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comparison src/hftctl.c @ 380:8626e4521993 r21-2-5

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Import from CVS: tag r21-2-5
author cvs
date Mon, 13 Aug 2007 11:07:10 +0200
parents 376386a54a3c
children
comparison
equal deleted inserted replaced
379:76b7d63099ad 380:8626e4521993
18 /* */ 18 /* */
19 /* Does the following: */ 19 /* Does the following: */
20 /* 1. determines if fildes is pty */ 20 /* 1. determines if fildes is pty */
21 /* does normal ioctl it is not */ 21 /* does normal ioctl it is not */
22 /* 2. places fildes into raw mode */ 22 /* 2. places fildes into raw mode */
23 /* 3. converts ioctl arguments to datastream */ 23 /* 3. converts ioctl arguments to data stream */
24 /* 4. waits for 2 secs for acknowledgement before */ 24 /* 4. waits for 2 secs for acknowledgement before */
25 /* timing out. */ 25 /* timing out. */
26 /* 5. places response in callers buffer ( just like */ 26 /* 5. places response in callers buffer ( just like */
27 /* ioctl. */ 27 /* ioctl. */
28 /* 6. returns fildes to its original mode */ 28 /* 6. returns fildes to its original mode */
257 while ((*p.c != 0x1b) && i) /* scan for next ESC */ 257 while ((*p.c != 0x1b) && i) /* scan for next ESC */
258 { ++p.c; --i; } /* if any */ 258 { ++p.c; --i; } /* if any */
259 259
260 (i ? memcpy (&ack, p.c, i) : 0); /* if any left over, then move */ 260 (i ? memcpy (&ack, p.c, i) : 0); /* if any left over, then move */
261 p.ack = &ack; /* ESC to front of ack struct */ 261 p.ack = &ack; /* ESC to front of ack struct */
262 p.c += i; /* skip over whats been read */ 262 p.c += i; /* skip over what's been read */
263 i = sizeof (ack) - i; /* set whats left to be read */ 263 i = sizeof (ack) - i; /* set what's left to be read */
264 } /***** TRY AGAIN */ 264 } /***** TRY AGAIN */
265 265
266 alarm(0); /* ACK VTD received, reset alrm*/ 266 alarm(0); /* ACK VTD received, reset alrm*/
267 signal (SIGALRM, sav_alrm); /* reset signal */ 267 signal (SIGALRM, sav_alrm); /* reset signal */
268 268