diff options
Diffstat (limited to 'lib/libI77/due.c')
| -rw-r--r-- | lib/libI77/due.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/libI77/due.c b/lib/libI77/due.c index ff9ce55..670b0f1 100644 --- a/lib/libI77/due.c +++ b/lib/libI77/due.c @@ -1,7 +1,6 @@ #include "f2c.h" #include "fio.h" -int #ifdef KR_headers c_due(a) cilist *a; #else @@ -20,7 +19,9 @@ c_due(cilist *a) if(f__curunit->ufmt) err(a->cierr,102,"cdue") if(!f__curunit->useek) err(a->cierr,104,"cdue") if(f__curunit->ufd==NULL) err(a->cierr,114,"cdue") - (void) fseek(f__cf,(long)(a->cirec-1)*f__curunit->url,SEEK_SET); + if(a->cirec <= 0) + err(a->cierr,130,"due") + fseek(f__cf,(long)(a->cirec-1)*f__curunit->url,SEEK_SET); f__curunit->uend = 0; return(0); } @@ -31,8 +32,8 @@ integer s_rdue(cilist *a) #endif { int n; - if( (n=c_due(a)) ) return(n); f__reading=1; + if(n=c_due(a)) return(n); if(f__curunit->uwrt && f__nowreading(f__curunit)) err(a->cierr,errno,"read start"); return(0); @@ -44,8 +45,8 @@ integer s_wdue(cilist *a) #endif { int n; - if( (n=c_due(a)) ) return(n); f__reading=0; + if(n=c_due(a)) return(n); if(f__curunit->uwrt != 1 && f__nowwriting(f__curunit)) err(a->cierr,errno,"write start"); return(0); @@ -54,7 +55,7 @@ integer e_rdue(Void) { if(f__curunit->url==1 || f__recpos==f__curunit->url) return(0); - (void) fseek(f__cf,(long)(f__curunit->url-f__recpos),SEEK_CUR); + fseek(f__cf,(long)(f__curunit->url-f__recpos),SEEK_CUR); if(ftell(f__cf)%f__curunit->url) err(f__elist->cierr,200,"syserr"); return(0); |
