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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef prprf_h___ | |
| 7 #define prprf_h___ | |
| 8 | |
| 9 /* | |
| 10 ** API for PR printf like routines. Supports the following formats | |
| 11 ** %d - decimal | |
| 12 ** %u - unsigned decimal | |
| 13 ** %x - unsigned hex | |
| 14 ** %X - unsigned uppercase hex | |
| 15 ** %o - unsigned octal | |
| 16 ** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above | |
| 17 ** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above | |
| 18 ** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above | |
| 19 ** %s - string | |
| 20 ** %c - character | |
| 21 ** %p - pointer (deals with machine dependent pointer size) | |
| 22 ** %f - float | |
| 23 ** %g - float | |
| 24 */ | |
| 25 #include "prtypes.h" | |
| 26 #include "prio.h" | |
| 27 #include <stdio.h> | |
| 28 #include <stdarg.h> | |
| 29 | |
| 30 PR_BEGIN_EXTERN_C | |
| 31 | |
| 32 /* | |
| 33 ** sprintf into a fixed size buffer. Guarantees that a NUL is at the end | |
| 34 ** of the buffer. Returns the length of the written output, NOT including | |
| 35 ** the NUL, or (PRUint32)-1 if an error occurs. | |
| 36 */ | |
| 37 NSPR_API(PRUint32) PR_snprintf(char *out, PRUint32 outlen, const char *fmt, ...)
; | |
| 38 | |
| 39 /* | |
| 40 ** sprintf into a PR_MALLOC'd buffer. Return a pointer to the malloc'd | |
| 41 ** buffer on success, NULL on failure. Call "PR_smprintf_free" to release | |
| 42 ** the memory returned. | |
| 43 */ | |
| 44 NSPR_API(char*) PR_smprintf(const char *fmt, ...); | |
| 45 | |
| 46 /* | |
| 47 ** Free the memory allocated, for the caller, by PR_smprintf | |
| 48 */ | |
| 49 NSPR_API(void) PR_smprintf_free(char *mem); | |
| 50 | |
| 51 /* | |
| 52 ** "append" sprintf into a PR_MALLOC'd buffer. "last" is the last value of | |
| 53 ** the PR_MALLOC'd buffer. sprintf will append data to the end of last, | |
| 54 ** growing it as necessary using realloc. If last is NULL, PR_sprintf_append | |
| 55 ** will allocate the initial string. The return value is the new value of | |
| 56 ** last for subsequent calls, or NULL if there is a malloc failure. | |
| 57 */ | |
| 58 NSPR_API(char*) PR_sprintf_append(char *last, const char *fmt, ...); | |
| 59 | |
| 60 /* | |
| 61 ** sprintf into a function. The function "f" is called with a string to | |
| 62 ** place into the output. "arg" is an opaque pointer used by the stuff | |
| 63 ** function to hold any state needed to do the storage of the output | |
| 64 ** data. The return value is a count of the number of characters fed to | |
| 65 ** the stuff function, or (PRUint32)-1 if an error occurs. | |
| 66 */ | |
| 67 typedef PRIntn (*PRStuffFunc)(void *arg, const char *s, PRUint32 slen); | |
| 68 | |
| 69 NSPR_API(PRUint32) PR_sxprintf(PRStuffFunc f, void *arg, const char *fmt, ...); | |
| 70 | |
| 71 /* | |
| 72 ** fprintf to a PRFileDesc | |
| 73 */ | |
| 74 NSPR_API(PRUint32) PR_fprintf(struct PRFileDesc* fd, const char *fmt, ...); | |
| 75 | |
| 76 /* | |
| 77 ** va_list forms of the above. | |
| 78 */ | |
| 79 NSPR_API(PRUint32) PR_vsnprintf(char *out, PRUint32 outlen, const char *fmt, va_
list ap); | |
| 80 NSPR_API(char*) PR_vsmprintf(const char *fmt, va_list ap); | |
| 81 NSPR_API(char*) PR_vsprintf_append(char *last, const char *fmt, va_list ap); | |
| 82 NSPR_API(PRUint32) PR_vsxprintf(PRStuffFunc f, void *arg, const char *fmt, va_li
st ap); | |
| 83 NSPR_API(PRUint32) PR_vfprintf(struct PRFileDesc* fd, const char *fmt, va_list a
p); | |
| 84 | |
| 85 /* | |
| 86 *************************************************************************** | |
| 87 ** FUNCTION: PR_sscanf | |
| 88 ** DESCRIPTION: | |
| 89 ** PR_sscanf() scans the input character string, performs data | |
| 90 ** conversions, and stores the converted values in the data objects | |
| 91 ** pointed to by its arguments according to the format control | |
| 92 ** string. | |
| 93 ** | |
| 94 ** PR_sscanf() behaves the same way as the sscanf() function in the | |
| 95 ** Standard C Library (stdio.h), with the following exceptions: | |
| 96 ** - PR_sscanf() handles the NSPR integer and floating point types, | |
| 97 ** such as PRInt16, PRInt32, PRInt64, and PRFloat64, whereas | |
| 98 ** sscanf() handles the standard C types like short, int, long, | |
| 99 ** and double. | |
| 100 ** - PR_sscanf() has no multibyte character support, while sscanf() | |
| 101 ** does. | |
| 102 ** INPUTS: | |
| 103 ** const char *buf | |
| 104 ** a character string holding the input to scan | |
| 105 ** const char *fmt | |
| 106 ** the format control string for the conversions | |
| 107 ** ... | |
| 108 ** variable number of arguments, each of them is a pointer to | |
| 109 ** a data object in which the converted value will be stored | |
| 110 ** OUTPUTS: none | |
| 111 ** RETURNS: PRInt32 | |
| 112 ** The number of values converted and stored. | |
| 113 ** RESTRICTIONS: | |
| 114 ** Multibyte characters in 'buf' or 'fmt' are not allowed. | |
| 115 *************************************************************************** | |
| 116 */ | |
| 117 | |
| 118 NSPR_API(PRInt32) PR_sscanf(const char *buf, const char *fmt, ...); | |
| 119 | |
| 120 PR_END_EXTERN_C | |
| 121 | |
| 122 #endif /* prprf_h___ */ | |
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Chromium Code Reviews
Issue 2078763002:
Delete bundled copy of NSS and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/nss@master