Proxmox/proxmox-mini-journalreader
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correctly check write return value

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Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2019-05-14 14:50:47 +02:00
parent de3b55a800
commit d1a87ba237
1 changed files with 9 additions and 3 deletions
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src/mini-journalreader.c
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@ -54,7 +54,10 @@ void print_to_buf(const char * string, uint32_t length) {
strncpy(buf + offset, string + string_offset, BUFSIZE - offset);
string_offset += BUFSIZE - offset;
remaining = length - string_offset;
write (1, buf, BUFSIZE);
if (write (1, buf, BUFSIZE) <= 0) {
perror("write to stdout failed");
exit(1);
}
offset = 0;
}
strncpy(buf + offset, string + string_offset, remaining);
@ -351,10 +354,13 @@ int main(int argc, char *argv[]) {
// print final cursor
print_cursor(j);
sd_journal_close(j);
// print remaining buffer
write(1, buf, offset);
sd_journal_close(j);
if (write (1, buf, offset) <= 0) {
perror("write to stdout failed");
return 1;
}
return 0;
}