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Annotation of researchv10no/cmd/uucp/versys.c, revision 1.1.1.1

1.1       root        1: /*     /sccs/src/cmd/uucp/s.versys.c
                      2:        versys.c        1.1     8/30/84 17:38:20
                      3: */
                      4: #include "uucp.h"
                      5: VERSION(@(#)versys.c   1.1);
                      6: 
                      7: /*
                      8:  * verify system name
                      9:  * if abbr is nonzero, allow the name to be truncated
                     10:  * for compatibility with old uucps
                     11:  * input:
                     12:  *     name    -> system name
                     13:  * returns:  
                     14:  *     0       -> success
                     15:  *     FAIL    -> failure
                     16:  */
                     17: 
                     18: #define        OLDLEN  7       /* max length of old uucp names */
                     19: 
                     20: versys(name, abbr)
                     21: char *name;
                     22: int abbr;
                     23: {
                     24:        register FILE *fp;
                     25:        register char *iptr;
                     26:        char line[300];
                     27:        FILE *sysopen();
                     28: 
                     29:        if (EQUALS(name, Myname))
                     30:                return(0);
                     31: 
                     32: #ifndef MANYSYS        
                     33: #define        SYSCLOSE        fclose
                     34:        fp = fopen(SYSFILE, "r");
                     35: #else
                     36: #define        SYSCLOSE        pclose
                     37:        fp = sysopen(name);
                     38: #endif
                     39:        if (fp == NULL)
                     40:                return(FAIL);
                     41:        
                     42:        while (fgets(line, sizeof(line) ,fp) != NULL) {
                     43:                if((line[0] == '#') || (line[0] == ' ') || (line[0] == '\t') || 
                     44:                        (line[0] == '\n'))
                     45:                        continue;
                     46: 
                     47:                if ((iptr=strpbrk(line, " \t")) == NULL)
                     48:                    continue;   /* why? */
                     49:                *iptr = '\0';
                     50:                if (EQUALS(name, line)) {
                     51:                        (void) SYSCLOSE(fp);
                     52:                        return (0);
                     53:                }
                     54:                if (abbr && strlen(name) == OLDLEN && strncmp(name, line, OLDLEN) == SAME) {
                     55:                        (void) fclose(fp);
                     56:                        return(0);
                     57:                }
                     58:        }
                     59:        SYSCLOSE(fp);
                     60:        return(FAIL);
                     61: }

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