/* * Copyright (c) 1987, 1993 * The Regents of the University of California. 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. */ #if 0 /*ndef lint*/ static const char copyright[] = "@(#) Copyright (c) 1987, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #if 0 #ifndef lint static char sccsid[] = "@(#)xinstall.c 8.1 (Berkeley) 7/21/93"; #endif /* not lint */ #include __FBSDID("$FreeBSD: src/usr.bin/xinstall/xinstall.c,v 1.66 2005/01/25 14:34:57 ssouhlal Exp $"); #endif #define FAKES_NO_GETOPT_H #include "config.h" #ifndef _MSC_VER # include # if !defined(__HAIKU__) && !defined(__gnu_hurd__) # include # endif # include # include #endif /* !_MSC_VER */ #include #include #include "err.h" #include #include #include #include #include #include #include #include #ifndef __HAIKU__ # include #endif #ifdef __NetBSD__ # include # define strtofflags(a, b, c) string_to_flags(a, b, c) #endif #include #if defined(__EMX__) || defined(_MSC_VER) # include #endif #include "getopt_r.h" #ifdef __sun__ # include "solfakes.h" #endif #ifdef _MSC_VER # include "mscfakes.h" #endif #ifdef __HAIKU__ # include "haikufakes.h" #endif #include "kmkbuiltin.h" #include "k/kDefs.h" /* for K_OS */ #include "dos2unix.h" extern void * bsd_setmode(const char *p); extern mode_t bsd_getmode(const void *bbox, mode_t omode); #ifndef MAXBSIZE # define MAXBSIZE 0x20000 #endif #define MAX_CMP_SIZE (16 * 1024 * 1024) #define DIRECTORY 0x01 /* Tell install it's a directory. */ #define SETFLAGS 0x02 /* Tell install to set flags. */ #define NOCHANGEBITS (UF_IMMUTABLE | UF_APPEND | SF_IMMUTABLE | SF_APPEND) #define BACKUP_SUFFIX ".old" #ifndef O_BINARY # define O_BINARY 0 #endif #ifndef EFTYPE # define EFTYPE EINVAL #endif #if defined(__WIN32__) || defined(__WIN64__) || defined(__OS2__) # define IS_SLASH(ch) ((ch) == '/' || (ch) == '\\') #else # define IS_SLASH(ch) ((ch) == '/') #endif /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ typedef struct INSTALLINSTANCE { PKMKBUILTINCTX pCtx; gid_t gid; uid_t uid; int dobackup, docompare, dodir, dopreserve, dostrip, nommap, safecopy, verbose, mode_given; mode_t mode; const char *suffix; int ignore_perm_errors; int hard_link_files_when_possible; int verbose_hard_link_refusal; int verbose_hard_link_mode_mismatch; int dos2unix; } INSTALLINSTANCE; typedef INSTALLINSTANCE *PINSTALLINSTANCE; enum { kInstOpt_Help = 261, kInstOpt_Version, kInstOpt_Verbose, kInstOpt_Quiet, kInstOpt_IgnorePermErrors, kInstOpt_NoIgnorePermErrors, kInstOpt_HardLinkFilesWhenPossible, kInstOpt_NoHardLinkFilesWhenPossible, kInstOpt_Dos2Unix, kInstOpt_Unix2Dos, kInstOpt_VerboseHardLinkRefusal, kInstOpt_QuietHardLinkRefusal, kInstOpt_VerboseHardLinkModeMismatch, kInstOpt_QuietHardLinkModeMismatch }; /********************************************************************************************************************************* * Global Variables * *********************************************************************************************************************************/ static struct option long_options[] = { { "help", no_argument, 0, kInstOpt_Help }, { "version", no_argument, 0, kInstOpt_Version }, { "quiet", no_argument, 0, kInstOpt_Quiet }, { "ignore-perm-errors", no_argument, 0, kInstOpt_IgnorePermErrors }, { "no-ignore-perm-errors", no_argument, 0, kInstOpt_NoIgnorePermErrors }, { "hard-link-files-when-possible", no_argument, 0, kInstOpt_HardLinkFilesWhenPossible }, { "no-hard-link-files-when-possible", no_argument, 0, kInstOpt_NoHardLinkFilesWhenPossible }, { "verbose-hard-link-refusal", no_argument, 0, kInstOpt_VerboseHardLinkRefusal }, { "quiet-hard-link-refusal", no_argument, 0, kInstOpt_QuietHardLinkRefusal }, { "verbose-hard-link-mode-mismatch", no_argument, 0, kInstOpt_VerboseHardLinkModeMismatch }, { "quiet-hard-link-mode-mismatch", no_argument, 