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bin/xbps-checkvers: avoid infinite loops when checking reverts

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This commit is contained in:
Michael Gehring 2017-07-16 19:33:42 +00:00
parent 66c6331689
commit 52d3077206
1 changed files with 4 additions and 2 deletions
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6
bin/xbps-checkvers/main.c
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@ -529,7 +529,7 @@ check_reverts(const char *repover, const map_item_t reverts)
bool rv = false;
char *sreverts, *p;
if (reverts.v.len == 0)
if (reverts.v.len == 0 || strlen(repover) < 1)
return rv;
sreverts = calloc(reverts.v.len+1, sizeof(char));
@ -542,8 +542,10 @@ check_reverts(const char *repover, const map_item_t reverts)
* Check if it's the first character or the previous character is a
* whitespace.
*/
if (p > sreverts && !isalpha(p[-1]) && !isspace(p[-1]))
if (p > sreverts && !isalpha(p[-1]) && !isspace(p[-1])) {
p++; // always advance
continue;
}
p += strlen(repover);
/*
* Check if it's the last character or if the next character is a