From 22d18785b2c41f1a8937b712920b4342f7596a7e Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Mon, 8 Feb 2021 10:45:59 +0200

Subject: [PATCH 1/9] Clean up file unpack iteration logic a bit

Handle rpmfiNext() in the while-condition directly to make it more like

similar other constructs elsewhere, adjust for the end of iteration

code after the loop. Also take the file index from rpmfiNext() so

we don't need multiple calls to rpmfiFX() later.

---

 lib/fsm.c | 19 +++++++------------

 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 35dcda081c..7c291adb02 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -841,6 +841,7 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

     struct stat sb;

     int saveerrno = errno;

     int rc = 0;

+    int fx = -1;

     int nodigest = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOFILEDIGEST) ? 1 : 0;

     int nofcaps = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOCAPS) ? 1 : 0;

     int firsthardlink = -1;

@@ -862,17 +863,8 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

     /* Detect and create directories not explicitly in package. */

     rc = fsmMkdirs(files, fs, plugins);

-    while (!rc) {

-	/* Read next payload header. */

-	rc = rpmfiNext(fi);

-

-	if (rc < 0) {

-	    if (rc == RPMERR_ITER_END)

-		rc = 0;

-	    break;

-	}

-

-	action = rpmfsGetAction(fs, rpmfiFX(fi));

+    while (!rc && (fx = rpmfiNext(fi)) >= 0) {

+	action = rpmfsGetAction(fs, fx);

 	skip = XFA_SKIPPING(action);

 	if (action != FA_TOUCH) {

 	    suffix = S_ISDIR(rpmfiFMode(fi)) ? NULL : tid;

@@ -896,7 +888,7 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	if (rc) {

 	    skip = 1;

 	} else {

-	    setFileState(fs, rpmfiFX(fi));

+	    setFileState(fs, fx);

 	}

         if (!skip) {

@@ -1005,6 +997,9 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	fpath = _free(fpath);

     }

+    if (!rc && fx != RPMERR_ITER_END)

+	rc = fx;

+

     rpmswAdd(rpmtsOp(ts, RPMTS_OP_UNCOMPRESS), fdOp(payload, FDSTAT_READ));

     rpmswAdd(rpmtsOp(ts, RPMTS_OP_DIGEST), fdOp(payload, FDSTAT_DIGEST));

From c0dc57b820791dd76ce8baafac59b9a58ab0f0d3 Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 08:25:28 +0200

Subject: [PATCH 2/9] Drop unused filename variable

---

 lib/fsm.c | 2 --

 1 file changed, 2 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 7c291adb02..41b6267ddc 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -959,11 +959,9 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	    /* On FA_TOUCH no hardlinks are created thus this is skipped. */

 	    /* we skip the hard linked file containing the content */

 	    /* write the content to the first used instead */

-	    char *fn = rpmfilesFN(files, firsthardlink);

 	    rc = rpmfiArchiveReadToFilePsm(fi, firstlinkfile, nodigest, psm);

 	    wfd_close(&firstlinkfile);

 	    firsthardlink = -1;

-	    free(fn);

 	}

         if (rc) {

From dcb5791066afd5caa1003a5d35903a7f5dc79cc2 Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 09:57:17 +0200

Subject: [PATCH 3/9] Don't update path info if rename failed on file commit

---

 lib/fsm.c | 16 +++++++++-------

 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 41b6267ddc..c581a918a5 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -773,14 +773,16 @@ static int fsmCommit(char **path, rpmfi fi, rpmFileAction action, const char *su

 	/* Rename temporary to final file name if needed. */

 	if (dest != *path) {

 	    rc = fsmRename(*path, dest);

-	    if (!rc && nsuffix) {

-		char * opath = fsmFsPath(fi, NULL);

-		rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),

-		       opath, dest);

-		free(opath);

+	    if (!rc) {

+		if (nsuffix) {

+		    char * opath = fsmFsPath(fi, NULL);

+		    rpmlog(RPMLOG_WARNING, _("%s created as %s\n"),

+			   opath, dest);

+		    free(opath);

+		}

+		free(*path);

+		*path = dest;

 	    }

-	    free(*path);

-	    *path = dest;

 	}

     }

From 7fdf248e7d29a244b97c46b19be0df64992fdfae Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 09:47:19 +0200

Subject: [PATCH 4/9] Refactor file install and remove around a common struct

Collect the common state info into a struct shared by both file install

and remove, update code accordingly. The change looks much more drastic

than it is - it's just adding fp-> prefix to a lot of places.