0, kInstOpt_QuietHardLinkModeMismatch }, { "dos2unix", no_argument, 0, kInstOpt_Dos2Unix }, { "unix2dos", no_argument, 0, kInstOpt_Unix2Dos }, #if 1 /* GNU coreutils compatibility: */ { "compare", no_argument, 0, 'C' }, { "directory", no_argument, 0, 'd' }, { "group", required_argument, 0, 'g' }, { "mode", required_argument, 0, 'm' }, { "owner", required_argument, 0, 'o' }, { "strip", no_argument, 0, 's' }, { "suffix", required_argument, 0, 'S' }, { "verbose", no_argument, 0, 'v' }, #endif { 0, 0, 0, 0 }, }; static int copy(PINSTALLINSTANCE, int, const char *, int *, const char *); static int compare(int, size_t, int, size_t); static int create_newfile(PINSTALLINSTANCE, const char *, int, struct stat *); static int create_tempfile(const char *, char *, size_t); static int install(PINSTALLINSTANCE, const char *, const char *, u_long, u_int); static int install_dir(PINSTALLINSTANCE, char *); static u_long numeric_id(PINSTALLINSTANCE, const char *, const char *); static int strip(PINSTALLINSTANCE, const char *); static int usage(PKMKBUILTINCTX, int); static char *last_slash(const char *); static KBOOL needs_dos2unix_conversion(const char *pszFilename); static KBOOL needs_unix2dos_conversion(const char *pszFilename); int kmk_builtin_install(int argc, char *argv[], char ** envp, PKMKBUILTINCTX pCtx) { INSTALLINSTANCE This; struct getopt_state_r gos; struct stat from_sb, to_sb; mode_t *set; u_long fset = 0; int ch, no_target; u_int iflags; char *flags; const char *group, *owner, *to_name; (void)envp; /* Initialize global instance data. */ This.pCtx = pCtx; This.mode = S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH; This.suffix = BACKUP_SUFFIX; This.gid = 0; This.uid = 0; This.dobackup = 0; This.docompare = 0; This.dodir = 0; This.dopreserve = 0; This.dostrip = 0; This.nommap = 0; This.safecopy = 0; This.verbose = 0; This.mode_given = 0; This.ignore_perm_errors = geteuid() != 0; This.hard_link_files_when_possible = 0; This.verbose_hard_link_refusal = 0; This.verbose_hard_link_mode_mismatch = 0; This.dos2unix = 0; iflags = 0; group = owner = NULL; getopt_initialize_r(&gos, argc, argv, "B:bCcdf:g:Mm:o:pSsv", long_options, envp, pCtx); while ((ch = getopt_long_r(&gos, NULL)) != -1) switch(ch) { case 'B': This.suffix = gos.optarg; /* FALLTHROUGH */ case 'b': This.dobackup = 1; break; case 'C': This.docompare = 1; break; case 'c': /* For backwards compatibility. */ break; case 'd': This.dodir = 1; break; case 'f': #if defined(UF_IMMUTABLE) && K_OS != K_OS_GNU_KFBSD && K_OS != K_OS_GNU_HURD flags = optarg; if (strtofflags(&flags, &fset, NULL)) return errx(pCtx, EX_USAGE, "%s: invalid flag", flags); iflags |= SETFLAGS; #else (void)flags; #endif break; case 'g': group = gos.optarg; break; case 'M': This.nommap = 1; break; case 'm': if (!(set = bsd_setmode(gos.optarg))) return errx(pCtx, EX_USAGE, "invalid file mode: %s", gos.optarg); This.mode = bsd_getmode(set, 0); free(set); This.mode_given = 1; break; case 'o': owner = gos.optarg; break; case 'p': This.docompare = This.dopreserve = 1; break; case 'S': This.safecopy = 1; This.verbose_hard_link_refusal = 0; break; case 's': This.dostrip = 1; This.verbose_hard_link_refusal = 0; break; case 'v': case kInstOpt_Verbose: This.verbose = 1; break; case kInstOpt_Quiet: This.verbose = 0; break; case kInstOpt_Help: usage(pCtx, 0); return 0; case kInstOpt_Version: return kbuild_version(argv[0]); case kInstOpt_IgnorePermErrors: This.ignore_perm_errors = 1; break; case kInstOpt_NoIgnorePermErrors: This.ignore_perm_errors = 0; break; case kInstOpt_HardLinkFilesWhenPossible: This.hard_link_files_when_possible = 1; break; case kInstOpt_NoHardLinkFilesWhenPossible: This.hard_link_files_when_possible = 0; break; case kInstOpt_VerboseHardLinkRefusal: This.verbose_hard_link_refusal = 1; break; case