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freadln.c: set errno to EINVAL if *output is NULL

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パチュリー・ノーレッジ 2024-03-10 15:06:20 +03:00
parent ec06d2165b
commit 18af3053f3
Signed by: 80486DX2-66
GPG Key ID: 83631EF27054609B
1 changed files with 3 additions and 1 deletions
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c-programming/io/freadln.c
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@ -37,8 +37,10 @@ int freadln(FILE* f, char** output, size_t* length_out) {
freadln_length_type length = 0; // initial length freadln_length_type length = 0; // initial length
*output = malloc((length + 1) * sizeof(char)); *output = malloc((length + 1) * sizeof(char));
if (*output == NULL) if (*output == NULL) {
errno = EINVAL;
return freadln_ERROR; return freadln_ERROR;
}
int character; int character;
while ((character = fgetc(f)) != EOF while ((character = fgetc(f)) != EOF