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Fix sign-extension bug with signed chars in attribute names

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This commit is contained in:
Eric Fischer 2015-06-21 11:18:14 -07:00
parent a42dbd7968
commit 59faead7fa
1 changed files with 11 additions and 5 deletions
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16
mbtiles.c
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@ -75,19 +75,25 @@ static void quote(char **buf, const char *s) {
char *out = tmp;
for (; *s != '\0'; s++) {
if (*s == '\\' || *s == '\"') {
unsigned char ch = (unsigned char) *s;
if (ch == '\\' || ch == '\"') {
*out++ = '\\';
*out++ = *s;
} else if (*s < ' ') {
sprintf(out, "\\u%04x", *s);
*out++ = ch;
} else if (ch < ' ') {
sprintf(out, "\\u%04x", ch);
out = out + strlen(out);
} else {
*out++ = *s;
*out++ = ch;
}
}
*out = '\0';
*buf = realloc(*buf, strlen(*buf) + strlen(tmp) + 1);
if (*buf == NULL) {
perror("realloc");
exit(EXIT_FAILURE);
}
strcat(*buf, tmp);
}