kInstOpt_QuietHardLinkRefusal: This.verbose_hard_link_refusal = 0; break; case kInstOpt_VerboseHardLinkModeMismatch: This.verbose_hard_link_mode_mismatch = 1; break; case kInstOpt_QuietHardLinkModeMismatch: This.verbose_hard_link_mode_mismatch = 0; break; case kInstOpt_Dos2Unix: This.dos2unix = 1; This.verbose_hard_link_refusal = 0; break; case kInstOpt_Unix2Dos: This.dos2unix = -1; This.verbose_hard_link_refusal = 0; break; case '?': default: return usage(pCtx, 1); } argc -= gos.optind; argv += gos.optind; /* some options make no sense when creating directories */ if (This.dostrip && This.dodir) { warnx(pCtx, "-d and -s may not be specified together"); return usage(pCtx, 1); } /* must have at least two arguments, except when creating directories */ if (argc == 0 || (argc == 1 && !This.dodir)) return usage(pCtx, 1); /* and unix2dos doesn't combine well with a couple of other options. */ if (This.dos2unix != 0) { if (This.docompare) { warnx(pCtx, "-C/-p and --dos2unix/unix2dos may not be specified together"); return usage(pCtx, 1); } if (This.dostrip) { warnx(pCtx, "-s and --dos2unix/unix2dos may not be specified together"); return usage(pCtx, 1); } } /* need to make a temp copy so we can compare stripped version */ if (This.docompare && This.dostrip) This.safecopy = 1; /* get group and owner id's */ if (group != NULL) { #ifndef _MSC_VER struct group *gp; if ((gp = getgrnam(group)) != NULL) This.gid = gp->gr_gid; else #endif { This.gid = (gid_t)numeric_id(&This, group, "group"); if (This.gid == (gid_t)-1) return 1; } } else This.gid = (gid_t)-1; if (owner != NULL) { #ifndef _MSC_VER struct passwd *pp; if ((pp = getpwnam(owner)) != NULL) This.uid = pp->pw_uid; else #endif { This.uid = (uid_t)numeric_id(&This, owner, "user"); if (This.uid == (uid_t)-1) return 1; } } else This.uid = (uid_t)-1; if (This.dodir) { for (; *argv != NULL; ++argv) { int rc = install_dir(&This, *argv); if (rc) return rc; } return EX_OK; /* NOTREACHED */ } no_target = stat(to_name = argv[argc - 1], &to_sb); if (!no_target && S_ISDIR(to_sb.st_mode)) { for (; *argv != to_name; ++argv) { int rc = install(&This, *argv, to_name, fset, iflags | DIRECTORY); if (rc) return rc; } return EX_OK; } /* can't do file1 file2 directory/file */ if (argc != 2) { warnx(pCtx, "wrong number or types of arguments"); return usage(pCtx, 1); } if (!no_target) { if (stat(*argv, &from_sb)) return err(pCtx, EX_OSERR, "%s", *argv); if (!S_ISREG(to_sb.st_mode)) { errno = EFTYPE; return err(pCtx, EX_OSERR, "%s", to_name); } if (to_sb.st_dev == from_sb.st_dev && to_sb.st_dev != 0 && to_sb.st_ino == from_sb.st_ino && to_sb.st_ino != 0 && !This.hard_link_files_when_possible) return errx(pCtx, EX_USAGE, "%s and %s are the same file", *argv, to_name); } return install(&This, *argv, to_name, fset, iflags); } #ifdef KMK_BUILTIN_STANDALONE mode_t g_fUMask; int main(int argc, char **argv, char **envp) { KMKBUILTINCTX Ctx = { "kmk_install", NULL }; umask(g_fUMask = umask(0077)); return kmk_builtin_install(argc, argv, envp, &Ctx); } #endif static u_long numeric_id(PINSTALLINSTANCE pThis, const char *name, const char *type) { u_long val; char *ep; /* * XXX * We know that uid_t's and gid_t's are unsigned longs. */ errno = 0; val = strtoul(name, &ep, 10); if (errno) return err(pThis->pCtx, -1, "%s", name); if (*ep != '\0') return errx(pThis->pCtx, -1, "unknown %s %s", type, name); return (val); } /* * install -- * build a path name and install the file */ static int install(PINSTALLINSTANCE pThis, const char *from_name, const char *to_name, u_long fset, u_int flags) { struct stat from_sb, temp_sb, to_sb; struct timeval tvb[2]; int devnull, files_match, from_fd, serrno, target; int tempcopy, temp_fd, to_fd; char backup[MAXPATHLEN], *p, pathbuf[MAXPATHLEN], tempfile[MAXPATHLEN]; int rc = EX_OK; files_match = 0; from_fd = -1; to_fd = -1; temp_fd = -1; /* If try to install NULL file to a directory, fails. */ if (flags & DIRECTORY #if defined(__EMX__) || defined(_MSC_VER) || ( stricmp(from_name, _PATH_DEVNULL) && stricmp(from_name, "nul") # ifdef __EMX__ && stricmp(from_name, "/dev/nul") # endif ) #else || strcmp(from_name, _PATH_DEVNULL) #endif ) { if (stat(from_name, &from_sb)) return err(pThis->pCtx, EX_OSERR, "%s", from_name); if (!S_ISREG(from_sb.st_mode)) { errno = EFTYPE; return err(pThis->pCtx, EX_OSERR, "%s", from_name); } /* Build the target path. */ if (flags & DIRECTORY) { (void)snprintf(pathbuf, sizeof(pathbuf), "%s/%s", to_name, (p = last_slash(from_name)) ? ++p : from_name); to_name = pathbuf; } devnull = 0; } else { devnull = 1; } target = stat(to_name, &to_sb) == 0; /* Only install to regular files. */ if (target && !S_ISREG(to_sb.st_mode)) { errno = EFTYPE; warn(pThis->pCtx, "%s", to_name); return EX_OK; } /* Only copy safe if the target exists. */ tempcopy = pThis->safecopy && target; /* Try hard linking if wanted and possible. */ if (pThis->hard_link_files_when_possible) { #ifdef KBUILD_OS_OS2 const char *why_not = "not supported on OS/2"; #else const char *why_not = NULL; if (devnull) { why_not = "/dev/null"; } else if (pThis->dostrip) { why_not = "strip (-s)"; } else if (pThis->docompare) { why_not = "compare (-C)"; } else if (pThis->dobackup) { why_not = "backup (-b/-B)"; } else if (pThis->safecopy) { why_not = "safe copy (-S)"; } else if (lstat(from_name, &temp_sb)) { why_not = "lstat on source failed"; } else if (S_ISLNK(temp_sb.st_mode)) { why_not = "symlink"; } else if (!S_ISREG(temp_sb.st_mode)) { why_not = "not regular file"; # if defined(KBUILD_OS_WINDOWS) || defined(KBUILD_OS_OS2) } else if ((pThis->mode & S_IWUSR) != (from_sb.st_mode & S_IWUSR)) { # else } else if (pThis->mode != (from_sb.st_mode & ALLPERMS)) { # endif if ( pThis->verbose_hard_link_mode_mismatch || pThis->verbose_hard_link_refusal) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: warning: Not hard linking, mode differs: 0%03o, desires 0%03o\n" "install: src path '%s'\n" "install: dst path '%s'\n", (from_sb.st_mode & ALLPERMS), pThis->mode, from_name, to_name); why_not = NULL; } else if (pThis->uid != (uid_t)-1 && pThis->uid != from_sb.st_uid) { why_not = "uid mismatch"; } else if (pThis->gid != (gid_t)-1 && pThis->gid != from_sb.st_gid) { why_not = "gid mismatch"; } else if (pThis->dos2unix > 0 && needs_dos2unix_conversion(from_name)) { why_not = "dos2unix"; } else if (pThis->dos2unix < 0 && needs_unix2dos_conversion(from_name)) { why_not = "unix2dos"; } else { int rcLink = link(from_name, to_name); if (rcLink != 0 && errno == EEXIST) { unlink(to_name); rcLink = link(from_name, to_name); } if (rcLink == 0) { if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: %s -> %s (hardlinked)\n", from_name, to_name); goto l_done; } if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: hard linking '%s' to '%s' failed: %s\n", to_name, from_name, strerror(errno)); why_not = NULL; } #endif if (why_not && pThis->verbose_hard_link_refusal) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: not hard linking '%s' to '%s' because: %s\n", to_name, from_name, why_not); /* Can't hard link or we failed, continue as nothing happend. */ } if (!devnull && (from_fd = open(from_name, O_RDONLY | O_BINARY | KMK_OPEN_NO_INHERIT, 0)) < 0) return err(pThis->pCtx, EX_OSERR, "%s", from_name); /* If we don't strip, we can compare first. */ if (pThis->docompare && !pThis->dostrip && target) { if ((to_fd = open(to_name, O_RDONLY | O_BINARY | KMK_OPEN_NO_INHERIT, 0)) < 0) { rc = err(pThis->pCtx, EX_OSERR, "%s", to_name); goto l_done; } if (devnull) files_match = to_sb.st_size == 0; else files_match = !compare(from_fd, (size_t)from_sb.st_size, to_fd, (size_t)to_sb.st_size); /* Close "to" file