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-rw-r--r--utils/run-parts.c425
1 files changed, 425 insertions, 0 deletions
diff --git a/utils/run-parts.c b/utils/run-parts.c
new file mode 100644
index 0000000..5f29a9f
--- /dev/null
+++ b/utils/run-parts.c
@@ -0,0 +1,425 @@
+/* run-parts: run a bunch of scripts in a directory
+ *
+ * Debian run-parts program
+ * Copyright (C) 1996 Jeff Noxon <jeff@router.patch.net>,
+ * Copyright (C) 1996-1999 Guy Maor <maor@debian.org>
+ *
+ * This is free software; see the GNU General Public License version 2
+ * or later for copying conditions. There is NO warranty.
+ *
+ * Based on run-parts.pl version 0.2, Copyright (C) 1994 Ian Jackson.
+ *
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <signal.h>
+#include <sys/time.h>
+
+#define VERSION "1.15"
+
+int test_mode = 0;
+int verbose_mode = 0;
+int report_mode = 0;
+int exitstatus = 0;
+
+int argcount = 0, argsize = 0;
+char **args = 0;
+
+void error (char *format,...)
+{
+ va_list ap;
+
+ fprintf (stderr, "run-parts: ");
+
+ va_start (ap, format);
+ vfprintf (stderr, format, ap);
+ va_end (ap);
+
+ fprintf (stderr, "\n");
+}
+
+
+static void version (void)
+{
+ fprintf (stderr, "Mandriva Linux run-parts program, version " VERSION "\n"
+ "Copyright (C) 1994 Ian Jackson, Copyright (C) 1996 Jeff Noxon.\n"
+ "Copyright (C) 1996,1997,1998,1999 Guy Maor\n"
+ "This is free software; see the GNU General Public License version 2\n"
+ "or later for copying conditions. There is NO warranty.\n"
+ );
+ exit (0);
+}
+
+
+static void usage (void)
+{
+ fprintf (stderr, "Usage: run-parts [OPTION]... DIRECTORY\n"
+ " --test print script names which would run, but don't run them.\n"
+ " --verbose print script names before running them.\n"
+ " --report print script names if they produce output.\n"
+ " --umask=UMASK sets umask to UMASK (octal), default is 022.\n"
+ " --arg=ARGUMENT pass ARGUMENT to scripts, use once for each argument.\n"
+ " --version output version information and exit.\n"
+ " --help display this help and exit.\n"
+ );
+ exit(0);
+}
+
+
+/* The octal conversion in libc is not foolproof; it will take the 8 and 9
+ * digits under some circumstances. We'll just have to live with it.
+ */
+static void set_umask (void)
+{
+ int mask, result;
+
+ result = sscanf (optarg, "%o", &mask);
+ if ((result != 1) || (mask > 07777) || (mask < 0)) {
+ error ("bad umask value");
+ exit (1);
+ }
+
+ umask (mask);
+}
+
+/* Add an argument to the commands that we will call. Called once for
+ every argument. */
+void add_argument (char *newarg)
+{
+ if (argcount+1 >= argsize) {
+ argsize = argsize ? argsize*2 : 4;
+ args = realloc(args, argsize * (sizeof(char*)));
+ if (!args) {
+ error("failed to reallocate memory for arguments: %s", strerror(errno));
+ exit(1);
+ }
+ }
+ args[argcount++] = newarg;
+ args[argcount] = 0;
+}
+
+/* True or false? Is this a valid filename (upper/lower alpha, digits,
+ * underscores, and hyphens only?)
+ */
+int valid_name (const struct dirent *d)
+{
+ char *c = d->d_name;
+ int filenamelen;
+
+ filenamelen=strlen(c);
+ if( (strncmp(".rpmsave",&(c[filenamelen-8]),9)==0)
+ || (strncmp(".rpmorig",&(c[filenamelen-8]),9)==0)
+ || (strncmp(".rpmnew",&(c[filenamelen-7]),8)==0) )
+ return 0;
+
+ while (*c) {
+ if (!isalnum(*c) && *c!='_' && *c!='-' && *c!='.')
+ return 0;
+ ++c;
+ }
+ return 1;
+}
+
+
+void set_fl (int fd, int flags)
+{
+ int val;
+ if ((val = fcntl(fd, F_GETFL, 0)) < 0) {
+ error("fcntl F_GETFL: %s", strerror(errno));
+ exit(1);
+ }
+ val |= flags;
+ if (fcntl(fd, F_SETFL, val) < 0) {
+ error("fcntl F_SETFL: %s", strerror(errno));
+ exit(1);
+ }
+}
+
+
+/* We have to abort the select() call in run_part when we receive a
+ * SIGCHLD signal. We can't simply ignore it, so we do nothing.
