Merge "show applications" from corydon76 (bug #2291)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3665 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/utils.h

@@ -41,6 +41,7 @@ extern int ast_utils_init(void);
 
 #ifdef LINUX
 #define ast_pthread_create pthread_create
+#define ast_strcasestr strcasestr
 #else
 /* Linux threads have a default 2MB stack size. */
 #ifndef PTHREAD_ATTR_STACKSIZE
@@ -49,4 +50,6 @@ extern int ast_utils_init(void);
 extern int ast_pthread_create(pthread_t *thread, pthread_attr_t *attr, void *(*start_routine)(void *), void *data);
 #endif /* LINUX */
 
+extern char *ast_strcasestr(const char *, const char *);
+
 #endif

pbx.c

@@ -2391,8 +2391,10 @@ static char show_application_help[] =
 "       Describes a particular application.\n";
 
 static char show_applications_help[] =
-"Usage: show applications\n"
-"       List applications which are currently available.\n";
+"Usage: show applications [{like|describing} <text>]\n"
+"       List applications which are currently available.\n"
+"       If 'like', <text> will be a substring of the app name\n"
+"       If 'describing', <text> will be a substring of the description\n";
 
 static char show_dialplan_help[] =
 "Usage: show dialplan [exten@][context]\n"
@@ -2553,6 +2555,7 @@ static int handle_show_switches(int fd, int argc, char *argv[])
 static int handle_show_applications(int fd, int argc, char *argv[])
 {
 	struct ast_app *a;
+	int like=0, describing=0;
 
 	/* try to lock applications list ... */
 	if (ast_mutex_lock(&applock)) {
@@ -2560,26 +2563,54 @@ static int handle_show_applications(int fd, int argc, char *argv[])
 		return -1;
 	}
 
-	/* ... go to first application ... */
-	a = apps; 
-
 	/* ... have we got at least one application (first)? no? */
-	if (!a) {
-		ast_cli(fd, "There is no registered applications\n");
+	if (!apps) {
+		ast_cli(fd, "There are no registered applications\n");
 		ast_mutex_unlock(&applock);
 		return -1;
 	}
 
-	/* ... we have applications ... */
-	ast_cli(fd, "\n    -= Registered Asterisk Applications =-\n");
+	/* show applications like <keyword> */
+	if ((argc == 4) && (!strcmp(argv[2], "like"))) {
+		like = 1;
+	} else if ((argc > 3) && (!strcmp(argv[2], "describing"))) {
+		describing = 1;
+	}
+
+	/* show applications describing <keyword1> [<keyword2>] [...] */
+	if ((!like) && (!describing)) {
+		ast_cli(fd, "    -= Registered Asterisk Applications =-\n");
+	} else {
+		ast_cli(fd, "    -= Matching Asterisk Applications =-\n");
+	}
 
 	/* ... go through all applications ... */
-	while (a) {
+	for (a = apps; a; a = a->next) {
 		/* ... show informations about applications ... */
-		ast_cli(fd,"  %20s: %s\n",
-			a->name,
-			a->synopsis ? a->synopsis : "<Synopsis not available>");
-		a = a->next; 
+		int printapp=0;
+
+		if (like) {
+			if (ast_strcasestr(a->name, argv[3])) {
+				printapp = 1;
+			}
+		} else if (describing) {
+			if (a->description) {
+				/* Match all words on command line */
+				int i;
+				printapp = 1;
+				for (i=3;i<argc;i++) {
+					if (! ast_strcasestr(a->description, argv[i])) {
+						printapp = 0;
+					}
+				}
+			}
+		} else {
+			printapp = 1;
+		}
+
+		if (printapp) {
+			ast_cli(fd,"  %20s: %s\n", a->name, a->synopsis ? a->synopsis : "<Synopsis not available>");
+		}
 	}
 
 	/* ... unlock and return */
@@ -2588,6 +2619,35 @@ static int handle_show_applications(int fd, int argc, char *argv[])
 	return RESULT_SUCCESS;
 }
 
+static char *complete_show_applications(char *line, char *word, int pos, int state)
+{
+	if (pos == 2) {
+		if (ast_strlen_zero(word)) {
+			switch (state) {
+			case 0:
+				return strdup("like");
+			case 1:
+				return strdup("describing");
+			default:
+				return NULL;
+			}
+		} else if (! strncasecmp(word, "like", strlen(word))) {
+			if (state == 0) {
+				return strdup("like");
+			} else {
+				return NULL;
+			}
+		} else if (! strncasecmp(word, "describing", strlen(word))) {
+			if (state == 0) {
+				return strdup("describing");
+			} else {
+				return NULL;
+			}
+		}
+	}
+	return NULL;
+}
+
 /*
  * 'show dialplan' CLI command implementation functions ...
  */
@@ -2824,7 +2884,7 @@ static int handle_show_dialplan(int fd, int argc, char *argv[])
 static struct ast_cli_entry show_applications_cli = 
 	{ { "show", "applications", NULL }, 
 	handle_show_applications, "Shows registered applications",
-	show_applications_help };
+	show_applications_help, complete_show_applications };
 
 static struct ast_cli_entry show_application_cli =
 	{ { "show", "application", NULL }, 

utils.c

@@ -9,6 +9,9 @@
  * the GNU General Public License
  */
 
+#ifdef Linux	/* For strcasestr */
+#define __USE_GNU
+#endif
 #include <ctype.h>
 #include <string.h>
 #include <unistd.h>
@@ -20,6 +23,7 @@
 #include <asterisk/lock.h>
 #include <asterisk/utils.h>
 #include <asterisk/logger.h>
+#include <alloca.h>
 
 static char base64[64];
 static char b2a[256];
@@ -363,3 +367,46 @@ int ast_pthread_create(pthread_t *thread, pthread_attr_t *attr, void *(*start_ro
 	return pthread_create(thread, attr, start_routine, data); /* We're in ast_pthread_create, so it's okay */
 }
 #endif /* ! LINUX */
+
+static char *upper(const char *orig, char *buf, int bufsize)
+{
+	int i;
+	memset(buf, 0, bufsize);
+	for (i=0; i<bufsize - 1; i++) {
+		buf[i] = toupper(orig[i]);
+		if (orig[i] == '\0') {
+			break;
+		}
+	}
+	return buf;
+}
+
+/* Case-insensitive substring matching */
+#ifndef LINUX
+char *ast_strcasestr(const char *haystack, const char *needle)
+{
+	char *u1, *u2;
+	int u1len = strlen(haystack), u2len = strlen(needle);
+
+	u1 = alloca(u1len);
+	u2 = alloca(u2len);
+	if (u1 && u2) {
+		char *offset;
+		if (u2len > u1len) {
+			/* Needle bigger than haystack */
+			return NULL;
+		}
+		offset = strstr(upper(haystack, u1, u1len), upper(needle, u2, u2len));
+		if (offset) {
+			/* Return the offset into the original string */
+			return ((char *)((unsigned int)haystack + (unsigned int)(offset - u1)));
+		} else {
+			return NULL;
+		}
+	} else {
+		ast_log(LOG_ERROR, "Out of memory\n");
+		return NULL;
+	}
+}
+#endif
+