Staging
v0.5.1
v0.5.1
Revision 8977c110b5bbd230c28c727ddb85856067d55cfb authored by Junio C Hamano on 04 January 2007, 07:09:08 UTC, committed by Junio C Hamano on 05 January 2007, 06:17:59 UTC
Running the SHA1_Update() on the whole packfile in a single call revealed an overflow problem we had in the SHA-1 implementation on POWER architecture some time ago, which was fixed with commit b47f509b (June 19, 2006). Other SHA-1 implementations may have a similar problem. The sliding mmap() series already makes chunked calls to SHA1_Update(), so this patch itself will become moot when it graduates to "master", but in the meantime, run the hash function in smaller chunks to prevent possible future problems. Signed-off-by: Junio C Hamano <junkio@cox.net>
1 parent 1084b84
pager.c
#include "cache.h"
/*
* This is split up from the rest of git so that we might do
* something different on Windows, for example.
*/
static void run_pager(const char *pager)
{
execlp(pager, pager, NULL);
execl("/bin/sh", "sh", "-c", pager, NULL);
}
void setup_pager(void)
{
pid_t pid;
int fd[2];
const char *pager = getenv("GIT_PAGER");
if (!isatty(1))
return;
if (!pager)
pager = getenv("PAGER");
if (!pager)
pager = "less";
else if (!*pager || !strcmp(pager, "cat"))
return;
pager_in_use = 1; /* means we are emitting to terminal */
if (pipe(fd) < 0)
return;
pid = fork();
if (pid < 0) {
close(fd[0]);
close(fd[1]);
return;
}
/* return in the child */
if (!pid) {
dup2(fd[1], 1);
close(fd[0]);
close(fd[1]);
return;
}
/* The original process turns into the PAGER */
dup2(fd[0], 0);
close(fd[0]);
close(fd[1]);
setenv("LESS", "FRSX", 0);
run_pager(pager);
die("unable to execute pager '%s'", pager);
exit(255);
}
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