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string.h File Reference
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Data Structures

struct  PromptInterruptContext
 

Typedefs

typedef struct PromptInterruptContext PromptInterruptContext
 

Functions

bool pg_str_endswith (const char *str, const char *end)
 
int strtoint (const char *pg_restrict str, char **pg_restrict endptr, int base)
 
void pg_clean_ascii (char *str)
 
int pg_strip_crlf (char *str)
 
bool pg_is_ascii (const char *str)
 
char * pg_get_line (FILE *stream, PromptInterruptContext *prompt_ctx)
 
bool pg_get_line_buf (FILE *stream, struct StringInfoData *buf)
 
bool pg_get_line_append (FILE *stream, struct StringInfoData *buf, PromptInterruptContext *prompt_ctx)
 
char * simple_prompt (const char *prompt, bool echo)
 
char * simple_prompt_extended (const char *prompt, bool echo, PromptInterruptContext *prompt_ctx)
 

Typedef Documentation

◆ PromptInterruptContext

Function Documentation

◆ pg_clean_ascii()

void pg_clean_ascii ( char *  str)

Definition at line 82 of file string.c.

83 {
84  /* Only allow clean ASCII chars in the string */
85  char *p;
86 
87  for (p = str; *p != '\0'; p++)
88  {
89  if (*p < 32 || *p > 126)
90  *p = '?';
91  }
92 }

References generate_unaccent_rules::str.

Referenced by check_application_name(), check_cluster_name(), and ProcessStartupPacket().

◆ pg_get_line()

char* pg_get_line ( FILE *  stream,
PromptInterruptContext prompt_ctx 
)

Definition at line 59 of file pg_get_line.c.

60 {
62 
64 
65  if (!pg_get_line_append(stream, &buf, prompt_ctx))
66  {
67  /* ensure that free() doesn't mess up errno */
68  int save_errno = errno;
69 
70  pfree(buf.data);
71  errno = save_errno;
72  return NULL;
73  }
74 
75  return buf.data;
76 }
void pfree(void *pointer)
Definition: mcxt.c:1175
bool pg_get_line_append(FILE *stream, StringInfo buf, PromptInterruptContext *prompt_ctx)
Definition: pg_get_line.c:124
static char * buf
Definition: pg_test_fsync.c:67
void initStringInfo(StringInfo str)
Definition: stringinfo.c:59

References buf, initStringInfo(), pfree(), and pg_get_line_append().

Referenced by get_su_pwd(), and simple_prompt_extended().

◆ pg_get_line_append()

bool pg_get_line_append ( FILE *  stream,
struct StringInfoData buf,
PromptInterruptContext prompt_ctx 
)

◆ pg_get_line_buf()

bool pg_get_line_buf ( FILE *  stream,
struct StringInfoData buf 
)

◆ pg_is_ascii()

bool pg_is_ascii ( const char *  str)

Definition at line 99 of file string.c.

100 {
101  while (*str)
102  {
103  if (IS_HIGHBIT_SET(*str))
104  return false;
105  str++;
106  }
107  return true;
108 }
#define IS_HIGHBIT_SET(ch)
Definition: c.h:1164

References IS_HIGHBIT_SET, and generate_unaccent_rules::str.

Referenced by parse_key_value_arrays(), pg_import_system_collations(), and pg_saslprep().

◆ pg_str_endswith()

bool pg_str_endswith ( const char *  str,
const char *  end 
)

Definition at line 31 of file string.c.

32 {
33  size_t slen = strlen(str);
34  size_t elen = strlen(end);
35 
36  /* can't be a postfix if longer */
37  if (elen > slen)
38  return false;
39 
40  /* compare the end of the strings */
41  str += slen - elen;
42  return strcmp(str, end) == 0;
43 }

References generate_unaccent_rules::str.

Referenced by decide_file_action(), extract_directory(), and StartupReplicationSlots().

◆ pg_strip_crlf()

int pg_strip_crlf ( char *  str)

Definition at line 121 of file string.c.

122 {
123  int len = strlen(str);
124 
125  while (len > 0 && (str[len - 1] == '\n' ||
126  str[len - 1] == '\r'))
127  str[--len] = '\0';
128 
129  return len;
130 }
const void size_t len

References len, and generate_unaccent_rules::str.

Referenced by adjust_data_dir(), check_exec(), CheckDataVersion(), get_prompt(), get_sock_dir(), get_su_pwd(), getRestoreCommand(), passwordFromFile(), run_ssl_passphrase_command(), simple_prompt_extended(), and tokenize_auth_file().

◆ simple_prompt()

char* simple_prompt ( const char *  prompt,
bool  echo 
)

Definition at line 38 of file sprompt.c.

39 {
40  return simple_prompt_extended(prompt, echo, NULL);
41 }
char * simple_prompt_extended(const char *prompt, bool echo, PromptInterruptContext *prompt_ctx)
Definition: sprompt.c:53

References simple_prompt_extended().

Referenced by ConnectDatabase(), connectDatabase(), doConnect(), get_su_pwd(), GetConnection(), main(), sql_conn(), vacuumlo(), and yesno_prompt().

◆ simple_prompt_extended()

char* simple_prompt_extended ( const char *  prompt,
bool  echo,
PromptInterruptContext prompt_ctx 
)

Definition at line 53 of file sprompt.c.

