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libpsl
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use alloca instead of malloc for command buffer allocation

This commit is contained in:
Tim Ruehsen 2014-05-12 12:27:32 +02:00
parent 1efb6b75f4
commit 7d3e2eebb2
1 changed files with 7 additions and 9 deletions
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8
src/psl2c.c
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@ -365,7 +365,8 @@ int main(int argc, const char **argv)
if ((fpout = fopen(argv[2], "w"))) {
FILE *pp;
struct stat st;
char *cmd, checksum[64] = "";
size_t cmdsize = 16 + strlen(argv[1]);
char *cmd = alloca(cmdsize), checksum[64] = "";
_add_punycode_if_needed(psl->suffixes);
_add_punycode_if_needed(psl->suffix_exceptions);
@ -373,15 +374,12 @@ int main(int argc, const char **argv)
_print_psl_entries(fpout, psl->suffixes, "suffixes");
_print_psl_entries(fpout, psl->suffix_exceptions, "suffix_exceptions");
if ((cmd = malloc(16 + strlen(argv[1])))) {
snprintf(cmd, 16 + strlen(argv[1]), "sha1sum %s", argv[1]);
snprintf(cmd, cmdsize, "sha1sum %s", argv[1]);
if ((pp = popen(cmd, "r"))) {
if (fscanf(pp, "%63[0-9a-zA-Z]", checksum) < 1)
*checksum = 0;
pclose(pp);
}
free(cmd);
}
if (stat(argv[1], &st) != 0)
st.st_mtime = 0;