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Diffstat (limited to 'write_or_die.c')
-rw-r--r--write_or_die.c39
1 files changed, 28 insertions, 11 deletions
diff --git a/write_or_die.c b/write_or_die.c
index d45b536021..e7afe7a295 100644
--- a/write_or_die.c
+++ b/write_or_die.c
@@ -1,5 +1,15 @@
#include "cache.h"
+static void check_pipe(int err)
+{
+ if (err == EPIPE) {
+ signal(SIGPIPE, SIG_DFL);
+ raise(SIGPIPE);
+ /* Should never happen, but just in case... */
+ exit(141);
+ }
+}
+
/*
* Some cases use stdio, but want to flush after the write
* to get error handling (and to get better interactive
@@ -34,17 +44,26 @@ void maybe_flush_or_die(FILE *f, const char *desc)
return;
}
if (fflush(f)) {
- /*
- * On Windows, EPIPE is returned only by the first write()
- * after the reading end has closed its handle; subsequent
- * write()s return EINVAL.
- */
- if (errno == EPIPE || errno == EINVAL)
- exit(0);
+ check_pipe(errno);
die_errno("write failure on '%s'", desc);
}
}
+void fprintf_or_die(FILE *f, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = vfprintf(f, fmt, ap);
+ va_end(ap);
+
+ if (ret < 0) {
+ check_pipe(errno);
+ die_errno("write error");
+ }
+}
+
void fsync_or_die(int fd, const char *msg)
{
if (fsync(fd) < 0) {
@@ -55,8 +74,7 @@ void fsync_or_die(int fd, const char *msg)
void write_or_die(int fd, const void *buf, size_t count)
{
if (write_in_full(fd, buf, count) < 0) {
- if (errno == EPIPE)
- exit(0);
+ check_pipe(errno);
die_errno("write error");
}
}
@@ -64,8 +82,7 @@ void write_or_die(int fd, const void *buf, size_t count)
int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg)
{
if (write_in_full(fd, buf, count) < 0) {
- if (errno == EPIPE)
- exit(0);
+ check_pipe(errno);
fprintf(stderr, "%s: write error (%s)\n",
msg, strerror(errno));
return 0;