diff options
Diffstat (limited to 'lib/ccan/err/err.c')
-rw-r--r-- | lib/ccan/err/err.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/lib/ccan/err/err.c b/lib/ccan/err/err.c new file mode 100644 index 0000000000..9e0e20c86f --- /dev/null +++ b/lib/ccan/err/err.c @@ -0,0 +1,64 @@ +#include "err.h" + +#if !HAVE_ERR_H +#include <stdarg.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> + +static const char *progname = "unknown program"; + +void err_set_progname(const char *name) +{ + progname = name; +} + +void NORETURN err(int eval, const char *fmt, ...) +{ + int err_errno = errno; + va_list ap; + + fprintf(stderr, "%s: ", progname); + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, ": %s\n", strerror(err_errno)); + exit(eval); +} + +void NORETURN errx(int eval, const char *fmt, ...) +{ + va_list ap; + + fprintf(stderr, "%s: ", progname); + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, "\n"); + exit(eval); +} + +void warn(const char *fmt, ...) +{ + int err_errno = errno; + va_list ap; + + fprintf(stderr, "%s: ", progname); + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, ": %s\n", strerror(err_errno)); +} + +void warnx(const char *fmt, ...) +{ + va_list ap; + + fprintf(stderr, "%s: ", progname); + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fprintf(stderr, "\n"); +} +#endif |