X-Git-Url: http://git.dolda2000.com/gitweb/?a=blobdiff_plain;f=clients%2Fgui-shell%2Flaunch.c;h=22a82a2b0ba21c979093cee9fcdce738643e6324;hb=f2e278c9547044173473938b4291a88a1a32aa26;hp=604af4af7c533d34d65d27eb08719da115945044;hpb=c4aa9572a98ff7a31733af5228256daae503cbba;p=doldaconnect.git

diff --git a/clients/gui-shell/launch.c b/clients/gui-shell/launch.c
index 604af4a..22a82a2 100644
--- a/clients/gui-shell/launch.c
+++ b/clients/gui-shell/launch.c
@@ -46,26 +46,78 @@ int running(char *pf)
     return(!kill(pid, 0));
 }
 
+int haveprogram(char *name)
+{
+    char buf[1024];
+    char *p, *p2;
+    
+    p = getenv("PATH");
+    while(p != NULL) {
+	if((p2 = strchr(p, ':')) != NULL) {
+	    memcpy(buf, p, p2 - p);
+	    buf[p2 - p] = 0;
+	    p = p2 + 1;
+	} else {
+	    strcpy(buf, p);
+	    p = NULL;
+	}
+	strcat(buf, "/");
+	strcat(buf, name);
+	if(!access(buf, X_OK))
+	    return(1);
+    }
+    return(0);
+}
+
 int main(int argc, char **argv)
 {
+    int c;
     char cf[1024], pf[1024];
     
-    if(getenv("HOME") != NULL)
-	snprintf(cf, sizeof(cf), "%s/.doldacond.conf", getenv("HOME"));
-    else
-	snprintf(cf, sizeof(cf), "%s/.doldacond.conf", getpwuid(getuid())->pw_dir);
-    if(getenv("HOME") != NULL)
-	snprintf(pf, sizeof(pf), "%s/.doldacond.pid", getenv("HOME"));
-    else
-	snprintf(pf, sizeof(pf), "%s/.doldacond.pid", getpwuid(getuid())->pw_dir);
-    if(access(cf, F_OK)) {
-	execlp("dolconf", "dolconf", "-a", NULL);
-	perror("dolconf");
-    } else if(access(pf, F_OK) || !running(pf)) {
-	execlp("doldacond-shell", "doldacond-shell", NULL);
-	perror("doldacond-shell");
+    while((c = getopt(argc, argv, "hV")) != -1) {
+	switch(c) {
+	case 'h':
+	    printf("usage: dolcon-launch [-hV]\n");
+	    printf("\t-h\tDisplay this help message\n");
+	    printf("\t-V\tDisplay version info and exit\n");
+	    printf("\n");
+	    printf("\tIf $HOME/.doldacond.conf does not exist, dolcon-launch will run\n");
+	    printf("\tdolconf. Otherwise, if $HOME/.doldacond.pid does not exist,\n");
+	    printf("\tor does not contain a valid PID, dolcon-launch will run\n");
+	    printf("\tdoldacond-shell. Otherwise, dolcon-launch will run dolcon. All\n");
+	    printf("\tthese programs must be somewhere in $PATH for dolcon-launch to work.\n");
+	    printf("\n");
+	    printf("\tIf doldacond is not in $PATH, only running dolcon is attempted.\n");
+	    exit(0);
+	case 'V':
+	    printf("%s", RELEASEINFO);
+	    exit(0);
+	default:
+	    fprintf(stderr, "usage: dolcon-launch [-h]\n");
+	    exit(1);
+	}
+    }
+    if(haveprogram("doldacond")) {
+	if(getenv("HOME") != NULL)
+	    snprintf(cf, sizeof(cf), "%s/.doldacond.conf", getenv("HOME"));
+	else
+	    snprintf(cf, sizeof(cf), "%s/.doldacond.conf", getpwuid(getuid())->pw_dir);
+	if(getenv("HOME") != NULL)
+	    snprintf(pf, sizeof(pf), "%s/.doldacond.pid", getenv("HOME"));
+	else
+	    snprintf(pf, sizeof(pf), "%s/.doldacond.pid", getpwuid(getuid())->pw_dir);
+	if(access(cf, F_OK)) {
+	    execlp("dolconf", "dolconf", "-a", NULL);
+	    perror("dolconf");
+	} else if(access(pf, F_OK) || !running(pf)) {
+	    execlp("doldacond-shell", "doldacond-shell", NULL);
+	    perror("doldacond-shell");
+	} else {
+	    execlp("dolcon", "dolcon", "-l", NULL);
+	    perror("dolcon");
+	}
     } else {
-	execlp("dolcon", "dolcon", "-l", NULL);
+	execlp("dolcon", "dolcon", NULL);
 	perror("dolcon");
     }
     return(127);