unless we match. */ if (!files_match) { (void)close(to_fd); to_fd = -1; } } if (!files_match) { if (tempcopy) { to_fd = create_tempfile(to_name, tempfile, sizeof(tempfile)); if (to_fd < 0) { rc = err(pThis->pCtx, EX_OSERR, "%s", tempfile); goto l_done; } } else { if ((to_fd = create_newfile(pThis, to_name, target, &to_sb)) < 0) { rc = err(pThis->pCtx, EX_OSERR, "%s", to_name); goto l_done; } if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: %s -> %s\n", from_name, to_name); } if (!devnull) { rc = copy(pThis, from_fd, from_name, &to_fd, tempcopy ? tempfile : to_name); if (rc) goto l_done; } } if (pThis->dostrip) { #if defined(__EMX__) || defined(_MSC_VER) /* close before we strip. */ close(to_fd); to_fd = -1; #endif rc = strip(pThis, tempcopy ? tempfile : to_name); if (rc) goto l_done; /* * Re-open our fd on the target, in case we used a strip * that does not work in-place -- like GNU binutils strip. */ #if !defined(__EMX__) && !defined(_MSC_VER) close(to_fd); #endif to_fd = open(tempcopy ? tempfile : to_name, O_RDONLY | O_BINARY | KMK_OPEN_NO_INHERIT, 0); if (to_fd < 0) { rc = err(pThis->pCtx, EX_OSERR, "stripping %s", to_name); goto l_done; } } /* * Compare the stripped temp file with the target. */ if (pThis->docompare && pThis->dostrip && target) { temp_fd = to_fd; /* Re-open to_fd using the real target name. */ if ((to_fd = open(to_name, O_RDONLY | O_BINARY | KMK_OPEN_NO_INHERIT, 0)) < 0) { rc = err(pThis->pCtx, EX_OSERR, "%s", to_name); goto l_done; } if (fstat(temp_fd, &temp_sb)) { serrno = errno; (void)unlink(tempfile); errno = serrno; rc = err(pThis->pCtx, EX_OSERR, "%s", tempfile); goto l_done; } if (compare(temp_fd, (size_t)temp_sb.st_size, to_fd, (size_t)to_sb.st_size) == 0) { /* * If target has more than one link we need to * replace it in order to snap the extra links. * Need to preserve target file times, though. */ #if !defined(_MSC_VER) && !defined(__EMX__) if (to_sb.st_nlink != 1) { tvb[0].tv_sec = to_sb.st_atime; tvb[0].tv_usec = 0; tvb[1].tv_sec = to_sb.st_mtime; tvb[1].tv_usec = 0; (void)utimes(tempfile, tvb); } else #endif { files_match = 1; (void)unlink(tempfile); } (void) close(temp_fd); temp_fd = -1; } } /* * Move the new file into place if doing a safe copy * and the files are different (or just not compared). */ if (tempcopy && !files_match) { #ifdef UF_IMMUTABLE /* Try to turn off the immutable bits. */ if (to_sb.st_flags & NOCHANGEBITS) (void)chflags(to_name, to_sb.st_flags & ~NOCHANGEBITS); #endif if (pThis->dobackup) { if ( (size_t)snprintf(backup, MAXPATHLEN, "%s%s", to_name, pThis->suffix) != strlen(to_name) + strlen(pThis->suffix)) { unlink(tempfile); rc = errx(pThis->pCtx, EX_OSERR, "%s: backup filename too long", to_name); goto l_done; } if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: %s -> %s\n", to_name, backup); if (rename(to_name, backup) < 0) { serrno = errno; unlink(tempfile); errno = serrno; rc = err(pThis->pCtx, EX_OSERR, "rename: %s to %s", to_name, backup); goto l_done; } } if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: %s -> %s\n", from_name, to_name); if (rename(tempfile, to_name) < 0) { serrno = errno; unlink(tempfile); errno = serrno; rc = err(pThis->pCtx, EX_OSERR, "rename: %s to %s", tempfile, to_name); goto l_done; } /* Re-open to_fd so we aren't hosed by the rename(2). */ (void) close(to_fd); if ((to_fd = open(to_name, O_RDONLY | O_BINARY | KMK_OPEN_NO_INHERIT, 0)) < 0) { rc = err(pThis->pCtx, EX_OSERR, "%s", to_name); goto l_done; } } /* * Preserve the timestamp of the source file if necessary. */ if (pThis->dopreserve && !files_match && !devnull) { tvb[0].tv_sec = from_sb.st_atime; tvb[0].tv_usec = 0; tvb[1].tv_sec = from_sb.st_mtime; tvb[1].tv_usec = 0; (void)utimes(to_name, tvb); } if (fstat(to_fd, &to_sb) == -1) { serrno = errno; (void)unlink(to_name); errno = serrno; rc = err(pThis->pCtx, EX_OSERR, "%s", to_name); goto l_done; } /* * Set owner, group, mode for target; do the chown first, * chown may lose the setuid bits. */ #ifdef UF_IMMUTABLE if ((pThis->gid != (gid_t)-1 && pThis->gid != to_sb.st_gid) || (pThis->uid != (uid_t)-1 && pThis->uid != to_sb.st_uid) || (pThis->mode != (to_sb.st_mode & ALLPERMS))) { /* Try to turn off the immutable bits. */ if (to_sb.st_flags & NOCHANGEBITS) (void)fchflags(to_fd, to_sb.st_flags & ~NOCHANGEBITS); } #endif if ((pThis->gid != (gid_t)-1 && pThis->gid != to_sb.st_gid) || (pThis->uid != (uid_t)-1 && pThis->uid != to_sb.st_uid)) if (fchown(to_fd, pThis->uid, pThis->gid) == -1) { if (errno == EPERM && pThis->ignore_perm_errors) { warn(pThis->pCtx, "%s: ignoring chown uid=%d gid=%d failure", to_name, (int)pThis->uid, (int)pThis->gid); } else { serrno = errno; (void)unlink(to_name); errno = serrno; rc = err(pThis->pCtx, EX_OSERR,"%s: chown/chgrp", to_name); goto l_done; } } if (pThis->mode != (to_sb.st_mode & ALLPERMS)) if (fchmod(to_fd, pThis->mode)) { serrno = errno; if (serrno == EPERM && pThis->ignore_perm_errors) { fchmod(to_fd, pThis->mode & (ALLPERMS & ~0007000)); errno = errno; warn(pThis->pCtx, "%s: ignoring chmod 0%o failure", to_name, (int)(pThis->mode & ALLPERMS)); } else { serrno = errno; (void)unlink(to_name); errno = serrno; rc = err(pThis->pCtx, EX_OSERR, "%s: chmod", to_name); goto l_done; } } /* * If provided a set of flags, set them, otherwise, preserve the * flags, except for the dump flag. * NFS does not support flags. Ignore EOPNOTSUPP flags if we're just * trying to turn off UF_NODUMP. If we're trying to set real flags, * then warn if the the fs doesn't support it, otherwise fail. */ #ifdef UF_IMMUTABLE if ( !devnull && (flags & SETFLAGS || (from_sb.st_flags & ~UF_NODUMP) != to_sb.st_flags) && fchflags(to_fd, flags & SETFLAGS ? fset : from_sb.st_flags & ~UF_NODUMP)) { if (flags & SETFLAGS) { if (errno == EOPNOTSUPP) warn(pThis->pCtx, "%s: chflags", to_name); else { serrno = errno; (void)unlink(to_name); errno = serrno; rc = err(pThis->pCtx, EX_OSERR, "%s: chflags", to_name); goto l_done; } } } #endif l_done: if (to_fd >= 0) (void)close(to_fd); if (temp_fd >= 0) (void)close(temp_fd); if (from_fd >= 0 && !devnull) (void)close(from_fd); return rc; } /* * compare -- * compare two files; non-zero means files differ */ static int compare(int from_fd, size_t from_len, int to_fd, size_t to_len) { char buf1[MAXBSIZE]; char buf2[MAXBSIZE]; int n1, n2; int rv; if (from_len != to_len) return 1; if (from_len <= MAX_CMP_SIZE) { rv = 0; lseek(from_fd, 0, SEEK_SET); lseek(to_fd, 0, SEEK_SET); while (rv == 0) { n1 = read(from_fd, buf1, sizeof(buf1)); if (n1 == 0) break; /* EOF */ else if (n1 > 0) { n2 = read(to_fd, buf2, n1); if (n2 == n1) rv = memcmp(buf1, buf2, n1); else rv = 1; /* out of sync */ } else rv = 1; /* read failure */ } lseek(from_fd, 0, SEEK_SET); lseek(to_fd, 0, SEEK_SET); } else rv = 1; /* don't bother in this case */ return rv; } /* * create_tempfile -- * create a temporary file based on path and open it */ int create_tempfile(const char *path, char *temp, size_t tsize) { static char s_szTemplate[] = "INS@XXXXXX"; const char *p = last_slash(path); if (p) { size_t cchDir = ++p - path; if (cchDir + sizeof(s_szTemplate) <= tsize) { memcpy(temp, path, cchDir); memcpy(&temp[cchDir], s_szTemplate, sizeof(s_szTemplate)); } else return EOVERFLOW; } else if (tsize >= sizeof(s_szTemplate)) memcpy(temp, s_szTemplate, sizeof(s_szTemplate)); else return EOVERFLOW; return (mkstemp(temp)); } /* * create_newfile -- * create a new file, overwriting an existing one if necessary */ int create_newfile(PINSTALLINSTANCE pThis, const char *path, int target, struct stat *sbp) { char backup[MAXPATHLEN]; int saved_errno = 0; int newfd; if (target) { /* * Unlink