mingw: avoid using strbuf in syslog
strbuf can call die, which again can call syslog from git-daemon. Endless recursion is no fun; fix it by hand-rolling the logic. As a side-effect malloc/realloc errors are changed into non-fatal warnings; this is probably an improvement anyway. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Noticed-by: Johannes Sixt <j.sixt@viscovery.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -1,5 +1,4 @@
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#include "../../git-compat-util.h"
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#include "../../strbuf.h"
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static HANDLE ms_eventlog;
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@ -16,13 +15,8 @@ void openlog(const char *ident, int logopt, int facility)
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void syslog(int priority, const char *fmt, ...)
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{
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struct strbuf sb = STRBUF_INIT;
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struct strbuf_expand_dict_entry dict[] = {
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{"1", "% 1"},
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{NULL, NULL}
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};
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WORD logtype;
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char *str;
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char *str, *pos;
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int str_len;
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va_list ap;
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@ -39,11 +33,24 @@ void syslog(int priority, const char *fmt, ...)
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}
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str = malloc(str_len + 1);
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if (!str) {
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warning("malloc failed: '%s'", strerror(errno));
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return;
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}
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va_start(ap, fmt);
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vsnprintf(str, str_len + 1, fmt, ap);
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va_end(ap);
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strbuf_expand(&sb, str, strbuf_expand_dict_cb, &dict);
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free(str);
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while ((pos = strstr(str, "%1")) != NULL) {
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str = realloc(str, ++str_len + 1);
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if (!str) {
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warning("realloc failed: '%s'", strerror(errno));
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return;
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}
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memmove(pos + 2, pos + 1, strlen(pos));
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pos[1] = ' ';
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}
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switch (priority) {
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case LOG_EMERG:
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@ -66,7 +73,6 @@ void syslog(int priority, const char *fmt, ...)
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}
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ReportEventA(ms_eventlog, logtype, 0, 0, NULL, 1, 0,
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(const char **)&sb.buf, NULL);
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strbuf_release(&sb);
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(const char **)&str, NULL);
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free(str);
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}
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