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BUG/MINOR: config: Reinforce validity check when a process number is parsed

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Now, in the function parse_process_number(), when a process number or a set of
processes is parsed, an error is triggered if an invalid character is found. It
means following syntaxes are not forbidden and will emit an alert during the
HAProxy startup:

  1a
  1/2
  1-2-3

This bug was reported on Github. See issue #36.

This patch may be backported to 1.9 and 1.8.
This commit is contained in:
Christopher Faulet 2019-02-07 16:29:41 +01:00
parent 11389018bc
commit 18cca781f5
1 changed files with 9 additions and 5 deletions
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14
src/cfgparse.c
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@ -369,16 +369,20 @@ int parse_process_number(const char *arg, unsigned long *proc, int max, int *aut
else if (strcmp(arg, "even") == 0)
*proc |= (~0UL/3UL) << 1; /* 0xAAA...AAA */
else {
char *dash;
const char *p, *dash = NULL;
unsigned int low, high;
if (!isdigit((int)*arg)) {
memprintf(err, "'%s' is not a valid number.\n", arg);
return -1;
for (p = arg; *p; p++) {
if (*p == '-' && !dash)
dash = p;
else if (!isdigit((int)*p)) {
memprintf(err, "'%s' is not a valid number/range.", arg);
return -1;
}
}
low = high = str2uic(arg);
if ((dash = strchr(arg, '-')) != NULL)
if (dash)
high = ((!*(dash+1)) ? max : str2uic(dash + 1));
if (high < low) {