mode = strtoul(optarg, &cp, 8);
+ if (mode == 0 && cp == optarg) usage();
+ break;
+ case 'o':
+ owner = optarg;
+ break;
+ case 'g':
+ group = optarg;
+ break;
+ case 't':
+ dotimes = 1;
+ break;
+ default:
+ usage();
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+ if (argc < 2 - onlydir) usage();
+
+ todir = argv[argc - 1];
+ if ((stat(todir, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
+ mkdirs(todir, 0777) < 0) {
+ fail("cannot make directory %s", todir);
+ }
+ if (onlydir) return 0;
+
+ if (!cwd) {
+#ifndef NEEDS_GETCWD
+# ifndef GETCWD_CANT_MALLOC
+ cwd = getcwd(0, PATH_MAX);
+# else
+ cwd = malloc(PATH_MAX + 1);
+ cwd = getcwd(cwd, PATH_MAX);
+# endif
+#else
+ cwd = malloc(PATH_MAX + 1);
+ cwd = getwd(cwd);
+#endif
+ }
+
+ xchdir(todir);
+#ifndef NEEDS_GETCWD
+# ifndef GETCWD_CANT_MALLOC
+ todir = getcwd(0, PATH_MAX);
+# else
+ todir = malloc(PATH_MAX + 1);
+ todir = getcwd(todir, PATH_MAX);
+# endif
+#else
+ todir = malloc(PATH_MAX + 1);
+ todir = getwd(todir);
+#endif
+ tdlen = strlen(todir);
+ xchdir(cwd);
+ tdlen = strlen(todir);
+
+ uid = owner ? touid(owner) : (uid_t)(-1);
+ gid = group ? togid(group) : (gid_t)(-1);
+
+ while (--argc > 0) {
+ name = *argv++;
+ len = strlen(name);
+ base = xbasename(name);
+ bnlen = strlen(base);
+ toname = xmalloc((unsigned int)(tdlen + 1 + bnlen + 1));
+ sprintf(toname, "%s%s%s", todir, _DIRECTORY_SEPARATOR, base);
+ exists = (lstat(toname, &tosb) == 0);
+
+ if (dodir) {
+ /* -d means create a directory, always */
+ if (exists && !S_ISDIR(tosb.st_mode)) {
+ (void)unlink(toname);
+ exists = 0;
+ }
+ if (!exists && mkdir(toname, mode) < 0)
+ fail("cannot make directory %s", toname);
+ if ((owner || group) && chown(toname, uid, gid) < 0)
+ fail("cannot change owner of %s", toname);
+ } else if (dolink) {
+ if (access(name, R_OK) != 0) {
+ fail("cannot access %s", name);
+ }
+ if (*name == '/') {
+ /* source is absolute pathname, link to it directly */
+ linkname = 0;
+ } else {
+ if (linkprefix) {
+ /* -L prefixes names with a $cwd arg. */
+ len += lplen + 1;
+ linkname = xmalloc((unsigned int)(len + 1));
+ sprintf(linkname, "%s/%s", linkprefix, name);
+ } else if (dorelsymlink) {
+ /* Symlink the relative path from todir to source name. */
+ linkname = xmalloc(PATH_MAX);
+
+ if (*todir == '/') {
+ /* todir is absolute: skip over common prefix. */
+ lplen = relatepaths(todir, cwd, linkname);
+ strcpy(linkname + lplen, name);
+ } else {
+ /* todir is named by a relative path: reverse it. */
+ reversepath(todir, name, len, linkname);
+ xchdir(cwd);
+ }
+
+ len = strlen(linkname);
+ }
+ name = linkname;
+ }
+
+ /* Check for a pre-existing symlink with identical content. */
+ if (exists &&
+ (!S_ISLNK(tosb.st_mode) || readlink(toname, buf, sizeof buf) != len ||
+ strncmp(buf, name, (unsigned int)len) != 0 ||
+ ((stat(name, &fromsb) == 0) && (fromsb.st_mtime > tosb.st_mtime)))) {
+ (void)(S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
+ exists = 0;
+ }
+ if (!exists && symlink(name, toname) < 0)
+ fail("cannot make symbolic link %s", toname);
+#ifdef HAVE_LCHOWN
+ if ((owner || group) && lchown(toname, uid, gid) < 0)
+ fail("cannot change owner of %s", toname);
+#endif
+
+ if (linkname) {
+ free(linkname);
+ linkname = 0;
+ }
+ } else {
+ /* Copy from name to toname, which might be the same file. */
+ if (stat(name, &sb) == 0 && S_IFDIR & sb.st_mode) {
+ /* then is directory: must explicitly create destination dir */
+ /* and manually copy files over */
+ copydir(name, todir, mode, group, owner, dotimes, uid, gid);
+ } else {
+ copyfile(name, toname, mode, group, owner, dotimes, uid, gid);
+ }
+ }
+
+ free(toname);
+ }
+
+ free(cwd);
+ free(todir);
+ return 0;
+}