While we're at it, remember the state data throughout the operation.

No functional changes here, just paving way for the next steps which

will look clearer with these pre-requisites in place.

---

 lib/fsm.c | 158 +++++++++++++++++++++++++++++-------------------------

 1 file changed, 85 insertions(+), 73 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index c581a918a5..9dba30560f 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -38,6 +38,14 @@ static int strict_erasures = 0;

 #define _dirPerms 0755

 #define _filePerms 0644

+struct filedata_s {

+    int skip;

+    rpmFileAction action;

+    const char *suffix;

+    char *fpath;

+    struct stat sb;

+};

+

 /* 

  * XXX Forward declarations for previously exported functions to avoid moving 

  * things around needlessly 

@@ -840,19 +848,16 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

     rpmfi fi = rpmfiNewArchiveReader(payload, files, RPMFI_ITER_READ_ARCHIVE);

     rpmfs fs = rpmteGetFileStates(te);

     rpmPlugins plugins = rpmtsPlugins(ts);

-    struct stat sb;

     int saveerrno = errno;

     int rc = 0;

     int fx = -1;

+    int fc = rpmfilesFC(files);

     int nodigest = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOFILEDIGEST) ? 1 : 0;

     int nofcaps = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOCAPS) ? 1 : 0;

     int firsthardlink = -1;

     FD_t firstlinkfile = NULL;

-    int skip;

-    rpmFileAction action;

     char *tid = NULL;

-    const char *suffix;

-    char *fpath = NULL;

+    struct filedata_s *fdata = xcalloc(fc, sizeof(*fdata));

     if (fi == NULL) {

 	rc = RPMERR_BAD_MAGIC;

@@ -866,96 +871,99 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

     rc = fsmMkdirs(files, fs, plugins);

     while (!rc && (fx = rpmfiNext(fi)) >= 0) {

-	action = rpmfsGetAction(fs, fx);

-	skip = XFA_SKIPPING(action);

-	if (action != FA_TOUCH) {

-	    suffix = S_ISDIR(rpmfiFMode(fi)) ? NULL : tid;

+	struct filedata_s *fp = &fdata[fx];

+	fp->action = rpmfsGetAction(fs, fx);

+	fp->skip = XFA_SKIPPING(fp->action);

+	if (fp->action != FA_TOUCH) {

+	    fp->suffix = S_ISDIR(rpmfiFMode(fi)) ? NULL : tid;

 	} else {

-	    suffix = NULL;

+	    fp->suffix = NULL;

 	}

-	fpath = fsmFsPath(fi, suffix);

+	fp->fpath = fsmFsPath(fi, fp->suffix);

 	/* Remap file perms, owner, and group. */

-	rc = rpmfiStat(fi, 1, &sb);

+	rc = rpmfiStat(fi, 1, &fp->sb);

-	fsmDebug(fpath, action, &sb);

+	fsmDebug(fp->fpath, fp->action, &fp->sb);

         /* Exit on error. */

         if (rc)

             break;

 	/* Run fsm file pre hook for all plugins */

-	rc = rpmpluginsCallFsmFilePre(plugins, fi, fpath,

-				      sb.st_mode, action);

+	rc = rpmpluginsCallFsmFilePre(plugins, fi, fp->fpath,

+				      fp->sb.st_mode, fp->action);

 	if (rc) {

-	    skip = 1;

+	    fp->skip = 1;

 	} else {

 	    setFileState(fs, fx);

 	}

-        if (!skip) {

+        if (!fp->skip) {

 	    int setmeta = 1;

 	    /* Directories replacing something need early backup */

-	    if (!suffix) {

-		rc = fsmBackup(fi, action);

+	    if (!fp->suffix) {

+		rc = fsmBackup(fi, fp->action);

 	    }

 	    /* Assume file does't exist when tmp suffix is in use */

-	    if (!suffix) {

-		rc = fsmVerify(fpath, fi);

