diff options
author | ltabb <devnull@localhost> | 1998-03-28 02:44:19 +0000 |
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committer | ltabb <devnull@localhost> | 1998-03-28 02:44:19 +0000 |
commit | f37da7c8c6b5efa19577e626dc75420498c35077 (patch) | |
tree | 0bf3e03b605ef5c66d9e56e70c0d9276587a1115 /config/nsinstall.c | |
download | nspr-hg-f37da7c8c6b5efa19577e626dc75420498c35077.tar.gz |
Free the lizard
Diffstat (limited to 'config/nsinstall.c')
-rw-r--r-- | config/nsinstall.c | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/config/nsinstall.c b/config/nsinstall.c new file mode 100644 index 00000000..889eb1e1 --- /dev/null +++ b/config/nsinstall.c @@ -0,0 +1,317 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* + * The contents of this file are subject to the Netscape Public License + * Version 1.0 (the "NPL"); you may not use this file except in + * compliance with the NPL. You may obtain a copy of the NPL at + * http://www.mozilla.org/NPL/ + * + * Software distributed under the NPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL + * for the specific language governing rights and limitations under the + * NPL. + * + * The Initial Developer of this code under the NPL is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1998 Netscape Communications Corporation. All Rights + * Reserved. + */ + +/* +** 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 <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" + +#define HAVE_LCHOWN + +#if defined(AIX) || defined(BSDI) || defined(HPUX) || defined(LINUX) || defined(SUNOS4) || defined(SCO) || defined(UNIXWARE) +#undef HAVE_LCHOWN +#endif + +#ifdef LINUX +#include <getopt.h> +#endif + +#if defined(SCO) || defined(UNIXWARE) || defined(SNI) || defined(NCR) || defined(NEC) +#if !defined(S_ISLNK) && defined(S_IFLNK) +#define S_ISLNK(a) (((a) & S_IFMT) == S_IFLNK) +#endif +#endif + +#if defined(SNI) +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, strlen(program), ""); + exit(2); +} + +static int +mkdirs(char *path, mode_t mode) +{ + char *cp; + struct stat sb; + + while (*path == '/' && path[1] == '/') + path++; + while ((cp = strrchr(path, '/')) && cp[1] == '\0') + *cp = '\0'; + if (cp && cp != path) { + *cp = '\0'; + if ((lstat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) && + mkdirs(path, mode) < 0) { + return -1; + } + *cp = '/'; + } + return mkdir(path, mode); +} + +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; +} + +int +main(int argc, char **argv) +{ + int onlydir, dodir, dolink, dorelsymlink, dotimes, opt, len, lplen, tdlen, bnlen, exists, fromfd, tofd, cc, wc; + mode_t mode = 0755; + char *linkprefix, *owner, *group, *cp, *cwd, *todir, *toname, *name, *base, *linkname, *bp, buf[BUFSIZ]; + uid_t uid; + gid_t gid; + struct stat sb, tosb; + struct utimbuf utb; + + 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': + dolink = 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) + cwd = getcwd(0, PATH_MAX); + xchdir(todir); + todir = getcwd(0, PATH_MAX); + tdlen = strlen(todir); + xchdir(cwd); + tdlen = strlen(todir); + + uid = owner ? touid(owner) : -1; + gid = group ? togid(group) : -1; + + while (--argc > 0) { + name = *argv++; + len = strlen(name); + base = xbasename(name); + bnlen = strlen(base); + toname = (char*)xmalloc(tdlen + 1 + bnlen + 1); + sprintf(toname, "%s/%s", todir, 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 (*name == '/') { + /* source is absolute pathname, link to it directly */ + linkname = 0; + } else { + if (linkprefix) { + /* -L implies -l and prefixes names with a $cwd arg. */ + len += lplen + 1; + linkname = (char*)xmalloc(len + 1); + sprintf(linkname, "%s/%s", linkprefix, name); + } else if (dorelsymlink) { + /* Symlink the relative path from todir to source name. */ + linkname = (char*)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, len) != 0)) { + (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. */ + fromfd = open(name, O_RDONLY); + if (fromfd < 0 || fstat(fromfd, &sb) < 0) + fail("cannot access %s", name); + if (exists && (!S_ISREG(tosb.st_mode) || access(toname, W_OK) < 0)) + (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname); + 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, 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 (dotimes) { + utb.actime = sb.st_atime; + utb.modtime = sb.st_mtime; + if (utime(toname, &utb) < 0) + fail("cannot set times of %s", toname); + } + if (fchmod(tofd, mode) < 0) + fail("cannot change mode of %s", toname); + 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); + } + + free(toname); + } + + free(cwd); + free(todir); + return 0; +} |