60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
#include "util.h"
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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void* realloc_safe(void* oldptr, size_t size)
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{
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static const char OOM_MSG[] = "fatal: out of memory\n";
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void* ptr = realloc(oldptr, size);
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if (size && !ptr) {
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fwrite(OOM_MSG, 1, sizeof(OOM_MSG) - 1, stderr);
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abort();
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}
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return ptr;
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}
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void* malloc_safe(size_t size)
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{
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return realloc_safe(NULL, size);
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}
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// asprintf is not POSIX
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int alloc_sprintf(char* restrict* restrict out, const char* restrict fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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va_list args2;
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va_copy(args2, args);
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int need = vsnprintf(NULL, 0, fmt, args2);
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va_end(args2);
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*out = realloc_safe(*out, need + 1);
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int written = vsnprintf(*out, need + 1, fmt, args);
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va_end(args);
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return written;
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}
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void log_error(const char* restrict fmt, ...)
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{
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time_t cur_time = time(NULL);
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struct tm tm;
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localtime_r(&cur_time, &tm);
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char time_str[32];
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strftime(time_str, sizeof(time_str), "%c", &tm);
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fprintf(stderr, "[%s] error: ", time_str);
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va_list args;
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va_start(args, fmt);
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vfprintf(stderr, fmt, args);
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va_end(args);
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fputc('\n', stderr);
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}
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void log_errno(const char* detail)
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{
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log_error("%s: %s", detail, strerror(errno));
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}
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