+ */
+void catch_sigchld(int sig) {
+}
+
+
+/* Execute a file */
+void run_part (char *progname)
+{
+ int result;
+ int pid;
+ int pout[2], perr[2];
+
+ if (report_mode && (pipe(pout) || pipe(perr))) {
+ error("pipe: %s", strerror(errno));
+ exit(1);
+ }
+ if ((pid=fork()) < 0) {
+ error("failed to fork: %s", strerror(errno));
+ exit(1);
+ }
+ else if (!pid) {
+ if (report_mode) {
+ if (dup2(pout[1], STDOUT_FILENO) == -1 ||
+ dup2(perr[1], STDERR_FILENO) == -1) {
+ error("dup2: %s", strerror(errno));
+ exit(1);
+ }
+ close(pout[0]);
+ close(perr[0]);
+ close(pout[1]);
+ close(perr[1]);
+ }
+ args[0] = progname;
+ execv (progname, args);
+ /* Try with sh */
+ if (verbose_mode) fprintf(stderr, "run-parts: executing %s with /bin/sh\n", progname);
+ execl("/bin/sh", "/bin/sh", "-c", progname, args, (char *)0);
+ error ("failed to exec %s: %s", progname, strerror (errno));
+ exit (1);
+ }
+
+ if (report_mode) {
+ fd_set set;
+ int max, r, w, printflag, errno_select;
+ ssize_t c;
+ char buf[4096];
+ struct timeval zerotime, *timeout;
+ struct sigaction sa, sold;
+
+ close(pout[1]);
+ close(perr[1]);
+ set_fl(pout[0], O_NONBLOCK);
+ set_fl(perr[0], O_NONBLOCK);
+ max = pout[0] > perr[0] ? pout[0]+1 : perr[0]+1;
+ printflag = 0;
+ zerotime.tv_usec = 0;
+ zerotime.tv_sec = 0;
+ timeout = NULL;
+ sigaction(SIGCHLD, NULL, &sa);
+ sa.sa_handler = catch_sigchld;
+
+ for (;;) {
+ FD_ZERO(&set);
+ if (pout[0] >= 0) FD_SET(pout[0], &set);
+ if (perr[0] >= 0) FD_SET(perr[0], &set);
+
+ /* select() call may be interrupted by SIGCHLD */
+ sigaction(SIGCHLD, &sa, &sold);
+ r = select(max, &set, 0, 0, timeout);
+ errno_select = errno;
+ sigaction(SIGCHLD, &sold, NULL);
+
+ if (r > 0) {
+ if (pout[0] >= 0 && FD_ISSET(pout[0], &set)) {
+ c = read(pout[0], buf, sizeof(buf));
+ if (c > 0) {
+ if (!printflag) {
+ printf("%s:\n", progname);
+ fflush(stdout);
+ printflag = 1;
+ }
+ write(STDOUT_FILENO, buf, c);
+ }
+ else if (c == 0) {
+ close(pout[0]);
+ pout[0] = -1;
+ }
+ }
+ if (perr[0] >= 0 && FD_ISSET(perr[0], &set)) {
+ c = read(perr[0], buf, sizeof(buf));
+ if (c > 0) {
+ if (!printflag) {
+ fprintf(stderr, "%s:\n", progname);
+ fflush(stderr);
+ printflag = 1;
+ }
+ write(STDERR_FILENO, buf, c);
+ }
+ else if (c == 0) {
+ close(perr[0]);
+ perr[0] = -1;
+ }
+ }
+ }
+ else if (r < 0) {
+ /* select() was interrupted so check if we got a SIGCHLD
+ * probably from our child (check this later).