now... avoid ETXTBSY errors later. Try to turn * off the append/immutable bits -- if we fail, go ahead, * it might work. */ #ifdef UF_IMMUTABLE if (sbp->st_flags & NOCHANGEBITS) (void)chflags(path, sbp->st_flags & ~NOCHANGEBITS); #endif if (pThis->dobackup) { if ( (size_t)snprintf(backup, MAXPATHLEN, "%s%s", path, pThis->suffix) != strlen(path) + strlen(pThis->suffix)) { errx(pThis->pCtx, EX_OSERR, "%s: backup filename too long", path); errno = ENAMETOOLONG; return -1; } (void)snprintf(backup, MAXPATHLEN, "%s%s", path, pThis->suffix); if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: %s -> %s\n", path, backup); if (rename(path, backup) < 0) { err(pThis->pCtx, EX_OSERR, "rename: %s to %s", path, backup); return -1; } } else if (unlink(path) < 0) saved_errno = errno; } newfd = open(path, O_CREAT | O_RDWR | O_TRUNC | O_BINARY | KMK_OPEN_NO_INHERIT, S_IRUSR | S_IWUSR); if (newfd < 0 && saved_errno != 0) errno = saved_errno; return newfd; } /* * Write error handler. */ static int write_error(PINSTALLINSTANCE pThis, int *ptr_to_fd, const char *to_name, int nw) { int serrno = errno; (void)close(*ptr_to_fd); *ptr_to_fd = -1; (void)unlink(to_name); errno = nw > 0 ? EIO : serrno; return err(pThis->pCtx, EX_OSERR, "%s", to_name); } /* * Read error handler. */ static int read_error(PINSTALLINSTANCE pThis, const char *from_name, int *ptr_to_fd, const char *to_name) { int serrno = errno; (void)close(*ptr_to_fd); *ptr_to_fd = -1; (void)unlink(to_name); errno = serrno; return err(pThis->pCtx, EX_OSERR, "%s", from_name); } /* * copy -- * copy from one file to another */ static int copy(PINSTALLINSTANCE pThis, int from_fd, const char *from_name, int *ptr_to_fd, const char *to_name) { KBOOL fPendingCr = K_FALSE; KSIZE cchDst; int nr, nw; char buf[MAXBSIZE]; int to_fd = *ptr_to_fd; /* Rewind file descriptors. */ if (lseek(from_fd, (off_t)0, SEEK_SET) == (off_t)-1) return err(pThis->pCtx, EX_OSERR, "lseek: %s", from_name); if (lseek(to_fd, (off_t)0, SEEK_SET) == (off_t)-1) return err(pThis->pCtx, EX_OSERR, "lseek: %s", to_name); if (pThis->dos2unix == 0) { /* * Copy bytes, no conversion. */ while ((nr = read(from_fd, buf, sizeof(buf))) > 0) if ((nw = write(to_fd, buf, nr)) != nr) return write_error(pThis, ptr_to_fd, to_name, nw); } else if (pThis->dos2unix > 0) { /* * CRLF -> LF is a reduction, so we can work with full buffers. */ while ((nr = read(from_fd, buf, sizeof(buf))) > 0) { if ( fPendingCr && buf[0] != '\n' && (nw = write(to_fd, "\r", 1)) != 1) return write_error(pThis, ptr_to_fd, to_name, nw); fPendingCr = dos2unix_convert_to_unix(buf, nr, buf, &cchDst); nw = write(to_fd, buf, cchDst); if (nw != (int)cchDst) return write_error(pThis, ptr_to_fd, to_name, nw); } } else { /* * LF -> CRLF is an expansion, so we work with half buffers, reading * into the upper half of the buffer and expanding into the full buffer. * The conversion will never expand to more than the double size. * * Note! We do not convert valid CRLF line endings. This gives us * valid DOS text, but no round-trip conversion. */ char * const pchSrc = &buf[sizeof(buf) / 2]; while ((nr = read(from_fd, pchSrc, sizeof(buf) / 2)) > 0) { if ( fPendingCr && pchSrc[0] != '\n' && (nw = write(to_fd, "\r", 1))!= 1) return write_error(pThis, ptr_to_fd, to_name, nw); fPendingCr = dos2unix_convert_to_dos(pchSrc, nr, buf, &cchDst); nw = write(to_fd, buf, cchDst); if (nw != (int)cchDst) return write_error(pThis, ptr_to_fd, to_name, nw); } } /* Check for read error. */ if (nr != 0) return read_error(pThis, from_name, ptr_to_fd, to_name); /* When converting, we might have a pending final CR to write. */ if ( fPendingCr && (nw = write(to_fd, "\r", 1))!