Commit | Line | Data |
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f7a57385 FT |
1 | /* |
2 | * Dolda Connect - Modular multiuser Direct Connect-style client | |
3 | * Copyright (C) 2007 Fredrik Tolf <fredrik@dolda2000.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | */ | |
19 | ||
20 | #include <stdlib.h> | |
21 | #include <stdio.h> | |
22 | #include <unistd.h> | |
23 | #include <string.h> | |
24 | #include <pwd.h> | |
25 | #include <libintl.h> | |
ec985ce4 | 26 | #include <signal.h> |
f7a57385 FT |
27 | |
28 | #ifdef HAVE_CONFIG_H | |
29 | #include <config.h> | |
30 | #endif | |
31 | ||
ec985ce4 FT |
32 | int running(char *pf) |
33 | { | |
34 | FILE *pfs; | |
35 | char buf[1024]; | |
36 | int pid; | |
37 | ||
38 | if((pfs = fopen(pf, "r")) == NULL) { | |
39 | perror(pf); | |
40 | return(0); | |
41 | } | |
42 | fgets(buf, sizeof(buf), pfs); | |
43 | fclose(pfs); | |
44 | if((pid = atoi(buf)) == 0) | |
45 | return(0); | |
46 | return(!kill(pid, 0)); | |
47 | } | |
48 | ||
f2e278c9 FT |
49 | int haveprogram(char *name) |
50 | { | |
51 | char buf[1024]; | |
52 | char *p, *p2; | |
53 | ||
54 | p = getenv("PATH"); | |
55 | while(p != NULL) { | |
56 | if((p2 = strchr(p, ':')) != NULL) { | |
57 | memcpy(buf, p, p2 - p); | |
58 | buf[p2 - p] = 0; | |
59 | p = p2 + 1; | |
60 | } else { | |
61 | strcpy(buf, p); | |
62 | p = NULL; | |
63 | } | |
64 | strcat(buf, "/"); | |
65 | strcat(buf, name); | |
66 | if(!access(buf, X_OK)) | |
67 | return(1); | |
68 | } | |
69 | return(0); | |
70 | } | |
71 | ||
f7a57385 FT |
72 | int main(int argc, char **argv) |
73 | { | |
fd77ba2e | 74 | int c; |
ec985ce4 FT |
75 | char cf[1024], pf[1024]; |
76 | ||
8af979f3 | 77 | while((c = getopt(argc, argv, "hV")) != -1) { |
fd77ba2e FT |
78 | switch(c) { |
79 | case 'h': | |
8af979f3 | 80 | printf("usage: dolcon-launch [-hV]\n"); |
fd77ba2e | 81 | printf("\t-h\tDisplay this help message\n"); |
8af979f3 | 82 | printf("\t-V\tDisplay version info and exit\n"); |
fd77ba2e FT |
83 | printf("\n"); |
84 | printf("\tIf $HOME/.doldacond.conf does not exist, dolcon-launch will run\n"); | |
85 | printf("\tdolconf. Otherwise, if $HOME/.doldacond.pid does not exist,\n"); | |
86 | printf("\tor does not contain a valid PID, dolcon-launch will run\n"); | |
87 | printf("\tdoldacond-shell. Otherwise, dolcon-launch will run dolcon. All\n"); | |
88 | printf("\tthese programs must be somewhere in $PATH for dolcon-launch to work.\n"); | |
f2e278c9 FT |
89 | printf("\n"); |
90 | printf("\tIf doldacond is not in $PATH, only running dolcon is attempted.\n"); | |
fd77ba2e | 91 | exit(0); |
8af979f3 FT |
92 | case 'V': |
93 | printf("%s", RELEASEINFO); | |
94 | exit(0); | |
fd77ba2e FT |
95 | default: |
96 | fprintf(stderr, "usage: dolcon-launch [-h]\n"); | |
97 | exit(1); | |
98 | } | |
99 | } | |
f2e278c9 FT |
100 | if(haveprogram("doldacond")) { |
101 | if(getenv("HOME") != NULL) | |
102 | snprintf(cf, sizeof(cf), "%s/.doldacond.conf", getenv("HOME")); | |
103 | else | |
104 | snprintf(cf, sizeof(cf), "%s/.doldacond.conf", getpwuid(getuid())->pw_dir); | |
105 | if(getenv("HOME") != NULL) | |
106 | snprintf(pf, sizeof(pf), "%s/.doldacond.pid", getenv("HOME")); | |
107 | else | |
108 | snprintf(pf, sizeof(pf), "%s/.doldacond.pid", getpwuid(getuid())->pw_dir); | |
109 | if(access(cf, F_OK)) { | |
110 | execlp("dolconf", "dolconf", "-a", NULL); | |
111 | perror("dolconf"); | |
112 | } else if(access(pf, F_OK) || !running(pf)) { | |
113 | execlp("doldacond-shell", "doldacond-shell", NULL); | |
114 | perror("doldacond-shell"); | |
115 | } else { | |
116 | execlp("dolcon", "dolcon", "-l", NULL); | |
117 | perror("dolcon"); | |
118 | } | |
ec985ce4 | 119 | } else { |
f2e278c9 | 120 | execlp("dolcon", "dolcon", NULL); |
ec985ce4 FT |
121 | perror("dolcon"); |
122 | } | |
123 | return(127); | |
f7a57385 | 124 | } |