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Annotation of coherent/a/usr/bob/uusrc/modemcap/mgetnum.c, revision 1.1.1.1

1.1       root        1: extern char    *__modemcap;
                      2: 
                      3: mgetnum (id)
                      4: register char  *id;
                      5: {
                      6:        register char   *cp = __modemcap;
                      7: 
                      8:        if (__modemcap == (char *) 0)   /* has mgetent() been called? ...        */
                      9:                return (-1);            /* ... no, can't find number */
                     10: 
                     11:        while (*cp != ':' && *cp != 0)  /* find first entry in cap */
                     12:                cp++;
                     13: 
                     14:        if (*cp == 0)                   /* empty entry???       */
                     15:                return (-1);            /* ... yes, bad modemcap entry */
                     16:        else
                     17:                cp++;                   /* point to first character in next  */
                     18: 
                     19:        while (*cp != 0) {              /* until entry found or end of entry */
                     20:                if (cp[0] == id[0] && cp[1] == id[1]) {/* found entry!!! */
                     21:                        if (cp[2] != '#')/* is it a numeric value??? */
                     22:                                return (-1);/* no, something else       */
                     23: 
                     24:                        return (atoi (&cp[3]));/* return value (just after #) */
                     25:                } 
                     26:                else {          /* not entry, skip this entire entry    */
                     27:                        while (*cp != ':' && *cp != 0)
                     28:                                cp++;   /* search for end of current entry */
                     29: 
                     30:                        if (*cp != 0)
                     31:                                cp++;   /* skip terminating character */
                     32:                }
                     33:        }
                     34:        return (-1);
                     35: }

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