+	    if (!fp->suffix) {

+		rc = fsmVerify(fp->fpath, fi);

 	    } else {

 		rc = RPMERR_ENOENT;

 	    }

 	    /* See if the file was removed while our attention was elsewhere */

-	    if (rc == RPMERR_ENOENT && action == FA_TOUCH) {

-		rpmlog(RPMLOG_DEBUG, "file %s vanished unexpectedly\n", fpath);

-		action = FA_CREATE;

-		fsmDebug(fpath, action, &sb);

+	    if (rc == RPMERR_ENOENT && fp->action == FA_TOUCH) {

+		rpmlog(RPMLOG_DEBUG, "file %s vanished unexpectedly\n",

+			fp->fpath);

+		fp->action = FA_CREATE;

+		fsmDebug(fp->fpath, fp->action, &fp->sb);

 	    }

 	    /* When touching we don't need any of this... */

-	    if (action == FA_TOUCH)

+	    if (fp->action == FA_TOUCH)

 		goto touch;

-            if (S_ISREG(sb.st_mode)) {

+            if (S_ISREG(fp->sb.st_mode)) {

 		if (rc == RPMERR_ENOENT) {

-		    rc = fsmMkfile(fi, fpath, files, psm, nodigest,

+		    rc = fsmMkfile(fi, fp->fpath, files, psm, nodigest,

 				   &setmeta, &firsthardlink, &firstlinkfile);

 		}

-            } else if (S_ISDIR(sb.st_mode)) {

+            } else if (S_ISDIR(fp->sb.st_mode)) {

                 if (rc == RPMERR_ENOENT) {

-                    mode_t mode = sb.st_mode;

+                    mode_t mode = fp->sb.st_mode;

                     mode &= ~07777;

                     mode |=  00700;

-                    rc = fsmMkdir(fpath, mode);

+                    rc = fsmMkdir(fp->fpath, mode);

                 }

-            } else if (S_ISLNK(sb.st_mode)) {

+            } else if (S_ISLNK(fp->sb.st_mode)) {

 		if (rc == RPMERR_ENOENT) {

-		    rc = fsmSymlink(rpmfiFLink(fi), fpath);

+		    rc = fsmSymlink(rpmfiFLink(fi), fp->fpath);

 		}

-            } else if (S_ISFIFO(sb.st_mode)) {

+            } else if (S_ISFIFO(fp->sb.st_mode)) {

                 /* This mimics cpio S_ISSOCK() behavior but probably isn't right */

                 if (rc == RPMERR_ENOENT) {

-                    rc = fsmMkfifo(fpath, 0000);

+                    rc = fsmMkfifo(fp->fpath, 0000);

                 }

-            } else if (S_ISCHR(sb.st_mode) ||

-                       S_ISBLK(sb.st_mode) ||

-                       S_ISSOCK(sb.st_mode))

+            } else if (S_ISCHR(fp->sb.st_mode) ||

+                       S_ISBLK(fp->sb.st_mode) ||

+                       S_ISSOCK(fp->sb.st_mode))

             {

                 if (rc == RPMERR_ENOENT) {

-                    rc = fsmMknod(fpath, sb.st_mode, sb.st_rdev);

+                    rc = fsmMknod(fp->fpath, fp->sb.st_mode, fp->sb.st_rdev);

                 }

             } else {

                 /* XXX Special case /dev/log, which shouldn't be packaged anyways */

-                if (!IS_DEV_LOG(fpath))

+                if (!IS_DEV_LOG(fp->fpath))

                     rc = RPMERR_UNKNOWN_FILETYPE;

             }

 touch:

 	    /* Set permissions, timestamps etc for non-hardlink entries */

 	    if (!rc && setmeta) {

-		rc = fsmSetmeta(fpath, fi, plugins, action, &sb, nofcaps);

+		rc = fsmSetmeta(fp->fpath, fi, plugins, fp->action,

+				&fp->sb, nofcaps);

