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-rw-r--r--byhandhook.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/byhandhook.c b/byhandhook.c
new file mode 100644
index 0000000..c4f18fd
--- /dev/null
+++ b/byhandhook.c
@@ -0,0 +1,241 @@
+/* This file is part of "reprepro"
+ * Copyright (C) 2010 Bernhard R. Link
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301 USA
+ */
+#include <config.h>
+
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "error.h"
+#include "filecntl.h"
+#include "names.h"
+#include "configparser.h"
+#include "globmatch.h"
+#include "hooks.h"
+#include "byhandhook.h"
+
+struct byhandhook {
+ /*@null@*/struct byhandhook *next;
+ char *sectionglob;
+ char *priorityglob;
+ char *filenameglob;
+ char *script;
+};
+
+void byhandhooks_free(struct byhandhook *l) {
+ while (l != NULL) {
+ /*@null@*/struct byhandhook *n = l->next;
+
+ free(l->sectionglob);
+ free(l->priorityglob);
+ free(l->filenameglob);
+ free(l->script);
+ free(l);
+ l = n;
+ }
+}
+
+retvalue byhandhooks_parse(struct configiterator *iter, struct byhandhook **hooks_p) {
+ retvalue r;
+ char *v;
+ struct byhandhook *h, *hooks = NULL, **nexthook_p = &hooks;
+
+ r = config_getwordinline(iter, &v);
+ if (RET_IS_OK(r)) {
+ fprintf(stderr,
+"Error parsing %s, line %u, column %u: unexpected input '%s'"
+" (each hook must be in its own line)!\n",
+ config_filename(iter),
+ config_markerline(iter),
+ config_markercolumn(iter),
+ v);
+ free(v);
+ r = RET_ERROR;
+ }
+ if (RET_WAS_ERROR(r))
+ return r;
+ while (config_nextline(iter)) {
+ r = config_getwordinline(iter, &v);
+ if (r == RET_NOTHING)
+ continue;
+ if (RET_WAS_ERROR(r))
+ break;
+ h = zNEW(struct byhandhook);
+ if (FAILEDTOALLOC(h)) {
+ r = RET_ERROR_OOM;
+ break;
+ }
+ *nexthook_p = h;
+ nexthook_p = &h->next;
+ h->sectionglob = v;
+ r = config_getwordinline(iter, &v);
+ if (r == RET_NOTHING) {
+ fprintf(stderr,
+"Error parsing %s, line %u, column %u: each byhand hooks needs 4 arguments, found only 1!\n",
+ config_filename(iter),
+ config_markerline(iter),
+ config_markercolumn(iter));
+ r = RET_ERROR;
+ }
+ if (RET_WAS_ERROR(r))
+ break;
+ h->priorityglob = v;
+ r = config_getwordinline(iter, &v);
+ if (r == RET_NOTHING) {
+ fprintf(stderr,
+"Error parsing %s, line %u, column %u: each byhand hooks needs 4 arguments, found only 2!\n",
+ config_filename(iter),
+ config_markerline(iter),
+ config_markercolumn(iter));
+ r = RET_ERROR;
+ }
+ if (RET_WAS_ERROR(r))
+ break;
+ h->filenameglob = v;
+ r = config_getwordinline(iter, &v);
+ if (r == RET_NOTHING) {
+ fprintf(stderr,
+"Error parsing %s, line %u, column %u: each byhand hooks needs 4 arguments, found only 2!\n",
+ config_filename(iter),
+ config_markerline(iter),
+ config_markercolumn(iter));
+ r = RET_ERROR;
+ }
+ if (RET_WAS_ERROR(r))
+ break;
+ assert (v != NULL && v[0] != '\0'); \
+ h->script = configfile_expandname(v, v);
+ if (FAILEDTOALLOC(h->script)) {
+ r = RET_ERROR_OOM;
+ break;
+ }
+ r = config_getwordinline(iter, &v);
+ if (RET_IS_OK(r)) {
+ fprintf(stderr,
+"Error parsing %s, line %u, column %u: each byhand hooks needs exactly 4 arguments, but there are more (first unexpected: '%s'!\n",
+ config_filename(iter),
+ config_markerline(iter),
+ config_markercolumn(iter), v);
+ free(v);
+ r = RET_ERROR;
+ }
+ if (RET_WAS_ERROR(r))
+ break;
+ }
+ if (RET_WAS_ERROR(r)) {
+ byhandhooks_free(hooks);
+ return r;
+ }
+ *hooks_p = hooks;
+ return RET_OK;
+}
+
+bool byhandhooks_matched(const struct byhandhook *list, const struct byhandhook **touse, const char *section, const char *priority, const char *filename) {
+ const struct byhandhook *h;
+
+ /* for each file the first matching hook is called
+ * it might later be extended to allow multiple with some keywords */
+ if (*touse != NULL)
+ /* if ((*touse)->nonexclusive) list = (*touse)->next ; else */
+ return false;
+ for (h = list ; h != NULL ; h = h->next) {
+ if (!globmatch(section, h->sectionglob))
+ continue;
+ if (!globmatch(priority, h->priorityglob))
+ continue;
+ if (!globmatch(filename, h->filenameglob))
+ continue;
+ *touse = h;
+ return true;
+ }
+ return false;
+}
+
+retvalue byhandhook_call(const struct byhandhook *h, const char *codename, const char *section, const char *priority, const char *name, const char *fullfilename) {
+ pid_t child;
+
+ child = fork();
+ if (child == 0) {
+ /* Try to close all open fd but 0,1,2 */
+ closefrom(3);
+ sethookenvironment(causingfile, NULL, NULL, NULL);
+ (void)execl(h->script, h->script, codename,
+ section, priority, name,
+ fullfilename, (char*)NULL);
+ {
+ int e = errno;
+ fprintf(stderr, "Error %d executing '%s': %s\n",
+ e, h->script,
+ strerror(e));
+ }
+ _exit(255);
+ }
+ if (child < 0) {
+ int e = errno;
+ fprintf(stderr, "Error %d forking: %s!\n", e, strerror(e));
+ return RET_ERRNO(e);
+ }
+ while (true) {
+ int status;
+ pid_t pid;
+
+ pid = waitpid(child, &status, 0);
+ if (pid == child) {
+ if (WIFEXITED(status)) {
+ if (WEXITSTATUS(status) == 0) {
+ return RET_OK;
+ }
+ fprintf(stderr,
+"Byhandhook '%s' '%s' '%s' '%s' '%s' '%s' failed with exit code %d!\n",
+ h->script, codename,
+ section, priority, name,
+ fullfilename,
+ (int)(WEXITSTATUS(status)));
+ } else if (WIFSIGNALED(status)) {
+ fprintf(stderr,
+"Byhandhook '%s' '%s' '%s' '%s' '%s' '%s' killed by signal %d!\n",
+ h->script, codename,
+ section, priority, name,
+ fullfilename,
+ (int)(WTERMSIG(status)));
+ } else {
+ fprintf(stderr,
+"Byhandhook '%s' '%s' '%s' '%s' '%s' '%s' failed!\n",
+ h->script, codename,
+ section, priority, name,
+ fullfilename);
+ }
+ return RET_ERROR;
+ } else if (pid == (pid_t)-1) {
+ int e = errno;
+
+ if (e == EINTR)
+ continue;
+ fprintf(stderr,
+"Error %d calling waitpid on byhandhook child: %s\n",
+ e, strerror(e));
+ return RET_ERRNO(e);
+ }
+ }
+ /* NOT REACHED */
+}
+
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