diff options
Diffstat (limited to 'slstatus/util.c')
-rw-r--r-- | slstatus/util.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/slstatus/util.c b/slstatus/util.c deleted file mode 100644 index 85366bf..0000000 --- a/slstatus/util.c +++ /dev/null @@ -1,146 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <errno.h> -#include <stdarg.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "util.h" - -char *argv0; - -static void -verr(const char *fmt, va_list ap) -{ - if (argv0 && strncmp(fmt, "usage", sizeof("usage") - 1)) { - fprintf(stderr, "%s: ", argv0); - } - - vfprintf(stderr, fmt, ap); - - if (fmt[0] && fmt[strlen(fmt) - 1] == ':') { - fputc(' ', stderr); - perror(NULL); - } else { - fputc('\n', stderr); - } -} - -void -warn(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - verr(fmt, ap); - va_end(ap); -} - -void -die(const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - verr(fmt, ap); - va_end(ap); - - exit(1); -} - -static int -evsnprintf(char *str, size_t size, const char *fmt, va_list ap) -{ - int ret; - - ret = vsnprintf(str, size, fmt, ap); - - if (ret < 0) { - warn("vsnprintf:"); - return -1; - } else if ((size_t)ret >= size) { - warn("vsnprintf: Output truncated"); - return -1; - } - - return ret; -} - -int -esnprintf(char *str, size_t size, const char *fmt, ...) -{ - va_list ap; - int ret; - - va_start(ap, fmt); - ret = evsnprintf(str, size, fmt, ap); - va_end(ap); - - return ret; -} - -const char * -bprintf(const char *fmt, ...) -{ - va_list ap; - int ret; - - va_start(ap, fmt); - ret = evsnprintf(buf, sizeof(buf), fmt, ap); - va_end(ap); - - return (ret < 0) ? NULL : buf; -} - -const char * -fmt_human(uintmax_t num, int base) -{ - double scaled; - size_t i, prefixlen; - const char **prefix; - const char *prefix_1000[] = { "", "k", "M", "G", "T", "P", "E", "Z", - "Y" }; - const char *prefix_1024[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", - "Zi", "Yi" }; - - switch (base) { - case 1000: - prefix = prefix_1000; - prefixlen = LEN(prefix_1000); - break; - case 1024: - prefix = prefix_1024; - prefixlen = LEN(prefix_1024); - break; - default: - warn("fmt_human: Invalid base"); - return NULL; - } - - scaled = num; - for (i = 0; i < prefixlen && scaled >= base; i++) { - scaled /= base; - } - - return bprintf("%.1f %s", scaled, prefix[i]); -} - -int -pscanf(const char *path, const char *fmt, ...) -{ - FILE *fp; - va_list ap; - int n; - - if (!(fp = fopen(path, "r"))) { - warn("fopen '%s':", path); - return -1; - } - va_start(ap, fmt); - n = vfscanf(fp, fmt, ap); - va_end(ap); - fclose(fp); - - return (n == EOF) ? -1 : n; -} |