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Annotation of 3BSD/cmd/uucp/shio.c, revision 1.1.1.1

1.1       root        1: #include "uucp.h"
                      2: 
                      3: 
                      4: /*******
                      5:  *     shio(cmd, fi, fo, user) execute shell of command with
                      6:  *     char *cmd, *fi, *fo;    fi and fo as standard input/output
                      7:  *     char *user;             user name
                      8:  *
                      9:  *     return codes:
                     10:  *             0  - ok
                     11:  *             non zero -  failed  -  status from child
                     12:  */
                     13: 
                     14: shio(cmd, fi, fo, user)
                     15: char *cmd, *fi, *fo, *user;
                     16: {
                     17:        int status, f;
                     18:        int uid, pid, ret;
                     19:        char path[MAXFULLNAME];
                     20: 
                     21:        if (fi == NULL)
                     22:                fi = "/dev/null";
                     23:        if (fo == NULL)
                     24:                fo = "/dev/null";
                     25: 
                     26:        DEBUG(3, "shio - %s\n", cmd);
                     27:        if ((pid = fork()) == 0) {
                     28:                close(Ifn);
                     29:                close(Ofn);
                     30:                close(0);
                     31:                f = open(fi, 0);
                     32:                ASSERT(f == 0, "BAD OPEN fileno %d", f);
                     33:                close(1);
                     34:                f = creat(fo, 0666);
                     35:                ASSERT(f == 1, "BAD OPEN fileno %d", f);
                     36:                if (gninfo(user, &uid, path) == 0)
                     37:                        setuid(uid);
                     38:                execl(SHELL, "sh", "-c", cmd, 0);
                     39:                exit(100);
                     40:        }
                     41:        while ((ret = wait(&status)) != pid && ret != -1);
                     42:        DEBUG(3, "status %d\n", status);
                     43:        return(status);
                     44: }

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