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Modernize: use sigaction() whenever possible. Remove uses of common.

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bsd_signal() may not be defined, and there is really no reason to even
try to use it if sigaction() is avaiable; using sigaction() guarantees
the semantics we really want.

Replace uses of common variables with explicit instantiation and
extern declarations in a header file.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2024-05-29 15:34:57 -07:00
parent 9c0908a778
commit 1f4b33a1f7
9 changed files with 64 additions and 42 deletions
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7
tftp/tftp.c
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@ -48,8 +48,7 @@ extern int maxtimeout;
#define PKTSIZE SEGSIZE+4
char ackbuf[PKTSIZE];
int timeout;
sigjmp_buf toplevel;
sigjmp_buf timeoutbuf;
static sigjmp_buf timeoutbuf;
static void nak(int, const char *);
static int makerequest(int, const char *, struct tftphdr *, const char *);
@ -85,7 +84,7 @@ void tftp_sendfile(int fd, const char *name, const char *mode)
is_request = 1; /* First packet is the actual WRQ */
amount = 0;
bsd_signal(SIGALRM, timer);
tftp_signal(SIGALRM, timer);
do {
if (is_request) {
size = makerequest(WRQ, name, dp, mode) - 4;
@ -191,7 +190,7 @@ void tftp_recvfile(int fd, const char *name, const char *mode)
firsttrip = 1;
amount = 0;
bsd_signal(SIGALRM, timer);
tftp_signal(SIGALRM, timer);
do {
if (firsttrip) {
size = makerequest(RRQ, name, ap, mode);