+ */
+ if (errno_select != EINTR) {
+ error("select: %s", strerror(errno_select));
+ exit(1);
+ }
+ }
+ else if (timeout == NULL) { /* should never happen */
+ error("internal error: select() returned 0 !");
+ exit(1);
+ }
+ if (timeout == NULL) {
+ w = waitpid(pid, &result, WNOHANG);
+ if (w > 0) {
+ /* Our child has died so prepare to flush the pipes */
+ timeout = &zerotime;
+ }
+ }
+ else {
+ if (pout[0]) close(pout[0]);
+ if (perr[0]) close(perr[0]);
+ break;
+ }
+ }
+ }
+ else {
+ waitpid(pid, &result, 0);
+ }
+
+ if (WIFEXITED (result) && WEXITSTATUS(result)) {
+ error ("%s exited with return code %d", progname, WEXITSTATUS(result));
+ exitstatus = 1;
+ }
+ else if (WIFSIGNALED (result)) {
+ error ("%s exited because of uncaught signal %d", progname,
+ WTERMSIG(result));
+ exitstatus = 1;
+ }
+}
+
+
+/* Find the parts to run & call run_part() */
+void run_parts (char *dirname)
+{
+ struct dirent **namelist;
+ char *filename;
+ size_t filename_length, dirname_length;
+ int entries, i, result;
+ struct stat st;
+
+ /* dirname + "/" */
+ dirname_length = strlen(dirname) + 1;
+ /* dirname + "/" + ".." + "\0" (This will save one realloc.) */
+ filename_length = dirname_length + 2 + 1;
+ if (! (filename = malloc(filename_length))) {
+ error ("failed to allocate memory for path: %s", strerror(errno));
+ exit (1);
+ }
+ strcpy (filename, dirname);
+ strcat (filename, "/");
+
+ /* scandir() isn't POSIX, but it makes things easy. */
+ entries = scandir (dirname, &namelist, valid_name, alphasort);
+ if (entries < 0) {
+ error ("failed to open directory %s: %s", dirname, strerror (errno));
+ exit (1);
+ }
+
+ for (i = 0; i < entries; i++) {
+ if (filename_length < dirname_length + strlen(namelist[i]->d_name) + 1) {
+ filename_length = dirname_length + strlen(namelist[i]->d_name) + 1;
+ if (!(filename = realloc(filename, filename_length))) {
+ error ("failed to reallocate memory for path: %s", strerror(errno));
+ exit (1);
+ }
+ }
+ strcpy (filename + dirname_length, namelist[i]->d_name);
+
+ strcpy (filename, dirname);
+ strcat (filename, "/");
+ strcat (filename, namelist[i]->d_name);
+
+ result = stat (filename, &st);
+ if (result < 0) {
+ error ("failed to stat component %s: %s", filename,
+ strerror (errno));
+ exit (1);
+ }
+ if (S_ISREG(st.st_mode) && !access (filename, X_OK)) {
+ if (test_mode)
+ printf ("run-parts would run %s\n", filename);
+ else {
+ if (verbose_mode)
+ fprintf(stderr, "run-parts: executing %s\n", filename);
+ run_part (filename);
+ }
+ }
+ else if (!S_ISDIR(st.st_mode)) {
+ printf ("run-parts: component %s is not an executable plain file\n",
+ filename);
+ exitstatus = 1;
+ }
+
+ free (namelist[i]);
+ }
+ free (namelist);
+ free (filename);
+}
+
+/* Process options */
+int main (int argc, char *argv[])
+{
+ umask (022);
+ add_argument(0);
+
+ for (;;) {
+ int c;
+ int option_index = 0;
+
+ static struct option long_options[] = {
+ {"test", 0, &test_mode, 1},
+ {"verbose", 0, &verbose_mode, 1},
+ {"report", 0, &report_mode, 1},
+ {"umask", 1, 0, 'u'},
+ {"arg", 1, 0, 'a'},
+ {"help", 0, 0, 'h'},
+ {"version", 0, 0, 'v'},
+ {0, 0, 0, 0}
+ };
+
+ opterr = 0;
+ c = getopt_long (argc, argv, "", long_options, &option_index);
+ if (c == EOF)
+ break;
+ switch (c) {
+ case 0:
+ break;
+ case 'u':
+ set_umask ();
+ break;
+ case 'a':
+ add_argument (optarg);
+ break;
+ case 'h':
+ usage();
+ break;
+ case 'v':
+ version ();
+ break;
+ default:
+ error("unrecognized option `%s'", argv[optind-1]);
+ fprintf(stderr, "Try `run-parts --help' for more information.\n");
+ exit (1);
+ }
+ }
+
+ /* We require exactly one argument: the directory name */
+ if (optind != (argc - 1)) {
+ error("missing operand");
+ fprintf(stderr, "Try run-parts --help' for more information.\n");
+ exit (1);
+ }
+
+ run_parts (argv[optind]);
+
+ return exitstatus;
+}
generated by cgit v1.2.1 (git 2.21.0) at 2024-05-04 05:24:38 +0000