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Log: Fix error handling of debug file open

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Logging is not yet initialized, we have to use fprintf() here.

Thanks to Pavel Tvrdik for noticing and debugging it.
This commit is contained in:
Ondrej Zajicek (work) 2016-07-11 20:22:55 +02:00
parent f1f39bb9d8
commit f0b822a831
1 changed files with 6 additions and 1 deletions
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7
sysdep/unix/log.c
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@ -20,6 +20,7 @@
#include <stdarg.h> #include <stdarg.h>
#include <time.h> #include <time.h>
#include <unistd.h> #include <unistd.h>
#include <errno.h>
#include "nest/bird.h" #include "nest/bird.h"
#include "nest/cli.h" #include "nest/cli.h"
@ -314,7 +315,11 @@ log_init_debug(char *f)
else if (!*f) else if (!*f)
dbgf = stderr; dbgf = stderr;
else if (!(dbgf = fopen(f, "a"))) else if (!(dbgf = fopen(f, "a")))
log(L_ERR "Error opening debug file `%s': %m", f); {
/* Cannot use die() nor log() here, logging is not yet initialized */
fprintf(stderr, "bird: Unable to open debug file %s: %s\n", f, strerror(errno));
exit(1);
}
if (dbgf) if (dbgf)
setvbuf(dbgf, NULL, _IONBF, 0); setvbuf(dbgf, NULL, _IONBF, 0);
} }