 	    }

         } else if (firsthardlink >= 0 && rpmfiArchiveHasContent(fi)) {

 	    /* On FA_TOUCH no hardlinks are created thus this is skipped. */

@@ -967,10 +975,10 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	}

         if (rc) {

-            if (!skip) {

+            if (!fp->skip) {

                 /* XXX only erase if temp fn w suffix is in use */

-                if (suffix) {

-		    (void) fsmRemove(fpath, sb.st_mode);

+                if (fp->suffix) {

+		    (void) fsmRemove(fp->fpath, fp->sb.st_mode);

                 }

                 errno = saveerrno;

             }

@@ -978,23 +986,22 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	    /* Notify on success. */

 	    rpmpsmNotify(psm, RPMCALLBACK_INST_PROGRESS, rpmfiArchiveTell(fi));

-	    if (!skip) {

+	    if (!fp->skip) {

 		/* Backup file if needed. Directories are handled earlier */

-		if (suffix)

-		    rc = fsmBackup(fi, action);

+		if (fp->suffix)

+		    rc = fsmBackup(fi, fp->action);

 		if (!rc)

-		    rc = fsmCommit(&fpath, fi, action, suffix);

+		    rc = fsmCommit(&fp->fpath, fi, fp->action, fp->suffix);

 	    }

 	}

 	if (rc)

-	    *failedFile = xstrdup(fpath);

+	    *failedFile = xstrdup(fp->fpath);

 	/* Run fsm file post hook for all plugins */

-	rpmpluginsCallFsmFilePost(plugins, fi, fpath,

-				  sb.st_mode, action, rc);

-	fpath = _free(fpath);

+	rpmpluginsCallFsmFilePost(plugins, fi, fp->fpath,

+				  fp->sb.st_mode, fp->action, rc);

     }

     if (!rc && fx != RPMERR_ITER_END)

@@ -1010,7 +1017,9 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

     rpmfiFree(fi);

     Fclose(payload);

     free(tid);

-    free(fpath);

+    for (int i = 0; i < fc; i++)

+	free(fdata[i].fpath);

+    free(fdata);

     return rc;

 }

@@ -1022,29 +1031,31 @@ int rpmPackageFilesRemove(rpmts ts, rpmte te, rpmfiles files,

     rpmfi fi = rpmfilesIter(files, RPMFI_ITER_BACK);

     rpmfs fs = rpmteGetFileStates(te);

     rpmPlugins plugins = rpmtsPlugins(ts);

-    struct stat sb;

+    int fc = rpmfilesFC(files);

+    int fx = -1;

+    struct filedata_s *fdata = xcalloc(fc, sizeof(*fdata));

     int rc = 0;

-    char *fpath = NULL;

-    while (!rc && rpmfiNext(fi) >= 0) {

-	rpmFileAction action = rpmfsGetAction(fs, rpmfiFX(fi));

-	fpath = fsmFsPath(fi, NULL);

-	rc = fsmStat(fpath, 1, &sb);

+    while (!rc && (fx = rpmfiNext(fi)) >= 0) {

+	struct filedata_s *fp = &fdata[fx];

+	fp->action = rpmfsGetAction(fs, rpmfiFX(fi));

+	fp->fpath = fsmFsPath(fi, NULL);

+	rc = fsmStat(fp->fpath, 1, &fp->sb);

-	fsmDebug(fpath, action, &sb);

+	fsmDebug(fp->fpath, fp->action, &fp->sb);

 	/* Run fsm file pre hook for all plugins */

-	rc = rpmpluginsCallFsmFilePre(plugins, fi, fpath,

-				      sb.st_mode, action);

+	rc = rpmpluginsCallFsmFilePre(plugins, fi, fp->fpath,

+				      fp->sb.st_mode, fp->action);

-	if (!XFA_SKIPPING(action))

-	    rc = fsmBackup(fi, action);

+	if (!XFA_SKIPPING(fp->action))

+	    rc = fsmBackup(fi, fp->action);

         /* Remove erased files. */

-        if (action == FA_ERASE) {

+        if (fp->action == FA_ERASE) {

 	    int missingok = (rpmfiFFlags(fi) & (RPMFILE_MISSINGOK | RPMFILE_GHOST));

-	    rc = fsmRemove(fpath, sb.st_mode);

+	    rc = fsmRemove(fp->fpath, fp->sb.st_mode);

 	    /*

 	     * Missing %ghost or %missingok entries are not errors.

