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tmpnam

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tmpnam, tmpnam_r - °ì»þ¥Õ¥¡¥¤¥ë¤Î̾Á°¤òºîÀ®¤¹¤ë

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#include <stdio.h>



char *tmpnam(char *s);

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tmpnam() ´Ø¿ô¤Ï¡¢¥Õ¥¡¥¤¥ë̾¤Ë»È¤¨¤ëʸ»úÎó¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£ ¤¢¤ë»þÅÀ¤Ç¤ÏƱ¤¸Ì¾Á°¤ò»ý¤Ä¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤·¤Ê¤¤¥Õ¥¡¥¤¥ë̾¤¬ÊÖ¤µ¤ì¤ë¤Î¤Ç¡¢ ÍÄÃÕ¤Ê¥×¥í¥°¥é¥Þ¤Ï¤³¤Îʸ»úÎ󤬰ì»þ¥Õ¥¡¥¤¥ë¤Î¥Õ¥¡¥¤¥ë̾¤È¤·¤Æ Ŭ¤·¤Æ¤¤¤ë¤È¹Í¤¨¤ë¤«¤â¤·¤ì¤Ê¤¤¡£ °ú¤­¿ô s ¤¬ NULL ¤Ê¤é¡¢¤³¤Î̾Á°¤ÏÆâÉô¤ÎÀÅŪ¥Ð¥Ã¥Õ¥¡¤ËºîÀ®¤µ¤ì¡¢ ¼¡¤Ë tmpnam() ´Ø¿ô¤¬¸Æ¤Ó½Ð¤µ¤ì¤¿»þ¤Ë¾å½ñ¤­¤µ¤ì¤ë¡£ s ¤¬ NULL ¤Ç¤Ê¤±¤ì¤Ð¡¢¥Õ¥¡¥¤¥ë̾¤Ï s ¤¬»Ø¤¹ (¾¯¤Ê¤¯¤È¤â L_tmpnam ¤ÎŤµ¤ò»ý¤Ä) ʸ»úÇÛÎó¤Ë¥³¥Ô¡¼¤µ¤ì¡¢ À®¸ù¤·¤¿¾ì¹ç¤Ï s ¤¬ÊÖ¤µ¤ì¤ë¡£

ºîÀ®¤µ¤ì¤ë¥Ñ¥¹Ì¾¤Ï¡¢¥Ç¥£¥ì¥¯¥È¥ê¤ÎÉôʬ¤Ë P_tmpdir ¤¬»È¤ï¤ì¤ë¡£ (L_tmpnam ¤È P_tmpdir ¤Ï¡¢°Ê²¼¤ÇÀâÌÀ¤¹¤ë TMP_MAX ƱÍÍ <stdio.h> ¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë)

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tmpnam() ´Ø¿ô¤Ï°ì°Õ¤Ê°ì»þ¥Õ¥¡¥¤¥ë̾¤Ø¤Î¥Ý¥¤¥ó¥¿¤òÊÖ¤¹¡£ °ì°Õ¤Ê¥Õ¥¡¥¤¥ë̾¤¬ºîÀ®¤Ç¤­¤Ê¤«¤Ã¤¿¾ì¹ç¤Ï NULL ¤òÊÖ¤¹¡£

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SVr4, 4.3BSD, C89, C99, POSIX.1-2001.

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tmpnam() ´Ø¿ô¤ÏºÇÂç TMP_MAX ²ó¤Þ¤Ç¡¢¸Æ¤Ó½Ð¤µ¤ì¤ëÅ٤˰ۤʤëʸ»úÎó¤òºîÀ®¤¹¤ë¡£ TMP_MAX ²ó°Ê¾å¸Æ¤Ó½Ð¤µ¤ì¤¿¾ì¹ç¡¢¤½¤ÎÆ°ºî¤Ï¼ÂÁõ°Í¸¤Ç¤¢¤ë¡£

