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curl: --continue-at is mutually exclusive with --range

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Allowing both just creates a transfer with behaviors no user can
properly anticipate so better just deny the combo.

Fixes #15646
Reported-by: Harry Sintonen
Closes #15666
This commit is contained in:
Daniel Stenberg 2024-12-02 11:53:54 +01:00
parent fa1a8e0215
commit fcb59534e3
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3 changed files with 14 additions and 0 deletions
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8
src/tool_getparam.c
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@ -1845,6 +1845,10 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
err = getstr(&config->cookiejar, nextarg, DENY_BLANK);
break;
case C_CONTINUE_AT: /* --continue-at */
if(config->range) {
errorf(global, "--continue-at is mutually exclusive with --range");
return PARAM_BAD_USE;
}
/* This makes us continue an ftp transfer at given position */
if(strcmp(nextarg, "-")) {
err = str2offset(&config->resume_from, nextarg);
@ -2397,6 +2401,10 @@ ParameterError getparameter(const char *flag, /* f or -long-flag */
}
break;
case C_RANGE: /* --range */
if(config->use_resume) {
errorf(global, "--continue-at is mutually exclusive with --range");
return PARAM_BAD_USE;
}
/* Specifying a range WITHOUT A DASH will create an illegal HTTP range
(and will not actually be range by definition). The manpage
previously claimed that to be a good way, why this code is added to