@@ -1069,20 +1080,20 @@ int rpmPackageFilesRemove(rpmts ts, rpmte te, rpmfiles files,

 	    if (rc) {

 		int lvl = strict_erasures ? RPMLOG_ERR : RPMLOG_WARNING;

 		rpmlog(lvl, _("%s %s: remove failed: %s\n"),

-			S_ISDIR(sb.st_mode) ? _("directory") : _("file"),

-			fpath, strerror(errno));

+			S_ISDIR(fp->sb.st_mode) ? _("directory") : _("file"),

+			fp->fpath, strerror(errno));

             }

         }

 	/* Run fsm file post hook for all plugins */

-	rpmpluginsCallFsmFilePost(plugins, fi, fpath,

-				  sb.st_mode, action, rc);

+	rpmpluginsCallFsmFilePost(plugins, fi, fp->fpath,

+				  fp->sb.st_mode, fp->action, rc);

         /* XXX Failure to remove is not (yet) cause for failure. */

         if (!strict_erasures) rc = 0;

 	if (rc)

-	    *failedFile = xstrdup(fpath);

+	    *failedFile = xstrdup(fp->fpath);

 	if (rc == 0) {

 	    /* Notify on success. */

@@ -1090,10 +1101,11 @@ int rpmPackageFilesRemove(rpmts ts, rpmte te, rpmfiles files,

 	    rpm_loff_t amount = rpmfiFC(fi) - rpmfiFX(fi);

 	    rpmpsmNotify(psm, RPMCALLBACK_UNINST_PROGRESS, amount);

 	}

-	fpath = _free(fpath);

     }

-    free(fpath);

+    for (int i = 0; i < fc; i++)

+	free(fdata[i].fpath);

+    free(fdata);

     rpmfiFree(fi);

     return rc;

From 202c9e9cd2e199b7e7c9655704a98ab2d4fad69c Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 10:08:27 +0200

Subject: [PATCH 5/9] Refactor fsmMkfile() to take advantage of the new state

 struct

Move setmeta into the struct too (we'll want this later anyhow),

and now we only need to pass the struct to fsmMkfile(). One less

argument to pass around, it has way too many still.

No functional changes.

---

 lib/fsm.c | 22 +++++++++++-----------

 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 9dba30560f..80ca234b1e 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -39,6 +39,7 @@ static int strict_erasures = 0;

 #define _filePerms 0644

 struct filedata_s {

+    int setmeta;

     int skip;

     rpmFileAction action;

     const char *suffix;

@@ -279,8 +280,8 @@ static int expandRegular(rpmfi fi, const char *dest, rpmpsm psm, int nodigest)

     return rc;

 }

-static int fsmMkfile(rpmfi fi, const char *dest, rpmfiles files,

-		     rpmpsm psm, int nodigest, int *setmeta,

+static int fsmMkfile(rpmfi fi, struct filedata_s *fp, rpmfiles files,

+		     rpmpsm psm, int nodigest,

 		     int * firsthardlink, FD_t *firstlinkfile)

 {

     int rc = 0;

@@ -290,11 +291,11 @@ static int fsmMkfile(rpmfi fi, const char *dest, rpmfiles files,

 	/* Create first hardlinked file empty */

 	if (*firsthardlink < 0) {

 	    *firsthardlink = rpmfiFX(fi);

-	    rc = wfd_open(firstlinkfile, dest);

+	    rc = wfd_open(firstlinkfile, fp->fpath);

 	} else {

 	    /* Create hard links for others */

 	    char *fn = rpmfilesFN(files, *firsthardlink);

-	    rc = link(fn, dest);

+	    rc = link(fn, fp->fpath);

 	    if (rc < 0) {

 		rc = RPMERR_LINK_FAILED;

 	    }

@@ -305,14 +306,14 @@ static int fsmMkfile(rpmfi fi, const char *dest, rpmfiles files,

        existing) file with content */

     if (numHardlinks<=1) {

 	if (!rc)

-	    rc = expandRegular(fi, dest, psm, nodigest);

+	    rc = expandRegular(fi, fp->fpath, psm, nodigest);

