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Check return value of asprintf 

On the awful operating system GNU, asprintf leaves the destination
pointer UNDEFINED on failure.
master
C. McEnroe 2020-08-01 22:18:23 -04:00
parent 387f2c1fa3
commit bd8997ef09
1 changed files with 6 additions and 4 deletions
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10
ignore.c
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@ -45,17 +45,19 @@ const char *ignoreAdd(const char *pattern) {
if (*ch == ' ') sp++;
}
char **dest = &ignore.patterns[ignore.len++];
int n = 0;
if (!ex && !sp) {
asprintf(dest, "%s!*@* * * *", pattern);
n = asprintf(dest, "%s!*@* * * *", pattern);
} else if (sp < 1) {
asprintf(dest, "%s * * *", pattern);
n = asprintf(dest, "%s * * *", pattern);
} else if (sp < 2) {
asprintf(dest, "%s * *", pattern);
n = asprintf(dest, "%s * *", pattern);
} else if (sp < 3) {
asprintf(dest, "%s *", pattern);
n = asprintf(dest, "%s *", pattern);
} else {
*dest = strdup(pattern);
}
if (n < 0) err(EX_OSERR, "asprintf");
if (!*dest) err(EX_OSERR, "strdup");
return *dest;
}