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libbb: new function bb_die_memory_exhausted

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function                                             old     new   delta
bb_die_memory_exhausted                                -      10     +10
xstrdup                                               28      23      -5
xsetenv                                               27      22      -5
xrealloc                                              32      27      -5
xputenv                                               22      17      -5
xmalloc                                               30      25      -5
xfdopen_helper                                        40      35      -5
xasprintf                                             44      39      -5
wget_main                                           2387    2382      -5
open_socket                                           54      49      -5
glob_brace                                           419     414      -5
bb_get_chunk_from_file                               146     141      -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/11 up/down: 10/-55)           Total: -45 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-04-01 19:59:37 +02:00
parent e2afae6303
commit 899ae5337a
7 changed files with 32 additions and 26 deletions
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2
archival/libarchive/data_extract_to_command.c
View File

@ -37,7 +37,7 @@ static const char *const tar_var[] = {
static void xputenv(char *str)
{
if (putenv(str))
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
}
static void str2env(char *env[], int idx, const char *str)

29
include/libbb.h
View File

@ -1277,20 +1277,21 @@ extern smallint syslog_level;
extern smallint logmode;
extern uint8_t xfunc_error_retval;
extern void (*die_func)(void);
extern void xfunc_die(void) NORETURN FAST_FUNC;
extern void bb_show_usage(void) NORETURN FAST_FUNC;
extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
extern void bb_simple_perror_msg(const char *s) FAST_FUNC;
extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
extern void bb_simple_perror_msg_and_die(const char *s) NORETURN FAST_FUNC;
extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
extern void bb_perror_nomsg_and_die(void) NORETURN FAST_FUNC;
extern void bb_perror_nomsg(void) FAST_FUNC;
extern void bb_verror_msg(const char *s, va_list p, const char *strerr) FAST_FUNC;
extern void bb_logenv_override(void) FAST_FUNC;
void xfunc_die(void) NORETURN FAST_FUNC;
void bb_show_usage(void) NORETURN FAST_FUNC;
void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
void bb_simple_perror_msg(const char *s) FAST_FUNC;
void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
void bb_simple_perror_msg_and_die(const char *s) NORETURN FAST_FUNC;
void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC;
void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC;
void bb_perror_nomsg_and_die(void) NORETURN FAST_FUNC;
void bb_perror_nomsg(void) FAST_FUNC;
void bb_verror_msg(const char *s, va_list p, const char *strerr) FAST_FUNC;
void bb_die_memory_exhausted(void) NORETURN FAST_FUNC;
void bb_logenv_override(void) FAST_FUNC;
/* We need to export XXX_main from libbusybox
* only if we build "individual" binaries

2
libbb/get_line_from_file.c
View File

@ -20,7 +20,7 @@ char* FAST_FUNC bb_get_chunk_from_file(FILE *file, size_t *end)
/* grow the line buffer as necessary */
if (!(idx & 0xff)) {
if (idx == ((size_t)-1) - 0xff)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
linebuf = xrealloc(linebuf, idx + 0x100);
}
linebuf[idx++] = (char) ch;

2
libbb/wfopen.c
View File

@ -42,7 +42,7 @@ static FILE* xfdopen_helper(unsigned fd_and_rw_bit)
{
FILE* fp = fdopen(fd_and_rw_bit >> 1, fd_and_rw_bit & 1 ? "w" : "r");
if (!fp)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
return fp;
}
FILE* FAST_FUNC xfdopen_for_read(int fd)

15
libbb/xfuncs_printf.c
View File

@ -25,6 +25,11 @@
* fail, so callers never need to check for errors. If it returned, it
* succeeded. */
void FAST_FUNC bb_die_memory_exhausted(void)
{
bb_error_msg_and_die(bb_msg_memory_exhausted);
}
#ifndef DMALLOC
/* dmalloc provides variants of these that do abort() on failure.
* Since dmalloc's prototypes overwrite the impls here as they are
@ -44,7 +49,7 @@ void* FAST_FUNC xmalloc(size_t size)
{
void *ptr = malloc(size);
if (ptr == NULL && size != 0)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
return ptr;
}
@ -55,7 +60,7 @@ void* FAST_FUNC xrealloc(void *ptr, size_t size)
{
ptr = realloc(ptr, size);
if (ptr == NULL && size != 0)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
return ptr;
}
#endif /* DMALLOC */
@ -79,7 +84,7 @@ char* FAST_FUNC xstrdup(const char *s)
t = strdup(s);
if (t == NULL)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
return t;
}
@ -327,14 +332,14 @@ char* FAST_FUNC xasprintf(const char *format, ...)
va_end(p);
if (r < 0)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
return string_ptr;
}
void FAST_FUNC xsetenv(const char *key, const char *value)
{
if (setenv(key, value, 1))
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
}
/* Handles "VAR=VAL" strings, even those which are part of environ

4
networking/wget.c
View File

@ -409,7 +409,7 @@ static FILE *open_socket(len_and_sockaddr *lsa)
/* hopefully it understands what ESPIPE means... */
fp = fdopen(fd, "r+");
if (!fp)
bb_perror_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
return fp;
}
@ -1114,7 +1114,7 @@ static void download_one_url(const char *url)
# endif
sfp = fdopen(fd, "r+");
if (!sfp)
bb_perror_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
goto socket_opened;
}
sfp = open_socket(lsa);

4
shell/hush.c
View File

@ -3158,7 +3158,7 @@ static int glob_brace(char *pattern, o_string *o, int n)
return o_save_ptr_helper(o, n);
}
if (gr == GLOB_NOSPACE)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
/* GLOB_ABORTED? Only happens with GLOB_ERR flag,
* but we didn't specify it. Paranoia again. */
bb_error_msg_and_die("glob error %d on '%s'", gr, pattern);
@ -3260,7 +3260,7 @@ static int perform_glob(o_string *o, int n)
goto literal;
}
if (gr == GLOB_NOSPACE)
bb_error_msg_and_die(bb_msg_memory_exhausted);
bb_die_memory_exhausted();
/* GLOB_ABORTED? Only happens with GLOB_ERR flag,
* but we didn't specify it. Paranoia again. */
bb_error_msg_and_die("glob error %d on '%s'", gr, pattern);