     } else if (rpmfiArchiveHasContent(fi)) {

 	if (!rc)

 	    rc = rpmfiArchiveReadToFilePsm(fi, *firstlinkfile, nodigest, psm);

 	wfd_close(firstlinkfile);

 	*firsthardlink = -1;

     } else {

-	*setmeta = 0;

+	fp->setmeta = 0;

     }

     return rc;

@@ -874,6 +875,7 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	struct filedata_s *fp = &fdata[fx];

 	fp->action = rpmfsGetAction(fs, fx);

 	fp->skip = XFA_SKIPPING(fp->action);

+	fp->setmeta = 1;

 	if (fp->action != FA_TOUCH) {

 	    fp->suffix = S_ISDIR(rpmfiFMode(fi)) ? NULL : tid;

 	} else {

@@ -900,8 +902,6 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	}

         if (!fp->skip) {

-	    int setmeta = 1;

-

 	    /* Directories replacing something need early backup */

 	    if (!fp->suffix) {

 		rc = fsmBackup(fi, fp->action);

@@ -927,8 +927,8 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

             if (S_ISREG(fp->sb.st_mode)) {

 		if (rc == RPMERR_ENOENT) {

-		    rc = fsmMkfile(fi, fp->fpath, files, psm, nodigest,

-				   &setmeta, &firsthardlink, &firstlinkfile);

+		    rc = fsmMkfile(fi, fp, files, psm, nodigest,

+				   &firsthardlink, &firstlinkfile);

 		}

             } else if (S_ISDIR(fp->sb.st_mode)) {

                 if (rc == RPMERR_ENOENT) {

@@ -961,7 +961,7 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 touch:

 	    /* Set permissions, timestamps etc for non-hardlink entries */

-	    if (!rc && setmeta) {

+	    if (!rc && fp->setmeta) {

 		rc = fsmSetmeta(fp->fpath, fi, plugins, fp->action,

 				&fp->sb, nofcaps);

 	    }

From f014fc46325efe92b79841145f8dc0cb40896c64 Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 10:24:22 +0200

Subject: [PATCH 6/9] Clarify file installation temporary suffix rule

We only use a temporary suffix for regular files that we are actually

creating, skipped and touched files should not have it. Add XFA_CREATING()

macro to accomppany XFA_SKIPPING() to easily check whether the file

is being created or something else.

No functional changes but makes the logic clearer.

---

 lib/fsm.c      | 5 +----

 lib/rpmfiles.h | 3 +++

 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 80ca234b1e..554ea712f5 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -876,11 +876,8 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	fp->action = rpmfsGetAction(fs, fx);

 	fp->skip = XFA_SKIPPING(fp->action);

 	fp->setmeta = 1;

-	if (fp->action != FA_TOUCH) {

+	if (XFA_CREATING(fp->action))

 	    fp->suffix = S_ISDIR(rpmfiFMode(fi)) ? NULL : tid;

-	} else {

-	    fp->suffix = NULL;

-	}

 	fp->fpath = fsmFsPath(fi, fp->suffix);

 	/* Remap file perms, owner, and group. */

diff --git a/lib/rpmfiles.h b/lib/rpmfiles.h

index 7ce1712323..e0adbd8aff 100644

--- a/lib/rpmfiles.h

+++ b/lib/rpmfiles.h

@@ -121,6 +121,9 @@ typedef enum rpmFileAction_e {

 #define XFA_SKIPPING(_a)	\

     ((_a) == FA_SKIP || (_a) == FA_SKIPNSTATE || (_a) == FA_SKIPNETSHARED || (_a) == FA_SKIPCOLOR)

+#define XFA_CREATING(_a)	\

+    ((_a) == FA_CREATE || (_a) == FA_BACKUP || (_a) == FA_SAVE || (_a) == FA_ALTNAME)

+

 /**

  * We pass these around as an array with a sentinel.

  */

From fc54439f8a10901cd72028cdbdb924e3e7501624 Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 10:24:22 +0200

Subject: [PATCH 7/9] Clarify file installation temporary suffix rule

We only use a temporary suffix for regular files that we are actually

creating, skipped and touched files should not have it. Add XFA_CREATING()

macro to accomppany XFA_SKIPPING() to easily check whether the file

is being created or something else.

