Viewing file:  error-2.c (1.33 KB) -rw-r--r--
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#define NULL ((void*)0)
typedef __SIZE_TYPE__ size_t;
extern int errno;
extern void free (void *);
char *strdup (const char *)
__attribute__((malloc (free)));
extern size_t strlen (const char *__s)
__attribute__ ((__nothrow__ , __leaf__))
__attribute__ ((__pure__))
__attribute__ ((__nonnull__ (1)));
extern void error (int __status, int __errnum, const char *__format, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
extern void error_at_line (int __status, int __errnum, const char *__fname,
unsigned int __lineno, const char *__format, ...)
__attribute__ ((__format__ (__printf__, 5, 6)));
/* PR analyzer/99196; extract taken from
https://github.com/libguestfs/libguestfs/blob/f19fd566f6387ce7e4d82409528c9dde374d25e0/daemon/tar.c#L108
(which is GPLv2 or later). */
extern char *read_whole_file (const char *error_file, size_t *out);
#define EXIT_FAILURE 1
char *read_error_file (const char *error_file)
{
size_t len;
char *str;
str = read_whole_file (error_file, &len);
if (str == NULL) {
str = strdup ("(no error)");
if (str == NULL)
error (EXIT_FAILURE, errno, "strdup");
len = strlen (str); /* { dg-bogus "NULL" } */
}
/* Remove trailing \n character if any. */
if (len > 0 && str[len-1] == '\n')
str[--len] = '\0';
return str; /* caller frees */
}
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