55 {
56  char *result;
57  FILE *termin,
58  *termout;
59 #if defined(HAVE_TERMIOS_H)
60  struct termios t_orig,
61  t;
62 #elif defined(WIN32)
63  HANDLE t = NULL;
64  DWORD t_orig = 0;
65 #endif
66 
67 #ifdef WIN32
68 
69  /*
70  * A Windows console has an "input code page" and an "output code page";
71  * these usually match each other, but they rarely match the "Windows ANSI
72  * code page" defined at system boot and expected of "char *" arguments to
73  * Windows API functions. The Microsoft CRT write() implementation
74  * automatically converts text between these code pages when writing to a
75  * console. To identify such file descriptors, it calls GetConsoleMode()
76  * on the underlying HANDLE, which in turn requires GENERIC_READ access on
77  * the HANDLE. Opening termout in mode "w+" allows that detection to
78  * succeed. Otherwise, write() would not recognize the descriptor as a
79  * console, and non-ASCII characters would display incorrectly.
80  *
81  * XXX fgets() still receives text in the console's input code page. This
82  * makes non-ASCII credentials unportable.
83  *
84  * Unintuitively, we also open termin in mode "w+", even though we only
85  * read it; that's needed for SetConsoleMode() to succeed.
86  */
87  termin = fopen("CONIN$", "w+");
88  termout = fopen("CONOUT$", "w+");
89 #else
90 
91  /*
92  * Do not try to collapse these into one "w+" mode file. Doesn't work on
93  * some platforms (eg, HPUX 10.20).
94  */
95  termin = fopen("/dev/tty", "r");
96  termout = fopen("/dev/tty", "w");
97 #endif
98  if (!termin || !termout
99 #ifdef WIN32
100 
101  /*
102  * Direct console I/O does not work from the MSYS 1.0.10 console. Writes
103  * reach nowhere user-visible; reads block indefinitely. XXX This affects
104  * most Windows terminal environments, including rxvt, mintty, Cygwin
105  * xterm, Cygwin sshd, and PowerShell ISE. Switch to a more-generic test.
106  */
107  || (getenv("OSTYPE") && strcmp(getenv("OSTYPE"), "msys") == 0)
108 #endif
109  )
110  {
111  if (termin)
112  fclose(termin);
113  if (termout)
114  fclose(termout);
115  termin = stdin;
116  termout = stderr;
117  }
118 
119  if (!echo)
120  {
121 #if defined(HAVE_TERMIOS_H)
122  /* disable echo via tcgetattr/tcsetattr */
123  tcgetattr(fileno(termin), &t);
124  t_orig = t;
125  t.c_lflag &= ~ECHO;
126  tcsetattr(fileno(termin), TCSAFLUSH, &t);
127 #elif defined(WIN32)
128  /* need the file's HANDLE to turn echo off */
129  t = (HANDLE) _get_osfhandle(_fileno(termin));
130 
131  /* save the old configuration first */
132  GetConsoleMode(t, &t_orig);
133 
134  /* set to the new mode */
135  SetConsoleMode(t, ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT);
136 #endif
137  }
138 
139  if (prompt)
140  {
141  fputs(_(prompt), termout);
142  fflush(termout);
143  }
144 
145  result = pg_get_line(termin, prompt_ctx);
146 
147  /* If we failed to read anything, just return an empty string */
148  if (result == NULL)
149  result = pg_strdup("");
150 
151  /* strip trailing newline, including \r in case we're on Windows */
152  (void) pg_strip_crlf(result);
153 
154  if (!echo)
155  {
156  /* restore previous echo behavior, then echo \n */
157 #if defined(HAVE_TERMIOS_H)
158  tcsetattr(fileno(termin), TCSAFLUSH, &t_orig);
159  fputs("\n", termout);
160  fflush(termout);
161 #elif defined(WIN32)
162  SetConsoleMode(t, t_orig);
163  fputs("\n", termout);
164  fflush(termout);
165 #endif
166  }
167  else if (prompt_ctx && prompt_ctx->canceled)
168  {
169  /* also echo \n if prompt was canceled */
170  fputs("\n", termout);
171  fflush(termout);
172  }
173 
174  if (termin != stdin)
175  {
176  fclose(termin);
177  fclose(termout);
178  }
179 
180  return result;
181 }
#define _(x)
Definition: elog.c:89
char * pg_strdup(const char *in)
Definition: fe_memutils.c:85
static void const char fflush(stdout)
char * pg_get_line(FILE *stream, PromptInterruptContext *prompt_ctx)
Definition: pg_get_line.c:59
int pg_strip_crlf(char *str)
Definition: string.c:121

References _, PromptInterruptContext::canceled, fflush(), pg_get_line(), pg_strdup(), and pg_strip_crlf().

Referenced by exec_command_password(), exec_command_prompt(), prompt_for_password(), and simple_prompt().

◆ strtoint()

int strtoint ( const char *pg_restrict  str,
char **pg_restrict  endptr,
int  base 
)

Definition at line 50 of file string.c.

51 {
52  long val;
53 
54  val = strtol(str, endptr, base);
55  if (val != (int) val)
56  errno = ERANGE;
57  return (int) val;
58 }
long val
Definition: informix.c:664

References generate_unaccent_rules::str, and val.

Referenced by buildDefItem(), DecodeDateTime(), DecodeInterval(), DecodeNumber(), DecodeNumberField(), DecodeTime(), DecodeTimeCommon(), DecodeTimeOnly(), DecodeTimezone(), get_path_all(), jsonb_get_element(), nodeTokenType(), option_parse_int(), push_path(), and setPathArray().