No functional changes but makes the logic clearer.

---

 lib/fsm.c | 4 ++--

 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 554ea712f5..094f5e2bb6 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -876,8 +876,8 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

 	fp->action = rpmfsGetAction(fs, fx);

 	fp->skip = XFA_SKIPPING(fp->action);

 	fp->setmeta = 1;

-	if (XFA_CREATING(fp->action))

-	    fp->suffix = S_ISDIR(rpmfiFMode(fi)) ? NULL : tid;

+	if (XFA_CREATING(fp->action) && !S_ISDIR(rpmfiFMode(fi)))

+	    fp->suffix = tid;

 	fp->fpath = fsmFsPath(fi, fp->suffix);

 	/* Remap file perms, owner, and group. */

From 9294ffa898bc7f1f77ff80c0a3f4f0f70c4dfef2 Mon Sep 17 00:00:00 2001

From: Panu Matilainen <pmatilai@redhat.com>

Date: Wed, 10 Feb 2021 11:25:10 +0200

Subject: [PATCH 8/9] Handle hardlink tracking with a file state pointer

No functional changes, just makes it a little cleaner as firstlink now

points to the actual file data instead of a index number somewhere.

---

 lib/fsm.c | 20 +++++++++-----------

 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/lib/fsm.c b/lib/fsm.c

index 094f5e2bb6..f86383a986 100644

--- a/lib/fsm.c

+++ b/lib/fsm.c

@@ -282,24 +282,22 @@ static int expandRegular(rpmfi fi, const char *dest, rpmpsm psm, int nodigest)

 static int fsmMkfile(rpmfi fi, struct filedata_s *fp, rpmfiles files,

 		     rpmpsm psm, int nodigest,

-		     int * firsthardlink, FD_t *firstlinkfile)

+		     struct filedata_s ** firstlink, FD_t *firstlinkfile)

 {

     int rc = 0;

     int numHardlinks = rpmfiFNlink(fi);

     if (numHardlinks > 1) {

 	/* Create first hardlinked file empty */

-	if (*firsthardlink < 0) {

-	    *firsthardlink = rpmfiFX(fi);

+	if (*firstlink == NULL) {

+	    *firstlink = fp;

 	    rc = wfd_open(firstlinkfile, fp->fpath);

 	} else {

 	    /* Create hard links for others */

-	    char *fn = rpmfilesFN(files, *firsthardlink);

-	    rc = link(fn, fp->fpath);

+	    rc = link((*firstlink)->fpath, fp->fpath);

 	    if (rc < 0) {

 		rc = RPMERR_LINK_FAILED;

 	    }

-	    free(fn);

 	}

     }

     /* Write normal files or fill the last hardlinked (already

@@ -311,7 +309,7 @@ static int fsmMkfile(rpmfi fi, struct filedata_s *fp, rpmfiles files,

 	if (!rc)

 	    rc = rpmfiArchiveReadToFilePsm(fi, *firstlinkfile, nodigest, psm);

 	wfd_close(firstlinkfile);

-	*firsthardlink = -1;

+	*firstlink = NULL;

     } else {

 	fp->setmeta = 0;

     }

@@ -855,10 +853,10 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

     int fc = rpmfilesFC(files);

     int nodigest = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOFILEDIGEST) ? 1 : 0;

     int nofcaps = (rpmtsFlags(ts) & RPMTRANS_FLAG_NOCAPS) ? 1 : 0;

-    int firsthardlink = -1;

     FD_t firstlinkfile = NULL;

     char *tid = NULL;

     struct filedata_s *fdata = xcalloc(fc, sizeof(*fdata));

+    struct filedata_s *firstlink = NULL;

     if (fi == NULL) {

 	rc = RPMERR_BAD_MAGIC;

@@ -925,7 +923,7 @@ int rpmPackageFilesInstall(rpmts ts, rpmte te, rpmfiles files,

             if (S_ISREG(fp->sb.st_mode)) {

 		if (rc == RPMERR_ENOENT) {

 		    rc = fsmMkfile(fi, fp, files, psm, nodigest,

-				   &firsthardlink, &firstlinkfile);