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https://github.com/cesanta/mongoose.git
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83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
#include "log.h"
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#include "util.h"
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static const char *s_spec = "2";
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static void logc(unsigned char c) {
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MG_PUTCHAR(c);
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}
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static void logs(const char *buf, size_t len) {
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size_t i;
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for (i = 0; i < len; i++) logc(((unsigned char *) buf)[i]);
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}
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void mg_log_set(const char *spec) {
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MG_DEBUG(("Setting log level to %s", spec));
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s_spec = spec;
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}
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bool mg_log_prefix(int level, const char *file, int line, const char *fname) {
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// static unsigned long seq;
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int max = MG_LL_INFO;
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struct mg_str k, v, s = mg_str(s_spec);
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const char *p = strrchr(file, '/');
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if (p == NULL) p = strrchr(file, '\\');
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p = p == NULL ? file : p + 1;
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while (mg_commalist(&s, &k, &v)) {
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if (v.len == 0) max = atoi(k.ptr);
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if (v.len > 0 && strncmp(p, k.ptr, k.len) == 0) max = atoi(v.ptr);
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}
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if (level <= max) {
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char buf[41];
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size_t n = mg_snprintf(buf, sizeof(buf), "%llx %d %s:%d:%s", mg_millis(),
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level, p, line, fname);
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if (n > sizeof(buf) - 2) n = sizeof(buf) - 2;
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while (n < sizeof(buf)) buf[n++] = ' ';
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logs(buf, n - 1);
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return true;
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} else {
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return false;
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}
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}
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void mg_log(const char *fmt, ...) {
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char mem[256], *buf = mem;
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va_list ap;
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size_t len;
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va_start(ap, fmt);
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len = mg_vasprintf(&buf, sizeof(mem), fmt, ap);
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va_end(ap);
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logs(buf, len);
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logc((unsigned char) '\n');
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if (buf != mem) free(buf);
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}
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static unsigned char nibble(unsigned c) {
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return (unsigned char) (c < 10 ? c + '0' : c + 'W');
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}
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#define ISPRINT(x) ((x) >= ' ' && (x) <= '~')
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void mg_hexdump(const void *buf, size_t len) {
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const unsigned char *p = (const unsigned char *) buf;
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unsigned char ascii[16], alen = 0;
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size_t i;
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for (i = 0; i < len; i++) {
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if ((i % 16) == 0) {
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// Print buffered ascii chars
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if (i > 0) logs(" ", 2), logs((char *) ascii, 16), logc('\n'), alen = 0;
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// Print hex address, then \t
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logc(nibble((i >> 12) & 15)), logc(nibble((i >> 8) & 15)),
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logc(nibble((i >> 4) & 15)), logc('0'), logs(" ", 3);
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}
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logc(nibble(p[i] >> 4)), logc(nibble(p[i] & 15)); // Two nibbles, e.g. c5
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logc(' '); // Space after hex number
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ascii[alen++] = ISPRINT(p[i]) ? p[i] : '.'; // Add to the ascii buf
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}
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while (alen < 16) logs(" ", 3), ascii[alen++] = ' ';
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logs(" ", 2), logs((char *) ascii, 16), logc('\n');
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}
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