ref: 94d2ee527af44610a498d6f6adbba8f0b6d76f17
dir: /sys/src/libstdio/fgets.c/
/* * pANS stdio -- fgets */ #include "iolib.h" char *fgets(char *as, int n, FILE *f){ int c; char *s=as; c = EOF; while(n>1 && (c=getc(f))!=EOF){ *s++=c; --n; if(c=='\n') break; } if(c==EOF && s==as || ferror(f)) return NULL; if(n) *s='\0'; return as; }