| 10 |
|
|
| 11 |
|
#include "standard.h" |
| 12 |
|
#include <fcntl.h> |
| 13 |
+ |
#include <signal.h> |
| 14 |
|
#include "color.h" |
| 15 |
|
#include "view.h" |
| 16 |
|
#include "resolu.h" |
| 36 |
|
|
| 37 |
|
extern long lseek(), ftell(); |
| 38 |
|
|
| 39 |
+ |
int gotalrm = 0; |
| 40 |
+ |
int onalrm() { gotalrm++; } |
| 41 |
|
|
| 42 |
+ |
|
| 43 |
|
main(argc, argv) |
| 44 |
|
int argc; |
| 45 |
|
char *argv[]; |
| 188 |
|
fprintf(stderr, "%s: out of memory\n", progname); |
| 189 |
|
exit(1); |
| 190 |
|
} |
| 191 |
+ |
signal(SIGALRM, onalrm); |
| 192 |
|
return; |
| 193 |
|
filerr: |
| 194 |
|
fprintf(stderr, "%s: file i/o error\n", outfile); |
| 204 |
|
struct flock fls; |
| 205 |
|
char buf[64]; |
| 206 |
|
|
| 207 |
< |
if (syncfd != -1) { /* using sync file */ |
| 207 |
> |
if (gotalrm) /* someone wants us to quit */ |
| 208 |
> |
return(0); |
| 209 |
> |
if (syncfd != -1) { /* use sync file */ |
| 210 |
|
fls.l_type = F_WRLCK; /* gain exclusive access */ |
| 211 |
|
fls.l_whence = 0; |
| 212 |
|
fls.l_start = 0L; |
| 232 |
|
fcntl(syncfd, F_SETLKW, &fls); |
| 233 |
|
return(1); |
| 234 |
|
} |
| 235 |
< |
if (fgets(buf, sizeof(buf), stdin) == NULL) /* using stdin */ |
| 235 |
> |
if (fgets(buf, sizeof(buf), stdin) == NULL) /* use stdin */ |
| 236 |
|
return(0); |
| 237 |
|
if (sscanf(buf, "%d %d", xp, yp) == 2) |
| 238 |
|
return(1); |