tmpnam(3) ¤Ï¿ä¬¤¬Æñ¤·¤¤Ì¾Á°¤òÀ¸À®¤¹¤ë¤¬¡¢¤½¤ì¤Ë¤â¤«¤«¤ï¤é¤º¡¢ tmpnam(3) ¤¬¥Ñ¥¹Ì¾¤òÊÖ¤·¤Æ¤«¤é¡¢¥×¥í¥°¥é¥à¤¬¤½¤Î¥Õ¥¡¥¤¥ë¤ò¥ª¡¼¥×¥ó¤¹¤ë ¤Þ¤Ç¤Î´Ö¤Ë¡¢ÊÌ¤Î¥×¥í¥°¥é¥à¤¬Æ±¤¸¥Ñ¥¹Ì¾¤Ç¡¢¥Õ¥¡¥¤¥ë¤ò open(2) ¤ÇºîÀ®¤·¤¿¤ê¡¢¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤òºîÀ®¤·¤¿¤ê¤¹¤ë²ÄǽÀ­¤¬¤¢¤ë¡£ ¤³¤ì¤Ï¥»¥­¥å¥ê¥Æ¥£¥Û¡¼¥ë¤Ë¤Ä¤Ê¤¬¤ë²ÄǽÀ­¤¬¤¢¤ë¡£ ¤½¤Î¤è¤¦¤Ê²ÄǽÀ­¤ò²óÈò¤¹¤ë¤¿¤á¤Ë¤Ï¡¢ open(2) ¤Î O_EXCL ¥Õ¥é¥°¤ò»È¤Ã¤Æ¥Ñ¥¹Ì¾¤ò¥ª¡¼¥×¥ó¤¹¤ì¤Ð¤è¤¤¡£ ¤â¤Ã¤È¤¤¤¤¤Î¤Ï¡¢ mkstemp(3) ¤ä tmpfile(3) ¤ò»È¤¦¤³¤È¤Ç¤¢¤ë¡£

°Ü¿¢À­¤¬É¬Íפʡ¢¥¹¥ì¥Ã¥É¤ò»È¤Ã¤¿¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ç¤Ï¡¢ _POSIX_THREADS ¤« _POSIX_THREAD_SAFE_FUNCTIONS ¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¤Ë¡¢ tmpnam() ´Ø¿ô¤ò NULL °ú¤­¿ô¤Ç¸Æ¤Ó½Ð¤·¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

POSIX Áð°Æ¤Ç¤Ï¡¢´Ø¿ô tmpnam_r() ¤ò»È¤¦¤³¤È¤òÄó°Æ¤·¤Æ¤¤¤ë¡£ ¤³¤Î´Ø¿ô¤Ï¡¢°Ê²¼¤Î¤è¤¦¤ËÄêµÁ¤µ¤ì¤Æ¤ª¤ê¡¢ NULL ¤ò»È¤ï¤Ê¤¤¤è¤¦¤Ë¤È¤¤¤¦·Ù¹ð¤Î°ÕÌ£¤Ç NULL ¤òÊÌ°·¤¤¤·¤Æ¤¤¤ë¡£

char *

tmpnam_r(char *s)

{

    return s ? tmpnam(s) : NULL;

}

¿ô¤Ï¾¯¤Ê¤¤¤¬¡¢¤³¤Î´Ø¿ô¤ò¼ÂÁõ¤·¤Æ¤¤¤ë¥·¥¹¥Æ¥à¤â¤¢¤ë¡£ ¤³¤Î´Ø¿ô¤Î glibc ¤Î¥×¥í¥È¥¿¥¤¥×¤ò»È¤¦¤Ë¤Ï¡¢ <stdio.h> ¤ò¥¤¥ó¥¯¥ë¡¼¥É¤¹¤ëÁ°¤Ë _SVID_SOURCE ¤« _BSD_SOURCE ¤òÄêµÁ¤·¤Æ¤ª¤¯ ɬÍפ¬¤¢¤ë¡£

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·è¤·¤Æ¤³¤Î´Ø¿ô¤ò»È¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£Âå¤ï¤ê¤Ë mkstemp(3) ¤« tmpfile(3) ¤ò»È¤¦¤³¤È¡£

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mkstemp(3), mktemp(3), tempnam(3), tmpfile(3)