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https://github.com/git/git.git
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149d8cbb2e
If realloc() fails then the original buffer is still valid. Free it before exiting the function. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
80 lines
1.4 KiB
C
80 lines
1.4 KiB
C
#include "../../git-compat-util.h"
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static HANDLE ms_eventlog;
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void openlog(const char *ident, int logopt, int facility)
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{
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if (ms_eventlog)
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return;
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ms_eventlog = RegisterEventSourceA(NULL, ident);
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if (!ms_eventlog)
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warning("RegisterEventSource() failed: %lu", GetLastError());
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}
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void syslog(int priority, const char *fmt, ...)
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{
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WORD logtype;
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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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if (!ms_eventlog)
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return;
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va_start(ap, fmt);
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str_len = vsnprintf(NULL, 0, fmt, ap);
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va_end(ap);
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if (str_len < 0) {
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warning_errno("vsnprintf failed");
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return;
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}
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str = malloc(st_add(str_len, 1));
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if (!str) {
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warning_errno("malloc failed");
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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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while ((pos = strstr(str, "%1")) != NULL) {
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char *oldstr = str;
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str = realloc(str, st_add(++str_len, 1));
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if (!str) {
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free(oldstr);
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warning_errno("realloc failed");
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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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case LOG_ALERT:
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case LOG_CRIT:
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case LOG_ERR:
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logtype = EVENTLOG_ERROR_TYPE;
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break;
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case LOG_WARNING:
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logtype = EVENTLOG_WARNING_TYPE;
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break;
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case LOG_NOTICE:
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case LOG_INFO:
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case LOG_DEBUG:
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default:
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logtype = EVENTLOG_INFORMATION_TYPE;
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break;
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}
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ReportEventA(ms_eventlog, logtype, 0, 0, NULL, 1, 0,
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(const char **)&str, NULL);
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free(str);
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}
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