1*2001Swnj /* @(#)fgets.c 4.1 (Berkeley) 12/21/80 */ 2*2001Swnj #include <stdio.h> 3*2001Swnj 4*2001Swnj char * 5*2001Swnj fgets(s, n, iop) 6*2001Swnj char *s; 7*2001Swnj register FILE *iop; 8*2001Swnj { 9*2001Swnj register c; 10*2001Swnj register char *cs; 11*2001Swnj 12*2001Swnj cs = s; 13*2001Swnj while (--n>0 && (c = getc(iop))>=0) { 14*2001Swnj *cs++ = c; 15*2001Swnj if (c=='\n') 16*2001Swnj break; 17*2001Swnj } 18*2001Swnj if (c<0 && cs==s) 19*2001Swnj return(NULL); 20*2001Swnj *cs++ = '\0'; 21*2001Swnj return(s); 22*2001Swnj } 23