sof/tools/logger/misc.c

108 lines
2.1 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright(c) 2020 Intel Corporation. All rights reserved.
*
* Author: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
*/
#include "convert.h"
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char *log_vasprintf(const char *format, va_list args)
{
va_list args_copy;
int size;
char localbuf[1];
char *result;
va_copy(args_copy, args);
size = vsnprintf(localbuf, 1, format, args_copy);
va_end(args_copy);
result = malloc(size + 1);
if (result)
vsnprintf(result, size + 1, format, args);
return result;
}
char *log_asprintf(const char *format, ...)
{
va_list args;
char *result;
va_start(args, format);
result = log_vasprintf(format, args);
va_end(args);
return result;
}
extern struct convert_config *global_config;
/** Prints 1. once to stderr. 2. a second time to the global out_fd if
* out_fd is neither stderr nor stdout (because the -o option was used).
*/
void log_err(const char *fmt, ...)
{
FILE *out_fd = global_config ? global_config->out_fd : NULL;
static const char prefix[] = "error: ";
ssize_t needed_size;
va_list args, args_alloc;
char *buff;
va_start(args, fmt);
/* Print into buff first, then outputs buff twice */
va_copy(args_alloc, args);
needed_size = vsnprintf(NULL, 0, fmt, args_alloc) + 1;
buff = malloc(needed_size);
va_end(args_alloc);
if (buff) {
vsprintf(buff, fmt, args);
fprintf(stderr, "%s%s", prefix, buff);
/* take care about out_fd validity and duplicated logging */
if (out_fd && out_fd != stderr && out_fd != stdout) {
fprintf(out_fd, "%s%s", prefix, buff);
fflush(out_fd);
}
free(buff);
} else {
fprintf(stderr, "%s", prefix);
vfprintf(stderr, fmt, args);
}
va_end(args);
}
/* trim whitespaces from string begin */
char *ltrim(char *s)
{
while (isspace(*s))
s++;
return s;
}
/* trim whitespaces from string end */
char *rtrim(char *s)
{
char *ptr = s + strlen(s) - 1;
while (ptr >= s && isspace(*ptr)) {
*ptr = '\0';
--ptr;
}
return s;
}
/* trim whitespaces from string begin and end*/
char *trim(char *s)
{
return ltrim(rtrim(s));
}