= 1) return write_error(pThis, ptr_to_fd, to_name, nw); return EX_OK; } /* * strip -- * use strip(1) to strip the target file */ static int strip(PINSTALLINSTANCE pThis, const char *to_name) { #if defined(__EMX__) || defined(_MSC_VER) const char *stripbin = getenv("STRIPBIN"); if (stripbin == NULL) stripbin = "strip"; (void)pThis; return spawnlp(P_WAIT, stripbin, stripbin, to_name, NULL); #else const char *stripbin; int serrno, status; pid_t pid; pid = fork(); switch (pid) { case -1: serrno = errno; (void)unlink(to_name); errno = serrno; return err(pThis->pCtx, EX_TEMPFAIL, "fork"); case 0: stripbin = getenv("STRIPBIN"); if (stripbin == NULL) stripbin = "strip"; execlp(stripbin, stripbin, to_name, (char *)NULL); err(pThis->pCtx, EX_OSERR, "exec(%s)", stripbin); exit(EX_OSERR); default: if (waitpid(pid, &status, 0) == -1 || status) { serrno = errno; (void)unlink(to_name); errno = serrno; return err(pThis->pCtx, EX_SOFTWARE, "waitpid"); /* NOTREACHED */ } } return 0; #endif } /* * install_dir -- * build directory heirarchy */ static int install_dir(PINSTALLINSTANCE pThis, char *path) { char *p; struct stat sb; int ch; for (p = path;; ++p) if ( !*p || ( p != path && IS_SLASH(*p) #if defined(_MSC_VER) /* stat("C:") fails (VC++ v10). Just skip it since it's unnecessary. */ && (p - path != 2 || p[-1] != ':') #endif )) { ch = *p; *p = '\0'; if (stat(path, &sb)) { if (errno != ENOENT || mkdir(path, 0755) < 0) { return err(pThis->pCtx, EX_OSERR, "mkdir %s", path); /* NOTREACHED */ } else if (pThis->verbose) kmk_builtin_ctx_printf(pThis->pCtx, 0, "install: mkdir %s\n", path); } else if (!S_ISDIR(sb.st_mode)) return errx(pThis->pCtx, EX_OSERR, "%s exists but is not a directory", path); if (!(*p = ch)) break; } if ((pThis->gid != (gid_t)-1 || pThis->uid != (uid_t)-1) && chown(path, pThis->uid, pThis->gid)) warn(pThis->pCtx, "chown %u:%u %s", pThis->uid, pThis->gid, path); if (chmod(path, pThis->mode)) warn(pThis->pCtx, "chmod %o %s", pThis->mode, path); return EX_OK; } /* * usage -- * print a usage message and die */ static int usage(PKMKBUILTINCTX pCtx, int fIsErr) { kmk_builtin_ctx_printf(pCtx, fIsErr, "usage: %s [-bCcpSsv] [--[no-]hard-link-files-when-possible]\n" " [--verbose-hard-link-refusal] [--verbose-hard-link-mode-mismatch]\n" " [--[no-]ignore-perm-errors] [-B suffix] [-f flags] [-g group]\n" " [-m mode] [-o owner] [--dos2unix|--unix2dos] file1 file2\n" " or: %s [-bCcpSsv] [--[no-]ignore-perm-errors] [-B suffix] [-f flags]\n" " [-g group] [-m mode] [-o owner] file1 ... fileN directory\n" " or: %s -d [-v] [-g group] [-m mode] [-o owner] directory ...\n" " or: %s --help\n" " or: %s --version\n", pCtx->pszProgName, pCtx->pszProgName, pCtx->pszProgName, pCtx->pszProgName, pCtx->pszProgName); return EX_USAGE; } /* figures out where the last slash or colon is. */ static char * last_slash(const char *path) { #if defined(__WIN32__) || defined(__WIN64__) || defined(__OS2__) char *p = (char *)strrchr(path, '/'); if (p) { char *p2 = strrchr(p, '\\'); if (p2) p = p2; } else { p = (char *)strrchr(path, '\\'); if (!p && isalpha(path[0]) && path[1] == ':') p = (char *)&path[1]; } return p; #else return strrchr(path, '/'); #endif } /** * Checks if @a pszFilename actually needs dos2unix conversion. * * @returns boolean. * @param pszFilename The name of the file to check. */ static KBOOL needs_dos2unix_conversion(const char *pszFilename) { KU32 fStyle = 0; int iErr = dos2unix_analyze_file(pszFilename, &fStyle, NULL, NULL); return iErr != 0 || (fStyle & (DOS2UNIX_STYLE_MASK | DOS2UNIX_F_BINARY)) != DOS2UNIX_STYLE_UNIX; } /** * Checks if @a pszFilename actually needs unix2dos conversion. * * @returns boolean. * @param pszFilename The name of the file to check. */ static KBOOL needs_unix2dos_conversion(const char *pszFilename) { KU32 fStyle = 0; int iErr = dos2unix_analyze_file(pszFilename, &fStyle, NULL, NULL); return iErr != 0 || (fStyle & (DOS2UNIX_STYLE_MASK | DOS2UNIX_F_BINARY)) != DOS2UNIX_STYLE_DOS; }