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Optimize strlen calls in putname

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Working version of https://github.com/yarrick/iodine/pull/111
This commit is contained in:
Erik Ekman 2025-05-13 21:52:43 +02:00
parent 50caf2c45f
commit f12d2a5554
1 changed files with 6 additions and 5 deletions
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11
src/read.c
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@ -168,15 +168,16 @@ putname(char **buf, size_t buflen, const char *host)
word = strtok(h, "."); word = strtok(h, ".");
while(word) { while(word) {
if (strlen(word) > 63 || strlen(word) > left) { size_t word_len = strlen(word);
if (word_len > 63 || word_len > left) {
free(h); free(h);
return -1; return -1;
} }
left -= (strlen(word) + 1); left -= (word_len + 1);
*p++ = (char)strlen(word); *p++ = (char)word_len;
memcpy(p, word, strlen(word)); memcpy(p, word, word_len);
p += strlen(word); p += word_len;
word = strtok(NULL, "."); word = strtok(NULL, ".");
} }