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Annotation of OpenXM/src/kxx/oxlog.c, Revision 1.8

1.8     ! ohara       1: /*$OpenXM: OpenXM/src/kxx/oxlog.c, v 1.7 2000/02/09 12:24:52 takayama Exp $*/
1.1       maekawa     2: #include <stdio.h>
                      3: #include <signal.h>
1.3       takayama    4: #include <string.h>
                      5: #include <stdlib.h>
1.1       maekawa     6: #include <sys/types.h>
                      7: #include <sys/stat.h>
                      8: #include <fcntl.h>
                      9: /* In some distributions of linux you need to include the following file
                     10: #include <linux/sched.h>
                     11: */
                     12: #include <unistd.h>
                     13:
                     14: /* oxlog /usr/X11R6/bin/xterm -icon -e /home/nobuki/kxx/ox
                     15:     0     1                    2     3  4
                     16:          -ox /home/nobuki/kxx/ox_asir
                     17:           5   6
                     18: */
                     19: /* oxlog /home/nobuki/kxx/ox
                     20:     0     1
                     21:          -ox /home/nobuki/kxx/ox_asir  >& /dev/null
                     22:           2     3
                     23: */
1.6       takayama   24: static int Debug_which = 1;
1.8     ! ohara      25:
        !            26: /*which("xterm", getenv("PATH"));*/
        !            27: char *which(char *prog, char *path_env)
        !            28: {
        !            29:     extern int Debug_which ;
        !            30:     char *tok;
        !            31:     char *path;
        !            32:     char delim[] = ":";
        !            33:     char *e = alloca(strlen(path_env)+1);
        !            34:     strcpy(e, path_env);
        !            35:     tok = strtok(e, delim);
        !            36:     if (Debug_which) {
        !            37:         fprintf(stderr, "PATH=%s\n", path_env);
1.1       maekawa    38:     }
1.8     ! ohara      39:     while (tok != NULL) {
        !            40:         char *path = malloc(strlen(tok)+strlen(prog)+2);
        !            41:         sprintf(path, "%s/%s", tok, prog);
        !            42:         if (access(path, X_OK&R_OK) == 0) {
        !            43:             if (Debug_which) {
        !            44:                 fprintf(stderr, "Found: %s\n", path);
        !            45:             }
        !            46:             return path;
        !            47:         }
        !            48:         free(path);
        !            49:         tok = strtok(NULL, delim);
        !            50:     }
        !            51:     return NULL;
1.3       takayama   52: }
                     53:
1.8     ! ohara      54: char *toFullPath(char *s)
        !            55: {
        !            56:     extern int Debug_which;
        !            57:     char *path = "/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin:/usr/openwin/bin:/usr/X/bin";
        !            58:     char *s2;
        !            59:     if (strlen(s) == 0 || strchr(s, '/') != NULL) {
        !            60:         return s;
        !            61:     }
        !            62:     s2 = which(s, getenv("PATH"));
        !            63:     if (s2 == NULL) {
        !            64:         if (Debug_which) {
        !            65:             fprintf(stderr, "Could not find arg[1] in your search path.\n");
        !            66:             fprintf(stderr, "You path is %s.\n", getenv("PATH"));
        !            67:             fprintf(stderr, "Trying to find in the path: %s\n", path);
        !            68:         }
        !            69:         s2 = which(s, path);
        !            70:         /* Why? */
        !            71:     }
        !            72:     return s2;
1.3       takayama   73: }
                     74:
1.8     ! ohara      75: int main(int argc, char *argv[])
1.3       takayama   76: {
1.8     ! ohara      77:     sigset_t sss;
        !            78:     int i;
        !            79:     char *oxname;
        !            80:     /* char *env[2];
        !            81:        env[0] = NULL;*/
        !            82:     sigemptyset(&sss);
        !            83:     sigaddset(&sss, SIGINT);
        !            84:     sigprocmask(SIG_BLOCK, &sss, NULL);
        !            85:     if (argc >= 2) {
        !            86:         oxname = toFullPath(argv[1]);
        !            87:         if (oxname == NULL) {
        !            88:             oxname = "NULL";
        !            89:         } /* Why? */
        !            90:         execv(oxname, argv+1);
        !            91:
        !            92:         fprintf(stderr, "\nError in oxlog: Failed to start the process.\n");
        !            93:         fprintf(stderr, "oxname=%s\n", oxname);
        !            94:         for (i=0; i<argc; i++) {
        !            95:             fprintf(stderr, "argv[%d]=%s ", i, argv[i]);
        !            96:         }
        !            97:         fprintf(stderr, "\n");
        !            98:         exit(20);
        !            99:     }else {
        !           100:         fprintf(stderr, "Error in oxlog: cannot handle argc=%d\n", argc);
        !           101:         fprintf(stderr, "oxname=???\n");
        !           102:         for (i=0; i<argc; i++) {
        !           103:             fprintf(stderr, "argv[%d]=%s ", i, argv[i]);
        !           104:         }
        !           105:         fprintf(stderr, "\n");
        !           106:         fprintf(stderr, "Usage example 1: oxlog /usr/X11R6/bin/xterm -icon -e /home/nobuki/kxx/ox -ox /home/nobuki/kxx/ox_asir\n");
        !           107:         fprintf(stderr, "      example 2: oxlog /home/nobuki/kxx/ox -ox /home/nobuki/kxx/ox_asir >& /dev/null\n");
        !           108:         exit(10);
1.3       takayama  109:     }
1.1       maekawa   110: }