fmt_with_err() will be shared with the coming error_errno() and
warning_errno().
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
usage.c | 27 ++++++++++++++++-----------
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/usage.c b/usage.c
index 82ff131..8675d72 100644
--- a/usage.c
+++ b/usage.c
@@ -109,19 +109,11 @@ void NORETURN die(const char *err, ...)
va_end(params);
}
-void NORETURN die_errno(const char *fmt, ...)
+static const char *fmt_with_err(char *buf, int n, const char *fmt)
{
- va_list params;
- char fmt_with_err[1024];
char str_error[256], *err;
int i, j;
- if (die_is_recursing()) {
- fputs("fatal: recursion detected in die_errno handler\n",
- stderr);
- exit(128);
- }
-
err = strerror(errno);
for (i = j = 0; err[i] && j < sizeof(str_error) - 1; ) {
if ((str_error[j++] = err[i++]) != '%')
@@ -136,10 +128,23 @@ void NORETURN die_errno(const char *fmt, ...)
}
}
str_error[j] = 0;
- snprintf(fmt_with_err, sizeof(fmt_with_err), "%s: %s", fmt, str_error);
+ snprintf(buf, n, "%s: %s", fmt, str_error);
+ return buf;
+}
+
+void NORETURN die_errno(const char *fmt, ...)
+{
+ char buf[1024];
+ va_list params;
+
+ if (die_is_recursing()) {
+ fputs("fatal: recursion detected in die_errno handler\n",
+ stderr);
+ exit(128);
+ }
va_start(params, fmt);
- die_routine(fmt_with_err, params);
+ die_routine(fmt_with_err(buf, sizeof(buf), fmt), params);
va_end(params);
}
--
2.8.0.rc0.210.gd302cd2
--
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