[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ss/help.c b/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ss/help.c
new file mode 100644
index 0000000..5204401
--- /dev/null
+++ b/ap/app/e2fsprogs/e2fsprogs-1.42.9/lib/ss/help.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright 1987, 1988 by MIT Student Information Processing Board
+ *
+ * Permission to use, copy, modify, and distribute this software and
+ * its documentation for any purpose is hereby granted, provided that
+ * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
+ * advertising or publicity pertaining to distribution of the software
+ * without specific, written prior permission. M.I.T. and the
+ * M.I.T. S.I.P.B. make no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without
+ * express or implied warranty.
+ */
+
+#include "config.h"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#else
+extern int errno;
+#endif
+#include <fcntl.h>
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/file.h>
+#ifdef NEED_SYS_FCNTL_H
+/* just for O_* */
+#include <sys/fcntl.h>
+#endif
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+#include "ss_internal.h"
+
+void ss_help(int argc, char const * const *argv, int sci_idx, pointer info_ptr)
+{
+ char *buffer;
+ char const *request_name;
+ int code;
+ int fd, child;
+ register int idx;
+ register ss_data *info;
+
+ request_name = ss_current_request(sci_idx, &code);
+ if (code != 0) {
+ ss_perror(sci_idx, code, "");
+ return; /* no ss_abort_line, if invalid invocation */
+ }
+ if (argc == 1) {
+ ss_list_requests(argc, argv, sci_idx, info_ptr);
+ return;
+ }
+ else if (argc != 2) {
+ /* should do something better than this */
+ buffer = malloc(80+2*strlen(request_name));
+ if (!buffer) {
+ ss_perror(sci_idx, 0,
+ "couldn't allocate memory to print usage message");
+ return;
+ }
+ sprintf(buffer, "usage:\n\t%s [topic|command]\nor\t%s\n",
+ request_name, request_name);
+ ss_perror(sci_idx, 0, buffer);
+ free(buffer);
+ return;
+ }
+ info = ss_info(sci_idx);
+ if (info->info_dirs == (char **)NULL) {
+ ss_perror(sci_idx, SS_ET_NO_INFO_DIR, (char *)NULL);
+ return;
+ }
+ if (info->info_dirs[0] == (char *)NULL) {
+ ss_perror(sci_idx, SS_ET_NO_INFO_DIR, (char *)NULL);
+ return;
+ }
+ for (fd = -1, idx = 0; info->info_dirs[idx] != (char *)NULL; idx++) {
+ buffer = malloc(strlen (info->info_dirs[idx]) + 1 +
+ strlen (argv[1]) + 6);
+ if (!buffer) {
+ ss_perror(sci_idx, 0,
+ "couldn't allocate memory for help filename");
+ return;
+ }
+ (void) strcpy(buffer, info->info_dirs[idx]);
+ (void) strcat(buffer, "/");
+ (void) strcat(buffer, argv[1]);
+ (void) strcat(buffer, ".info");
+ fd = open(buffer, O_RDONLY);
+ free(buffer);
+ if (fd >= 0)
+ break;
+ }
+ if (fd < 0) {
+#define MSG "No info found for "
+ char *buf = malloc(strlen (MSG) + strlen (argv[1]) + 1);
+ strcpy(buf, MSG);
+ strcat(buf, argv[1]);
+ ss_perror(sci_idx, 0, buf);
+ free(buf);
+ return;
+ }
+ switch (child = fork()) {
+ case -1:
+ ss_perror(sci_idx, errno, "Can't fork for pager");
+ (void) close(fd);
+ return;
+ case 0:
+ (void) dup2(fd, 0); /* put file on stdin */
+ ss_page_stdin();
+ default:
+ (void) close(fd); /* what can we do if it fails? */
+ while (wait(NULL) != child) {
+ /* do nothing if wrong pid */
+ };
+ }
+}
+
+#ifndef HAVE_DIRENT_H
+#include <sys/dir.h>
+#else
+#include <dirent.h>
+#endif
+
+void ss_add_info_dir(int sci_idx, char *info_dir, int *code_ptr)
+{
+ register ss_data *info;
+ DIR *d;
+ int n_dirs;
+ register char **dirs;
+
+ info = ss_info(sci_idx);
+ if (info_dir == NULL || *info_dir == '\0') {
+ *code_ptr = SS_ET_NO_INFO_DIR;
+ return;
+ }
+ if ((d = opendir(info_dir)) == (DIR *)NULL) {
+ *code_ptr = errno;
+ return;
+ }
+ closedir(d);
+ dirs = info->info_dirs;
+ for (n_dirs = 0; dirs[n_dirs] != (char *)NULL; n_dirs++)
+ ; /* get number of non-NULL dir entries */
+ dirs = (char **)realloc((char *)dirs,
+ (unsigned)(n_dirs + 2)*sizeof(char *));
+ if (dirs == (char **)NULL) {
+ info->info_dirs = (char **)NULL;
+ *code_ptr = errno;
+ return;
+ }
+ info->info_dirs = dirs;
+ dirs[n_dirs + 1] = (char *)NULL;
+ dirs[n_dirs] = malloc((unsigned)strlen(info_dir)+1);
+ strcpy(dirs[n_dirs], info_dir);
+ *code_ptr = 0;
+}
+
+void ss_delete_info_dir(int sci_idx, char *info_dir, int *code_ptr)
+{
+ register char **i_d;
+ register char **info_dirs;
+
+ info_dirs = ss_info(sci_idx)->info_dirs;
+ for (i_d = info_dirs; *i_d; i_d++) {
+ if (!strcmp(*i_d, info_dir)) {
+ while (*i_d) {
+ *i_d = *(i_d+1);
+ i_d++;
+ }
+ *code_ptr = 0;
+ return;
+ }
+ }
+ *code_ptr = SS_ET_NO_INFO_DIR;
+}