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Annotation of researchv10dc/cmd/netnews/src/uname.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * This routine is compatible with the Unix T/S system call uname,
                      3:  * which figures out the name of the local system.
                      4:  * However, we do it by reading the file /usr/include/whoami.h.
                      5:  * This avoids having to recompile uucp for each site and hence
                      6:  * avoids having to distribute the source to uucp to people who
                      7:  * have only binary licenses.
                      8:  */
                      9: 
                     10: static char *SccsId = "@(#)uname.c     2.4     5/3/83";
                     11: 
                     12: #include "params.h"
                     13: 
                     14: 
                     15: #ifdef UNAME
                     16: # define DONE
                     17: #endif
                     18: 
                     19: #ifdef GHNAME
                     20: uname(uptr)
                     21: struct utsname *uptr;
                     22: {
                     23:        gethostname(uptr->nodename, sizeof (uptr->nodename));
                     24: }
                     25: # define DONE
                     26: #endif
                     27: 
                     28: #ifndef DONE
                     29: #define        HDRFILE "/etc/whoami.h"
                     30: 
                     31: uname(uptr)
                     32: struct utsname *uptr;
                     33: {
                     34:        char buf[BUFSIZ];
                     35:        FILE *fd;
                     36:        
                     37:        fd = fopen(HDRFILE, "r");
                     38:        if (fd == NULL) {
                     39:                fprintf(stderr, "Cannot open %s\n", HDRFILE);
                     40:                exit(1);
                     41:        }
                     42:        
                     43:        for (;;) {      /* each line in the file */
                     44:                if (fgets(buf, sizeof buf, fd) == NULL) {
                     45:                        fprintf(stderr, "no sysname in %s\n", HDRFILE);
                     46:                        fclose(fd);
                     47:                        exit(2);
                     48:                }
                     49:                if (sscanf(buf, "#define sysname \"%[^\"]\"", uptr->nodename) == 1) {
                     50:                        fclose(fd);
                     51:                        return;
                     52:                }
                     53:        }
                     54: }
                     55: #endif

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