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(main) [HAVE_SYSVIPC]: Make msgp->mtext longer if necessary.

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On HPUX, error if it's more than 512 chars.
This commit is contained in:
Richard M. Stallman 1994-03-05 21:42:57 +00:00
parent 0bc439a076
commit 1518a9eb45
1 changed files with 32 additions and 4 deletions
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36
lib-src/emacsclient.c
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@ -177,20 +177,25 @@ main (argc, argv)
#include <sys/msg.h>
#include <stdio.h>
char *getwd (), *getcwd (), *getenv ();
main (argc, argv)
int argc;
char **argv;
{
int s;
key_t key;
struct msgbuf * msgp =
(struct msgbuf *) malloc (sizeof *msgp + BUFSIZ);
/* Size of text allocated in MSGP. */
int size_allocated = BUFSIZ;
/* Amount of text used in MSGP. */
int used;
struct msgbuf *msgp
= (struct msgbuf *) malloc (sizeof (struct msgbuf) + size_allocated);
struct msqid_ds * msg_st;
char *homedir, buf[BUFSIZ];
char gwdirb[BUFSIZ];
char *cwd;
char *temp;
char *getwd (), *getcwd (), *getenv ();
if (argc < 2)
{
@ -241,17 +246,33 @@ main (argc, argv)
}
msgp->mtext[0] = 0;
used = 0;
argc--; argv++;
while (argc)
{
int need_cwd = 0;
if (*argv[0] == '+')
{
char *p = argv[0] + 1;
while (*p >= '0' && *p <= '9') p++;
if (*p != 0)
strcat (msgp->mtext, cwd);
need_cwd = 1;
}
else if (*argv[0] != '/')
need_cwd = 1;
if (need_cwd)
used += strlen (cwd);
used += strlen (argv[0]) + 1;
while (used + 2 > size_allocated)
{
size_allocated *= 2;
msgp = (struct msgbuf *) realloc (msgp,
(sizeof (struct msgbuf)
+ size_allocated));
}
if (need_cwd)
strcat (msgp->mtext, cwd);
strcat (msgp->mtext, argv[0]);
@ -259,6 +280,13 @@ main (argc, argv)
argv++; argc--;
}
strcat (msgp->mtext, "\n");
#ifdef HPUX /* HPUX has a bug. */
if (strlen (msgp->mtext) >= 512)
{
fprintf (stderr, "emacsclient: args too long for msgsnd\n");
exit (1);
}
#endif
msgp->mtype = 1;
if (msgsnd (s, msgp, strlen (msgp->mtext)+1, 0) < 0)
{